Steam Game not running

Le Slo


So I've been trying to upload my to Steam and after some attempts and some small victories, I'm in a dead end, not finding anything on google, steam or yoyo documentation.

I have achieved to upload the game to steam following this two tutorials:
The game appears in my library and the content is successfully downloaded.

The problem is that the game doesn't execute nor clicking the executable generated by gamemaker (I guess this makes sense since it's integrated to Steam API) nor opening it from steam. However the game runs perfectly fine when run inside GMS2, I can even use shift+tab to see all the steam stuff.

I'm I doing something wrong? Can anyone help me?

Thank you very much in advance!