That’s why you connect an arduino to the motherboards reset pin and load it with a program where it resets the system if it doesn’t receive an ACK signal over the usb connection every 10 minutes.
Eventually though the networking and apache stops working after around 150 days so you also have to make a script that resets the system after 30 minutes of not having network.
To me, Godot is the only game engine I would ever consider using. Unity is bad because you never know what shitty stuff they’ll do next. Unreal probably doesn’t work on Linux and unreal script sounds like a terrible idea. If I had to figure out all those extremely difficult math problems like angular velocities, quaternion math, rotation matrices and shit in an obscure programming language, I would stop to rethink my life choices. It’s already hard enough doing this in more widely used established languages even with decades of stackoverflow posts available.
Besides Godot, you can always make your own. Use a graphics library like orge or Irrlicht, a physics engine (reactphysics3d for example), something for sound like openAL and once you get them all glued together, you have a game engine.