Here is the full list of all 32 Blocks That Matter achievements.
Complete all the Chocolate Update levels
Playtest a level you’ve created with the ingame level editor
Complete 20 Bonus Levels
Perform the longest possible fall in the game
Complete "An Ice Glitch" saving 4 blocks of sand
Complete 10 Bonus Levels
Complete "The Invader" without having burned a wood block
Collect 40 Stars
Complete "The Underground Rescue" with 100%
Collect 40 Blocks That Matter
Collect 3 BTMs made by french developers
Watch the credits until the end
Free Alexey and Markus
Upgrade Tetrobot so he can drill crystal blocks
Collect 20 Stars
Avoid the death of the fire slime in "Collateral damage"
Collect 20 Blocks That Matter
Collect a Green Star
Draw all possible tetrominoes shapes in puzzle mode
Destroy 4 lines of 8 blocks at the same time in "Manual Tetris"
Collect the 3 BTMs that inspired this game
Collect 10 Blocks That Matter
Upgrade Tetrobot so he can drill metal blocks
Collect 10 Stars
Upgrade Tetrobot so he can destroy lines
Play a community level and rate it
Join the Blocks That Matter Steam group
Squash a slime with a falling block
Die by kissing a slime
Experience the effect of the nanoreset explosion
Collect your very first Blocks That Matter
Start and finish "The Underground Rescue" in a single game session