Click to start. It creates a world wth random terrain. Instant and non-instant generation can be toggled. You can choose biomes and edit generated worlds. Number keys to change colors in edit mode. There are chunk-generation glitches so some chunks of stone are seen throughout the terrain sometimes. Trees and cacti in some biomes can grow on top of each other and also grow outside of the border so the generation may look odd sometimes.
Inspired by Minecraft. (Duh.) Song: Pigstep by Lena Raine