There are a maximum of 11 Osmos achievements worth 391
959 tracked gamers have this game, 32 have completed it (3.34%)
Black Hole Sun25
Collapse the system in level F2-3 by feeding the Attractor.
Unlocked by 160 tracked gamers (17% - TSA Ratio = 2.45)
Do you have a question about this achievement? Please post it in the Osmos Forum