Full list of all 57 Size Matters achievements. It takes around 0-1 hour to unlock all of the achievements in the base game on Windows.
The base game contains 6 achievements, and there are 4 DLC packs containing 51 achievements.
Complete a round on "Low Gravity" mode!
Complete a round on "Tiny" mode
Find all ingredients in 30 seconds or faster!
Consume one cupcake!
Check out the HUMAN SKELETON!
Win the round when you have reverted 5 or more ingredients!
Open drawers and cabinets more than 100 times!
Use Chemical Processor for more than 10 minutes!
Use Chemical Reverter for more than 10 minutes!
Use Code Combiner for more than 10 minutes!
Use Microwave for more than 10 minutes!
Use Restorer for more than 10 minutes!
Find all pickups in Laboratory 1!
Find all pickups in Laboratory 2!
Find all pickups in Laboratory 3!
Find all pickups in Laboratory 4!
Find ALL pickups in ALL laboratories!
Break all plates and mugs in the Kitchen!
Find love in the kitchen!
Shrink until you're too small!
Win 10 or more rounds!
Find all pickups in Laboratory 5!
Find all pickups in Laboratory 6!
Spend more than 5 seconds in air without touching ground
Enlarge 3 or more objects in a single round!
Win a round without picking up any object other than ingredients
Win at least one round on all available laboratories!
Open drawers and cabinets more than 1000 times!
Spend more than 1 minute in the play menu!
Empty out the fridge!
Successfully use the Restorer!
Open the same drawer 10 times!
Win a round in under 7 minutes!
Find an alien creature!
Enter a correct code into the Code Combiner!
Maybe try being a bit more careful? :(
Open all drawers in the laboratory at least once!
Finish the level without jumping!
Finish the level without formulas and ingredients touching the floor!
Finish the level with 1.5 meters height left or more!
Get inside the green plastic bin!
Get hit by ~microwaves~!
Finish the level with all "Processing Time" sliders to the max!
Complete a round on normal difficulty
Complete a round on hard difficulty!
Complete a round on crazy difficulty!
Have 20 concurrent water flasks!
Complete a round on beginner difficulty! Baby Steps!
Save yourself without having to use the Reverter!
When breakable flasks are enabled, break at least one at very high speed!
Destroy the TV in Laboratory 3!