1) Sonar: something to tell you your depth, and maybe what's above and below you but that might be unfair.
2) generated ruins: Spore is has a randomly generated universe but it also has specific places, i was thinking the ruins would be generated X number of blocks away from your starting point.
3) Enemies try to break through walls: kinda self explanatory.
4) NPC ROBOT: It's something that's kinda primitive and would be a massive investment but you could tell it to auto mine and it will like collect wood or anything else you want it to.
2) generated ruins: Spore is has a randomly generated universe but it also has specific places, i was thinking the ruins would be generated X number of blocks away from your starting point.
3) Enemies try to break through walls: kinda self explanatory.
4) NPC ROBOT: It's something that's kinda primitive and would be a massive investment but you could tell it to auto mine and it will like collect wood or anything else you want it to.
Sorry still new here