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