Spend 15 minutes on one level.
Spend 1 hour in Sandbox.
Spend 30 minutes in Sandbox without resetting or exiting.
Witness a flying saucer pass by.
Play a custom level.
Discover 25 types of Cell.
Discover 50 types of Cell.
Discover 75 Types of Cell.
Discover 102 Types of Cell.
Zap a Creature or Critter.
Get every other achievement.
Use the Eyedropper in Sandbox.
Power a heat sensor with a laser.
Complete the Basics Levelpack.
Complete the Garden Levelpack.
Complete the Kitchen Levelpack.
Complete the Temple Levelpack.
Complete the XSpace Levelpack.
Paint a cell in Sandbox.
Paint a duplicator cell.
Open a level in Sandbox.
Save a scene in Sandbox.
Read every Grimoire entry.
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