Here is the full list of all 37 Cyber Defense achievements.
Survive 50 waves on any stage
Survive 100 waves in any stage.
get 10'000 bits
Kill 1000 invaders.
Survive 35 waves without getting hurt in any stage.
Survive 50 waves without getting hurt in any stage.
Survive 20 waves without getting hurt in any stage.
Buy 8 Upgrades
Will never get old.
Build 4 Towers.
Go on... Take it! all yours. The first one is always free.
Get an A.
Get an S in any stage.
Get an SS in any stage
Get an SSS in any stage.
Get 80'000 bits
Get 1'000'000 bits
Get 8.000.000 bits
Beat the last stage with an A
Beat the last stage with an A in normal, puzzle and Extreme.
Buy 128 Upgrades
Buy 420 upgrades
Survive 200 waves in any stage.
Survive 500 waves in any stage.
Survive 30 minutes in any stage.
Play 45 minutes in total. Congrats! you are above average!!
Build 100 towers on any stage.
Build 1000 Towers. Less than a Kibi Builder.
Build 42069 towers. So Edgy!
Unbuild one tower.
Unbuild 33 towers in one stage.
Unbuild 101 towers.
Unbuild 1337 towers.
Kill 9001 invaders.
Heal 1000 health points.
Heal 100'000 health points.
Survive 99 waves without getting hurt in any stage.