PlayStation

One Tank Army

Finish all of Alien World on Maniacal Difficulty with 100% or higher overall accuracy (level select allowed)

Achievement in Space Invaders

50Points

0Nobody has unlocked it yet

— Of this game's players

No dataRarity

Want to unlock “One Tank Army”?

Play Space Invaders on Etera, track your progress and climb the rankings.

Get Etera See all achievements