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