Patch 2.0 introduced achivements to BetterGeo! Achievements gives you a goal in the game. It can be to find a mineral or to build an object, like the flue gas cleaner or the smeltery. Doing an achievement often unlocks several more. An example would be to find feldspar, then make a smelter. The next would be to refine a metal in the smeltery. After that the chain can continue with you buildin a flue gas cleaner for the smeltery etc.
All achievements can be seen by pressing B ingame. The achievement tree can be seen to the right.