To get actual data in the application you need to upload the database to the emulator (or real device)

to do this follow these steps:

1. open the project in android studio
2. run the application once on an emulator or device
3. open the device file explorer tab
4. select the correct device
5. go the the follow folder data -> data -> <project_name>(com.example.endproject) -> databases
6. right click on the directory databases and select upload
7. select the GamesDatabase.db file that was delivered with the project
8. click on OK

Now the the database has been updated with the correct data.
If you click the FAB button in the application you will be able to see the data.
When clicking on one of the items you will go to a screen with more info about said item