Some time ago I discovered a game called Dwarf Fortress. This game gives you a world, a bunch of dwarfs, some equipment
and you start helping these dwarfs to survive in some dangerous conditions. This game runs on desktop and has old
fashion (something like 80ish) interface with view from the top map, and all objects in the game are represented with ASCII
symbols. There are some mods for graphics (I,ve seen even 2.5D written in Java), but today when you look at, for example,
minecraft you want more.
At this point you probably think why I mentioned voxels, right?