Full list of all 26 Tachyon Project achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
You need to finish the first world
Finish the second world of the game
Finish the third world
Finish level 4
Complete level 5
Complete Level 6
Complete Level 7
Complete Level 8
Complete Level 9
Complete level 10
Destroy 100 Bull enemies
Destroy 10000 enemies
Destroy 500 enemies
Destroy 2500 enemies
Destroy 100 Shield bearer enemies
Destroy 2500 enemies with the standard weapon
Destroy 2500 enemies with the machine gun
Destroy 2500 enemies with the shotgun
Destroy 2500 enemies using missiles
Destroy 2500 enemies using the bomb launcher weapon
Destroy 2500 enemies using the laser weapon
Reach 1,000,000 points accummulated
Reach 10,000,000 points accumulated
Destroy 100 Snake enemies
Destroy 2000 Smasher enemies
Destroy 200 Constructor Enemies