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.
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Take a shower!
You saved yourself in the last minute!
You mixed the wrong ingredients, luckily nothing blew up!
Use Chemical Processor successfully for the first time ever!
A thanks from developer for playing Size Matters!
Use Chemical Reverter for more than 10 minutes!
Use Restorer for more than 10 minutes!
Check out the HUMAN SKELETON!
Win the round when you have reverted 5 or more ingredients!
Use Microwave for more than 10 minutes!
Complete a round on "Tiny" mode
Consume one cupcake!
Complete a round on "Low Gravity" mode!
Use Code Combiner for more than 10 minutes!
Use Chemical Processor for more than 10 minutes!
Open drawers and cabinets more than 100 times!
Find all ingredients in 30 seconds or faster!
Open drawers and cabinets more than 1000 times!
Find an alien creature!
Win 10 or more rounds!
Find ALL pickups in ALL laboratories!
Find all pickups in Laboratory 5!
Win at least one round on all available laboratories!
Find all pickups in Laboratory 6!
Shrink until you're too small!
Find all pickups in Laboratory 1!
Find all pickups in Laboratory 3!
Break all plates and mugs in the Kitchen!
Empty out the fridge!
Maybe try being a bit more careful? :(
Find love in the kitchen!
Enlarge 3 or more objects in a single round!
Find all pickups in Laboratory 2!
Find all pickups in Laboratory 4!
Open all drawers in the laboratory at least once!
Open the same drawer 10 times!
Spend more than 5 seconds in air without touching ground
Spend more than 1 minute in the play menu!
Win a round without picking up any object other than ingredients
Successfully use the Restorer!
Win a round in under 7 minutes!
Enter a correct code into the Code Combiner!
Get hit by ~microwaves~!
Finish the level with all "Processing Time" sliders to the max!
Get inside the green plastic bin!
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!
Destroy the TV in Laboratory 3!
Complete a round on hard difficulty!
Have 20 concurrent water flasks!
When breakable flasks are enabled, break at least one at very high speed!
Complete a round on crazy difficulty!
Complete a round on normal difficulty
Save yourself without having to use the Reverter!
Complete a round on beginner difficulty! Baby Steps!