diff --git a/src/commands/gxgames/api/index.ts b/src/commands/gxgames/api/index.ts
index 8616281..bfd8846 100644
--- a/src/commands/gxgames/api/index.ts
+++ b/src/commands/gxgames/api/index.ts
@@ -20,6 +20,15 @@ import { GG_API } from "../config";
 
 export { LinkStorage, type GxGamesLink } from "./storage";
 
+export const apiUserErrorMessage = (
+  errors: readonly { description: string }[],
+): string =>
+  errors
+    .map(
+      (e) => e.description.slice(0, 1).toUpperCase() + e.description.slice(1),
+    )
+    .join(".\n");
+
 export function getApiClient(
   ctx: Context,
   auth: {
diff --git a/src/commands/gxgames/commands/link-impl.ts b/src/commands/gxgames/commands/link-impl.ts
index 4308241..cbd4ec9 100644
--- a/src/commands/gxgames/commands/link-impl.ts
+++ b/src/commands/gxgames/commands/link-impl.ts
@@ -20,7 +20,7 @@ import { KnownError } from "~/error";
 import type { ProjectPath } from "~/project";
 
 import { createAuthManager } from "../auth";
-import { getApiClient } from "../api";
+import { apiUserErrorMessage, getApiClient } from "../api";
 import { LinkStorage } from "../api";
 
 export default async function (
@@ -38,7 +38,7 @@ export default async function (
     if (!studioId) {
       const studiosRes = await api.getUserStudios({ pageSize: 999 });
       if (!studiosRes.success) {
-        throw new KnownError(studiosRes.errors);
+        throw new KnownError(apiUserErrorMessage(studiosRes.errors));
       }
 
       const selected = await p.select({
@@ -61,7 +61,7 @@ export default async function (
         gameEngine: ["game-maker"],
       });
       if (!gamesRes.success) {
-        throw new KnownError(gamesRes.errors);
+        throw new KnownError(apiUserErrorMessage(gamesRes.errors));
       }
 
       const selected = await p.select({
@@ -90,7 +90,7 @@ export default async function (
           gameEngine: "game-maker",
         });
         if (!res.success) {
-          throw new KnownError(res.errors);
+          throw new KnownError(apiUserErrorMessage(res.errors));
         }
         gameId = res.data.gameId;
         createLog.success(`Game created: ${gameId}`);
diff --git a/src/commands/gxgames/commands/meta-impl.ts b/src/commands/gxgames/commands/meta-impl.ts
index 2801d97..f769eae 100644
--- a/src/commands/gxgames/commands/meta-impl.ts
+++ b/src/commands/gxgames/commands/meta-impl.ts
@@ -18,7 +18,7 @@ import type { Context } from "~/context";
 import { KnownError } from "~/error";
 import type { ProjectPath } from "~/project";
 
-import { LinkStorage } from "../api";
+import { apiUserErrorMessage, LinkStorage } from "../api";
 import { createAuthManager } from "../auth";
 import { getApiClient } from "../api";
 import type {
@@ -47,7 +47,7 @@ export default async function (
 
   const gameRes = await api.getGameDetails(link.gameId);
   if (!gameRes.success) {
-    throw new KnownError(gameRes.errors);
+    throw new KnownError(apiUserErrorMessage(gameRes.errors));
   }
   const game = gameRes.data;
 
@@ -79,7 +79,7 @@ export default async function (
       updateLog.success("Metadata unchanged");
     } else {
       updateLog.error("Failed");
-      throw new KnownError(updateRes.errors);
+      throw new KnownError(apiUserErrorMessage(updateRes.errors));
     }
   } else {
     updateLog.success("Metadata updated");
@@ -97,7 +97,7 @@ export default async function (
     );
     if (!coverRes.success) {
       coverLog.error("Failed");
-      throw new KnownError(coverRes.errors);
+      throw new KnownError(apiUserErrorMessage(coverRes.errors));
     }
     coverLog.success("Cover uploaded");
   }
@@ -112,7 +112,7 @@ export default async function (
     });
     if (!graphicRes.success) {
       graphicLog.error("Failed");
-      throw new KnownError(graphicRes.errors);
+      throw new KnownError(apiUserErrorMessage(graphicRes.errors));
     }
     graphicLog.success("Graphic uploaded");
   }
diff --git a/src/commands/gxgames/commands/publish-impl.ts b/src/commands/gxgames/commands/publish-impl.ts
index 32c0a5f..3f4b47b 100644
--- a/src/commands/gxgames/commands/publish-impl.ts
+++ b/src/commands/gxgames/commands/publish-impl.ts
@@ -19,7 +19,7 @@ import chalk from "chalk";
 import { KnownError } from "~/error";
 import type { ProjectPath } from "~/project";
 
-import { LinkStorage } from "../api";
+import { apiUserErrorMessage, LinkStorage } from "../api";
 import { createAuthManager } from "../auth";
 import { getApiClient } from "../api";
 
@@ -44,7 +44,7 @@ export default async function (
         ),
       );
     }
-    throw new KnownError(res.errors);
+    throw new KnownError(apiUserErrorMessage(res.errors));
   }
 
   publishLog.success("Game published!");
diff --git a/src/commands/gxgames/commands/upload-impl.ts b/src/commands/gxgames/commands/upload-impl.ts
index 4d4c339..f076959 100644
--- a/src/commands/gxgames/commands/upload-impl.ts
+++ b/src/commands/gxgames/commands/upload-impl.ts
@@ -17,7 +17,7 @@
 import type { Context } from "~/context";
 import * as p from "@clack/prompts";
 import chalk from "chalk";
-import { getApiClient } from "../api";
+import { apiUserErrorMessage, getApiClient } from "../api";
 import { createAuthManager } from "../auth";
 import { KnownError } from "~/error";
 import type { ProjectPath } from "~/project";
@@ -40,7 +40,7 @@ export default async function (
     gameEngine: ["game-maker"],
   });
   if (!gamesRes.success) {
-    throw new KnownError(gamesRes.errors);
+    throw new KnownError(apiUserErrorMessage(gamesRes.errors));
   }
 
   const previousVersion = gamesRes.data.games.find(
@@ -70,7 +70,7 @@ export default async function (
     { file: new File([fileBuffer], this.path.basename(flags.file)) },
   );
   if (!res.success) {
-    throw new KnownError(res.errors);
+    throw new KnownError(apiUserErrorMessage(res.errors));
   }
   uploadLog.success("Bundle uploaded");
 
diff --git a/src/error.ts b/src/error.ts
index e5cb3a3..bb3a068 100644
--- a/src/error.ts
+++ b/src/error.ts
@@ -20,10 +20,7 @@
  */
 export class KnownError extends Error {
   constructor(cause: unknown) {
-    const message =
-      cause instanceof Error
-        ? cause.message
-        : JSON.stringify(cause, undefined, 2);
+    const message = cause instanceof Error ? cause.message : String(cause);
     super(message, cause instanceof Error ? { cause } : undefined);
     this.name = "KnownError";
   }
diff --git a/test-game/.gitattributes b/test-game/.gitattributes
new file mode 100644
index 0000000..1fa0145
--- /dev/null
+++ b/test-game/.gitattributes
@@ -0,0 +1,9 @@
+
+# Ignore .yy files for language statistics
+*.yy linguist-generated=true
+
+# force LF for metadata files for merge simplicity
+*.gml text eol=lf
+*.yy text eol=lf
+*.yyp text eol=lf
+*.json text eol=lf
diff --git a/test-game/.github/workflows/compile.yml b/test-game/.github/workflows/compile.yml
new file mode 100644
index 0000000..1b8fed1
--- /dev/null
+++ b/test-game/.github/workflows/compile.yml
@@ -0,0 +1,52 @@
+name: Compile
+
+# This job triggers when opening/updating a pull request or merging to the main branch
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches: [main]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+env:
+  # You can pin a particular version by replacing latest. E.g., @gamemaker/gm-cli@1.0.2
+  GM_COMMAND: "@gamemaker/gm-cli@latest"
+
+jobs:
+  compile:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Check out the git branch to build against
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      # Save a cache that can be reused between runs.
+      # This will future runs faster, just like when you build the game locally
+      - name: Cache
+        uses: actions/cache@v5
+        with:
+          path: .gmcache
+          key: ${{ runner.os }}-gmcache
+
+      # ffmpeg is needed for linux: https://github.com/YoYoGames/GameMaker-Bugs/issues/4977
+      - name: Set up ffmpeg
+        if: ${{ runner.os == 'Linux' }}
+        uses: FedericoCarboni/setup-ffmpeg@v3
+        with:
+          ffmpeg-version: "6.1.0"
+
+      # You can create an access token at https://gamemaker.io/en/account/access-keys
+      # Then, in github, set a Repository Secret named GAMEMAKER_PAT with that value
+      # in you repository Settings/Secrets and Varibles/Actions/New repository secret
+      - run: npx "$GM_COMMAND" login "$GAMEMAKER_PAT"
+        if: ${{ env.GAMEMAKER_PAT != '' }}
+
+      # "Test compile" the game. Does not produce a bundle, but rather checks that it
+      # possible to compile the game
+      - run: npx "$GM_COMMAND" compile
+        env:
+          NO_COLOR: 1
diff --git a/test-game/.github/workflows/package.yml b/test-game/.github/workflows/package.yml
new file mode 100644
index 0000000..69ebbb7
--- /dev/null
+++ b/test-game/.github/workflows/package.yml
@@ -0,0 +1,67 @@
+name: Package
+# This jobs start when the user trigger it manually from Github repository/Actions
+on: [workflow_dispatch]
+
+env:
+  GAME_NAME: "test-game"
+  # You can pin a particular version by replacing latest. E.g., @gamemaker/gm-cli@1.0.2
+  GM_COMMAND: "@gamemaker/gm-cli@latest"
+
+jobs:
+  compile:
+    strategy:
+      matrix:
+        # Select any runner and targets you want to build with
+        # runner: The machine that builds your game. See https://docs.github.com/en/actions/how-tos/write-workflows/choose-where-workflows-run/choose-the-runner-for-a-job
+        # target: The platform the game will run on.
+        include:
+          - runner: ubuntu-latest
+            target: operagx
+          # - runner: ubuntu-latest
+          #   target: linux
+          # - runner: ubuntu-latest
+          #   target: windows
+          # - runner: macos-latest
+          #   target: mac
+    runs-on: ${{ matrix.runner }}
+
+    steps:
+      # Check out the git branch to build against
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      # Save a cache that can be reused between runs.
+      # This will future runs faster, just like when you build the game locally
+      - name: Cache
+        uses: actions/cache@v5
+        with:
+          path: .gmcache
+          key: ${{ runner.os }}-gmcache-${{ matrix.target }}
+
+      # ffmpeg is needed for linux: https://github.com/YoYoGames/GameMaker-Bugs/issues/4977
+      - name: Set up ffmpeg
+        if: ${{ runner.os == 'Linux' }}
+        uses: FedericoCarboni/setup-ffmpeg@v3
+        with:
+          ffmpeg-version: "6.1.0"
+
+      # You can create an access token at https://gamemaker.io/en/account/access-keys
+      # Then, in github, set a Repository Secret named GAMEMAKER_PAT with that value
+      # in you repository Settings/Secrets and Varibles/Actions/New repository secret
+      - run: npx "$GM_COMMAND" login "$GAMEMAKER_PAT"
+        if: ${{ env.GAMEMAKER_PAT != '' }}
+
+      # Build and package the game. Create a file called package.zip.
+      - run: npx "$GM_COMMAND" package --target ${{ matrix.target }} --output ./package.zip
+        env:
+          NO_COLOR: 1
+
+      # Create the final name on the format `name-target-commit.zip` For example `spacerocks-windows-5e0179f.zip`
+      - name: Create artifact name
+        run: echo "ARTIFACT_NAME=${GAME_NAME}-${{ matrix.target }}-${GITHUB_SHA::7}.zip" >> $GITHUB_ENV
+
+      # Upload the game. You can then find it in you github repo under Actions/<The workflow run>/Artifacts
+      - uses: actions/upload-artifact@v7
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ./package.zip
diff --git a/test-game/.gitignore b/test-game/.gitignore
new file mode 100644
index 0000000..7abb693
--- /dev/null
+++ b/test-game/.gitignore
@@ -0,0 +1,63 @@
+
+# Windows
+
+# Windows thumbnail cache files
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# Mac
+
+## General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+## Icon must end with two 
+Icon
+
+## Thumbnails
+._*
+
+## Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+## Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# GameMaker temporary files
+*.resource_order
+*.old
+
+# GMRT build directory
+Build
diff --git a/test-game/.mcp.json b/test-game/.mcp.json
new file mode 100644
index 0000000..faa8e1e
--- /dev/null
+++ b/test-game/.mcp.json
@@ -0,0 +1,10 @@
+{
+  "mcpServers": {
+    "gamemaker-resource-tool": {
+      "type": "stdio",
+      "command": "npx",
+      "args": ["@gamemaker/gm-cli@latest", "resourcetool", "mcp"],
+      "env": {}
+    }
+  }
+}
diff --git a/test-game/AGENTS.md b/test-game/AGENTS.md
new file mode 100644
index 0000000..b372a59
--- /dev/null
+++ b/test-game/AGENTS.md
@@ -0,0 +1,78 @@
+# Editing GameMaker project files
+
+Do not make changes to `.yy` or `.yyp` files yourself.
+It's very hard to correctly edit these manually!
+You MUST use commands exposed by the `gamemaker-resource-tool` MCP server.
+
+# GameMaker Language (GML) Guidance
+
+Make changes to `.gml` files using your built-in tools, if you so wish.
+
+## GML Naming conventions
+
+- Use `snake_case` for all variables and functions
+- Prefix local variables with `_` (e.g., `var _temp_value`, `var _effect`)
+- Prefix resource names based on their type, e.g. obj_player, spr_player, etc.
+
+## GML reserved names
+
+Your own names must avoid clashing with these:
+
+- `score`, `lives`, `health`
+- Position: `x`, `y`
+- Sprite: `sprite_index`, `image_index`, `image_speed`, `image_xscale`, `image_yscale`, `image_angle`, `image_alpha`, `image_blend`
+- Physics: `speed`, `direction`, `friction`, `gravity`, `gravity_direction`
+- Collision: `bbox_left`, `bbox_right`, `bbox_top`, `bbox_bottom`
+- Instance: `id`, `object_index`, `layer`, `depth`, `visible`, `persistent`
+
+## Modern idiomatic GML
+
+GML has support for **structs** (dynamic objects similar to JavaScript).
+
+```gml
+var _mystruct =
+{
+    a : 20,
+    b : "Hello World"
+};
+
+// There is support for constructor functions and methods tied to the struct too
+function Vector2(_x, _y) constructor
+{
+    x = _x;
+    y = _y;
+
+    static Add = function(_vec2)
+    {
+        x += _vec2.x;
+        y += _vec2.y;
+    }
+}
+
+v2 = new Vector2(10, 10);
+```
+
+GML _script_ files now requires one or more function definitions
+
+```gml
+// in move script
+function move(spd, dir)
+{
+    speed = spd;
+    direction = dir;
+}
+
+```
+
+## Library Functions
+
+- Prefer `instance_create_layer()` over deprecated `instance_create()`
+
+# Running / debugging games
+
+To help users debug and play games you can make use of:
+
+```
+npx @gamemaker/gm-cli compile --errors-only
+npx @gamemaker/gm-cli run --errors-only
+```
diff --git a/test-game/CLAUDE.md b/test-game/CLAUDE.md
new file mode 100644
index 0000000..b372a59
--- /dev/null
+++ b/test-game/CLAUDE.md
@@ -0,0 +1,78 @@
+# Editing GameMaker project files
+
+Do not make changes to `.yy` or `.yyp` files yourself.
+It's very hard to correctly edit these manually!
+You MUST use commands exposed by the `gamemaker-resource-tool` MCP server.
+
+# GameMaker Language (GML) Guidance
+
+Make changes to `.gml` files using your built-in tools, if you so wish.
+
+## GML Naming conventions
+
+- Use `snake_case` for all variables and functions
+- Prefix local variables with `_` (e.g., `var _temp_value`, `var _effect`)
+- Prefix resource names based on their type, e.g. obj_player, spr_player, etc.
+
+## GML reserved names
+
+Your own names must avoid clashing with these:
+
+- `score`, `lives`, `health`
+- Position: `x`, `y`
+- Sprite: `sprite_index`, `image_index`, `image_speed`, `image_xscale`, `image_yscale`, `image_angle`, `image_alpha`, `image_blend`
+- Physics: `speed`, `direction`, `friction`, `gravity`, `gravity_direction`
+- Collision: `bbox_left`, `bbox_right`, `bbox_top`, `bbox_bottom`
+- Instance: `id`, `object_index`, `layer`, `depth`, `visible`, `persistent`
+
+## Modern idiomatic GML
+
+GML has support for **structs** (dynamic objects similar to JavaScript).
+
+```gml
+var _mystruct =
+{
+    a : 20,
+    b : "Hello World"
+};
+
+// There is support for constructor functions and methods tied to the struct too
+function Vector2(_x, _y) constructor
+{
+    x = _x;
+    y = _y;
+
+    static Add = function(_vec2)
+    {
+        x += _vec2.x;
+        y += _vec2.y;
+    }
+}
+
+v2 = new Vector2(10, 10);
+```
+
+GML _script_ files now requires one or more function definitions
+
+```gml
+// in move script
+function move(spd, dir)
+{
+    speed = spd;
+    direction = dir;
+}
+
+```
+
+## Library Functions
+
+- Prefer `instance_create_layer()` over deprecated `instance_create()`
+
+# Running / debugging games
+
+To help users debug and play games you can make use of:
+
+```
+npx @gamemaker/gm-cli compile --errors-only
+npx @gamemaker/gm-cli run --errors-only
+```
diff --git a/test-game/options/linux/options_linux.yy b/test-game/options/linux/options_linux.yy
new file mode 100644
index 0000000..704fafc
--- /dev/null
+++ b/test-game/options/linux/options_linux.yy
@@ -0,0 +1,26 @@
+{
+  "$GMLinuxOptions": "",
+  "%Name": "Linux",
+  "name": "Linux",
+  "option_linux_allow_fullscreen": false,
+  "option_linux_disable_sandbox": false,
+  "option_linux_display_cursor": true,
+  "option_linux_display_name": "test-game",
+  "option_linux_display_splash": false,
+  "option_linux_enable_steam": false,
+  "option_linux_homepage": "http://www.yoyogames.com",
+  "option_linux_icon": "${base_options_dir}/linux/icons/64.png",
+  "option_linux_interpolate_pixels": true,
+  "option_linux_long_desc": "",
+  "option_linux_maintainer_email": "",
+  "option_linux_resize_window": false,
+  "option_linux_scale": 0,
+  "option_linux_short_desc": "",
+  "option_linux_splash_screen": "${base_options_dir}/linux/splash/splash.png",
+  "option_linux_start_fullscreen": false,
+  "option_linux_sync": true,
+  "option_linux_texture_page": "2048x2048",
+  "option_linux_version": "1.0.0.0",
+  "resourceType": "GMLinuxOptions",
+  "resourceVersion": "2.0"
+}
diff --git a/test-game/options/mac/options_mac.yy b/test-game/options/mac/options_mac.yy
new file mode 100644
index 0000000..758c5bc
--- /dev/null
+++ b/test-game/options/mac/options_mac.yy
@@ -0,0 +1,38 @@
+{
+  "$GMMacOptions": "",
+  "%Name": "macOS",
+  "name": "macOS",
+  "option_mac_allow_fullscreen": false,
+  "option_mac_allow_incoming_network": false,
+  "option_mac_allow_outgoing_network": false,
+  "option_mac_apple_sign_in": false,
+  "option_mac_app_category": "Games",
+  "option_mac_app_id": "com.company.game",
+  "option_mac_arm64": true,
+  "option_mac_build_app_store": false,
+  "option_mac_build_number": 0,
+  "option_mac_copyright": "",
+  "option_mac_disable_sandbox": false,
+  "option_mac_display_cursor": true,
+  "option_mac_display_name": "test-game",
+  "option_mac_enable_retina": false,
+  "option_mac_enable_steam": false,
+  "option_mac_icon_png": "${base_options_dir}/mac/icons/1024.png",
+  "option_mac_installer_background_png": "${base_options_dir}/mac/splash/installer_background.png",
+  "option_mac_interpolate_pixels": true,
+  "option_mac_menu_dock": false,
+  "option_mac_min_version": "10.10",
+  "option_mac_output_dir": "~/gamemakerstudio2",
+  "option_mac_resize_window": false,
+  "option_mac_scale": 0,
+  "option_mac_signing_identity": "Developer ID Application:",
+  "option_mac_splash_png": "${base_options_dir}/mac/splash/splash.png",
+  "option_mac_start_fullscreen": false,
+  "option_mac_team_id": "",
+  "option_mac_texture_page": "2048x2048",
+  "option_mac_version": "1.0.0.0",
+  "option_mac_vsync": true,
+  "option_mac_x86_64": true,
+  "resourceType": "GMMacOptions",
+  "resourceVersion": "2.0"
+}
diff --git a/test-game/options/main/options_main.yy b/test-game/options/main/options_main.yy
new file mode 100644
index 0000000..1431894
--- /dev/null
+++ b/test-game/options/main/options_main.yy
@@ -0,0 +1,29 @@
+{
+  "$GMMainOptions": "v5",
+  "%Name": "Main",
+  "name": "Main",
+  "option_allow_instance_change": false,
+  "option_audio_error_behaviour": false,
+  "option_author": "",
+  "option_collision_compatibility": false,
+  "option_copy_on_write_enabled": false,
+  "option_draw_colour": 4294967295,
+  "option_gameguid": "697ab10f-91f0-499e-83c3-b7855e1aa10d",
+  "option_gameid": "0",
+  "option_game_speed": 60,
+  "option_legacy_json_parsing": false,
+  "option_legacy_number_conversion": false,
+  "option_legacy_other_behaviour": false,
+  "option_legacy_primitive_drawing": false,
+  "option_mips_for_3d_textures": false,
+  "option_remove_unused_assets": true,
+  "option_sci_usesci": false,
+  "option_spine_licence": false,
+  "option_steam_app_id": "0",
+  "option_template_description": null,
+  "option_template_icon": "${base_options_dir}/main/template_icon.png",
+  "option_template_image": "${base_options_dir}/main/template_image.png",
+  "option_window_colour": 255,
+  "resourceType": "GMMainOptions",
+  "resourceVersion": "2.0"
+}
diff --git a/test-game/options/windows/options_windows.yy b/test-game/options/windows/options_windows.yy
new file mode 100644
index 0000000..89b5d48
--- /dev/null
+++ b/test-game/options/windows/options_windows.yy
@@ -0,0 +1,38 @@
+{
+  "$GMWindowsOptions": "v2",
+  "%Name": "Windows",
+  "name": "Windows",
+  "option_windows_allow_fullscreen_switching": false,
+  "option_windows_borderless": false,
+  "option_windows_company_info": "YoYo Games Ltd",
+  "option_windows_copyright_info": "",
+  "option_windows_copy_exe_to_dest": false,
+  "option_windows_d3dswapeffectdiscard": false,
+  "option_windows_description_info": "A GameMaker Game",
+  "option_windows_disable_sandbox": false,
+  "option_windows_display_cursor": true,
+  "option_windows_display_name": "test-game",
+  "option_windows_enable_steam": false,
+  "option_windows_executable_name": "test-game.exe",
+  "option_windows_icon": "${base_options_dir}/windows/icons/icon.ico",
+  "option_windows_installer_finished": "${base_options_dir}/windows/installer/finished.bmp",
+  "option_windows_installer_header": "${base_options_dir}/windows/installer/header.bmp",
+  "option_windows_interpolate_pixels": true,
+  "option_windows_license": "${base_options_dir}/windows/installer/license.txt",
+  "option_windows_nsis_file": "${base_options_dir}/windows/installer/nsis_script.nsi",
+  "option_windows_product_info": "test-game",
+  "option_windows_resize_window": false,
+  "option_windows_save_location": 0,
+  "option_windows_scale": 0,
+  "option_windows_sleep_margin": 10,
+  "option_windows_splash_screen": "${base_options_dir}/windows/splash/splash.png",
+  "option_windows_start_fullscreen": false,
+  "option_windows_steam_use_alternative_launcher": false,
+  "option_windows_texture_page": "2048x2048",
+  "option_windows_use_raw_mouse": false,
+  "option_windows_use_splash": false,
+  "option_windows_version": "1.0.0.0",
+  "option_windows_vsync": true,
+  "resourceType": "GMWindowsOptions",
+  "resourceVersion": "2.0"
+}
diff --git a/test-game/rooms/room1/room1.yy b/test-game/rooms/room1/room1.yy
new file mode 100644
index 0000000..80d57c5
--- /dev/null
+++ b/test-game/rooms/room1/room1.yy
@@ -0,0 +1,234 @@
+{
+  "$GMRoom": "v1",
+  "%Name": "room1",
+  "creationCodeFile": "",
+  "inheritCode": false,
+  "inheritCreationOrder": false,
+  "inheritLayers": false,
+  "instanceCreationOrder": [],
+  "isDnd": false,
+  "layers": [
+    {
+      "$GMRInstanceLayer": "",
+      "%Name": "Instances",
+      "depth": 0,
+      "effectEnabled": true,
+      "effectType": null,
+      "gridX": 16,
+      "gridY": 16,
+      "hierarchyFrozen": false,
+      "inheritLayerDepth": false,
+      "inheritLayerSettings": false,
+      "inheritSubLayers": true,
+      "inheritVisibility": true,
+      "instances": [],
+      "layers": [],
+      "name": "Instances",
+      "properties": [],
+      "resourceType": "GMRInstanceLayer",
+      "resourceVersion": "2.0",
+      "userdefinedDepth": false,
+      "visible": true
+    },
+    {
+      "$GMRBackgroundLayer": "",
+      "%Name": "Background",
+      "animationFPS": 15.0,
+      "animationSpeedType": 0,
+      "colour": 4278190080,
+      "depth": 100,
+      "effectEnabled": true,
+      "effectType": null,
+      "gridX": 32,
+      "gridY": 32,
+      "hierarchyFrozen": false,
+      "hspeed": 0.0,
+      "htiled": false,
+      "inheritLayerDepth": false,
+      "inheritLayerSettings": false,
+      "inheritSubLayers": true,
+      "inheritVisibility": true,
+      "layers": [],
+      "name": "Background",
+      "properties": [],
+      "resourceType": "GMRBackgroundLayer",
+      "resourceVersion": "2.0",
+      "spriteId": null,
+      "stretch": false,
+      "userdefinedAnimFPS": false,
+      "userdefinedDepth": false,
+      "visible": true,
+      "vspeed": 0.0,
+      "vtiled": false,
+      "x": 0,
+      "y": 0
+    }
+  ],
+  "name": "room1",
+  "parent": {
+    "name": "test-game",
+    "path": "test-game.yyp"
+  },
+  "parentRoom": null,
+  "physicsSettings": {
+    "inheritPhysicsSettings": false,
+    "PhysicsWorld": false,
+    "PhysicsWorldGravityX": 0.0,
+    "PhysicsWorldGravityY": 10.0,
+    "PhysicsWorldPixToMetres": 0.1
+  },
+  "resourceType": "GMRoom",
+  "resourceVersion": "2.0",
+  "roomSettings": {
+    "Height": 768,
+    "inheritRoomSettings": false,
+    "persistent": false,
+    "Width": 1366
+  },
+  "sequenceId": null,
+  "views": [
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    },
+    {
+      "hborder": 32,
+      "hport": 768,
+      "hspeed": -1,
+      "hview": 768,
+      "inherit": false,
+      "objectId": null,
+      "vborder": 32,
+      "visible": false,
+      "vspeed": -1,
+      "wport": 1366,
+      "wview": 1366,
+      "xport": 0,
+      "xview": 0,
+      "yport": 0,
+      "yview": 0
+    }
+  ],
+  "viewSettings": {
+    "clearDisplayBuffer": true,
+    "clearViewBackground": false,
+    "enableViews": false,
+    "inheritViewSettings": false
+  },
+  "volume": 1.0
+}
diff --git a/test-game/test-game.yyp b/test-game/test-game.yyp
new file mode 100644
index 0000000..d67d4a0
--- /dev/null
+++ b/test-game/test-game.yyp
@@ -0,0 +1,53 @@
+{
+  "$GMProject": "v1",
+  "%Name": "test-game",
+  "AudioGroups": [
+    {
+      "$GMAudioGroup": "v1",
+      "%Name": "audiogroup_default",
+      "exportDir": "",
+      "name": "audiogroup_default",
+      "resourceType": "GMAudioGroup",
+      "resourceVersion": "2.0",
+      "targets": -1
+    }
+  ],
+  "configs": {
+    "children": [],
+    "name": "Default"
+  },
+  "defaultScriptType": 1,
+  "Folders": [],
+  "ForcedPrefabProjectReferences": [],
+  "IncludedFiles": [],
+  "isEcma": false,
+  "LibraryEmitters": [],
+  "MetaData": {},
+  "name": "test-game",
+  "resources": [{ "id": { "name": "room1", "path": "rooms/room1/room1.yy" } }],
+  "resourceType": "GMProject",
+  "resourceVersion": "2.0",
+  "RoomOrderNodes": [
+    { "roomId": { "name": "room1", "path": "rooms/room1/room1.yy" } }
+  ],
+  "templateType": null,
+  "TextureGroups": [
+    {
+      "$GMTextureGroup": "",
+      "%Name": "Default",
+      "autocrop": true,
+      "border": 2,
+      "compressFormat": "bz2",
+      "customOptions": "",
+      "directory": "",
+      "groupParent": null,
+      "isScaled": true,
+      "loadType": "default",
+      "mipsToGenerate": 0,
+      "name": "Default",
+      "resourceType": "GMTextureGroup",
+      "resourceVersion": "2.0",
+      "targets": -1
+    }
+  ]
+}
diff --git a/test-game/test-game.zip b/test-game/test-game.zip
new file mode 100644
index 0000000..8102357
Binary files /dev/null and b/test-game/test-game.zip differ