Here is the full list of all 30 101 Ways to Die achievements.
Discover all 101 WTDs
Completed Sector Zero Laboratories
Earned three stars in all Laboratories in every Sector
Completed all Sectors
Claim your first 1000 victims
Kill a Splatt whilst it's stunned
50 Splatts killed in a Lava Pit
Completed Bio Zone Laboratories
Amassed 100 Stars
Discover 50 WTDs
10 Cakes completely consumed
100 Splatts impaled on Spikes
Kill a Tank, Alpha and a Rapid within one second
Flatten 50 Splatts with a Boulder
Completed Control Room Laboratories
Spill 1000 litres of blood
Claim your first 101 victims
Kill 50 Splatts with the Cannon
Claim your first 50 victims
NCompleted Basement Laboratories
Achieved a three star rating for all Laboratories in any Sector
Complete tutorials
Complete a Basement level
Kill your first Splatt
Discover your first WTD
Discover 10 WTDs
First combo
Achieve a x4 combo
Completed all Graduate and Master objectives in a Laboratory
Achieved your first Three Star rating in a lab