I was "taking a walk" on the game category in Snap package store https://snapcraft.io, it was only for fun and spend free time.
And I found this game, TheTravelingFox. I don't know nothing about it...but it seems awesome, it is coded in Panda3D and it is free software (and I think that the assets are free too).
Do you know this game? I haven't time to install it (maybe the next weekend) for saying anything about the gameplay and performance.