Here is the full list of all 46 2112TD: Tower Defense Survival achievements.
Reach experience level 10
Reach experience level 20
Reach experience level 30
Reach experience level 40
Reach experience level 50
Complete the main campaign on normal mode
Complete the main campaign on hard mode
Complete the main campaign on nightmare mode
Hold the lines in survival mode for 15 minutes on the Moon Communications Base
Hold the lines in survival mode for 30 minutes on any map
Kill 100 zombies
Kill 1000 zombies
Kill 500,000 zombies
Kill 1000 enemies
Kill 100,000 enemies
Kill 750,000 enemies
Kill 100 elite enemies
Kill 1000 elite enemies
Kill 100,000 elite enemies
Deploy 200 turret charged attacks
Complete Uranus UERI using only machine gun turrets on hard mode
Complete Earth's Defence Platform without firing the drone rockets
Kill a meat cloud with the lightning turret discharge
Kill two goliaths in a single airstrike deployment
Kill any boss using the railgun plasma charged attack
Complete the Aftermath Part 1 missions on normal mode
Complete the Aftermath Part 1 missions on hard mode
Complete the Aftermath Part 1 missions on nightmare mode
Call 100 waves early
Call 500 waves early
Reach experience level 60
Reach experience level 70
Reach experience level 80
Reach experience level 90
Reach experience level 100
Complete Neptune Prison using only flame thrower turrets on nightmare mode
Complete Return to the Moon Part 1 using only plasma turrets on hard mode
Complete Mars Terraforming Plant calling 8 waves early on nightmare mode
Hold the lines in survival mode for 25 minutes on any Aftermath mission
Hold the lines in survival mode for 35 minutes on any Aftermath mission
Complete Return to Mars calling 5 waves early
Complete the Aftermath Part 2 missions on nightmare mode
Complete the Aftermath Part 2 missions on normal mode
Complete the Aftermath Part 2 missions on hard mode
Complete Return To Mars without the terraforming structure taking any damage
Upgrade any tower to its maximum level when playing survival mode