no this is a new game my son created it its called watch party
Viewing post in having trouble playin a game
There is no verification on Itch's side. Games work or do not work, as uploaded by the developer.
That does not change, even if you use the Itch app.
So maybe ask the developer if that game runs. Talking about the deployment version. The one uploaded. Not his development version.
Depending on the engine, there might be a log file in the game's directory telling you what went wrong.