This game needs more types of stone.
Agreed. 10 surface biomes, and only one type of stone, very boring when mining.
This game also needs more plant life, perhaps a vine plant that grows in rainforests, (or anywhere hot and wet) which can grow onto any block and connect like redstone dust does to itself, which can overgrow onto your buildings after a long time. It could be broken into either a vine seed or usable vine, which does not grow, but can be used to make ladders.