Wandering around aimlessly in an infinite 3D world is actually pretty fun!

You can try my Go + Vulkan game here: https://ldjam.com/events/ludum-dare/44/worked-to-death

There's also a writeup of the technical implementation here: https://ldjam.com/events/ludum-dare/44/worked-to-death/doing-ludum-dare-with-vulkan