This feature is highly inconsistent for me when used on my phone or Google home and I haven't gotten it to work for Outcasters yet. All it ever does is play youtube videos of the game or music from the game I request.
Are there plans to make this functionality work a little better?
Edit, I've Also used "launch game" and "play game" with similar results.
I dont use a voice assistant, but is it worth throwing the word 'Stadia' into that command.
Okay Google, Start Stadia and play outcasters on chomecast.
No idea if that would work, but giving the command Stadia may send the recognition down the right path!
Either way good luck.