Full list of all 16 Sizeable achievements. It takes around 2-3 hours to unlock all of the achievements in the base game on Windows.
The base game contains 10 achievements, and there are 5 DLC packs containing 6 achievements.
Find the Cheshire cat!
Find the special halloween level that is available from 28th of October - 3th of November!
Find the special christmas level that is available from 21th of December - 31th of December!
Find the special Easter level that is available from the 1st of April - 12th of April!
Crack open all 17 eggs in the Easter level!
Finish every normal level in Sizeable!