Flax Engine – A true game changer (Game Engine)
flaxengine.com
flaxengine.com
Digging in deeper this appears to be the case, but they do have a Linux editor which makes them better from a Linux platform development standpoint than both Unreal Engine and Unity.
When I have some free time or there's a game jam on I'll try to build something in it.
“Has anyone made an actual game with this?”