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