VoxelSpace – Terrain rendering algorithm in less than 20 lines of code

Related:

https://github.com/topics/voxel-engine

https://github.com/topics/voxel

https://en.wikipedia.org/wiki/Voxel

I remember this game, it was great. The movement was fast enough that it didn't feel very pixelated, although one you had played it for a while the small size of the map began to feel somewhat constrictive.