Here is the full list of all 19 Sapper - there are Defuse The Bomb Simulator achievements.
Win without death
Defuse atomic bomb
Reach 3rd level of all chosen perks
Reach 6th experience level
Die 5 times in one game
Defuse your first mine in the game
Defuse 10 bombs
Reach 4th experience level
Get flashlight
Defuse your first dynamite in the game
Find THAT way to enter the mayor's office
Reach 3rd level of perk
Die for a first time
Collect at least 3 notes
Dismantle 20 objects
Survive 30 minutes without dying
Reach 2nd experience level
Hack something
Defuse your first bomb in the game