Full list of all 22 Escape Sequence achievements worth 2,000 gamerscore. It takes around 0.5-1 hour to unlock all of the achievements in the base game.
The base game contains 17 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 5 achievements worth 1,000 Gamerscore.
Completed all 15 levels!
Completed level 15
Completed level 14
Completed level 13
Completed level 12
Completed level 11
Completed level 10
Completed level 9
Completed level 8
Completed level 7
Completed level 6
Completed level 5
Completed level 4
Completed level 3
Completed level 2
Completed level 1
Had a second thought
Completed level 20
Completed level 19
Completed level 18
Completed level 17
Completed level 16