Complete the indicated task to unlock the achievement.

Achievement	How to unlock
And it goes down!	Get rid of the Gunship, once and for all!
Explorer	Find the hidden puzzle crate in the first mission.
First Contact	Reach Nova outpost.
GlobalView News	Find all tablets in Aurora Outpost.
Life and death decision	Make sure Jay survives the game.
Nebula Hunter	Destroy all Nebula drones in the desert.
Supplies	Find supplies for Nova outpost.
They're gone	Finish the game.
Tower Hacker	Hack all three towers in mission 2.
Unscathed	Get through the swamp chase without losing any health. You can lose shield though.