Here is the full list of all 30 Matris achievements.
Collect 100 10+ Blocks Extra Points Lines
Score 500 000 Points in 1 Combo
Complete 50+ Pieces Combo
Complete any stock Puzzle Level without using Lifelines
Win a Medal in 10 different Custom or Stock Combo levels
Win a Medal in 20 different Custom or Stock Combo levels
Win a Medal in 10 different Custom or Stock Puzzle levels
Win a Medal in 20 different Custom or Stock Puzzle levels
Complete all Stock Puzzle and Combo Levels
Win a Medal in 10 different Custom or Stock levels
Win a Medal in 20 different Custom or Stock levels
Win a Medal in 40 different Custom or Stock levels
Win a Gold Medal in 5 different Custom or Stock levels
Win a Gold Medal in 10 different Custom or Stock levels
Win a Gold Medal in 20 different Custom or Stock levels
Create & Publish a Custom Level
Create & Publish 5 Custom Levels
Create & Publish 10 Custom Levels
Destroy 10 000 Blocks
Place 5000 Pieces
Collect 50 20+ Blocks Extra Points Lines
Collect 30 full length Extra Points Lines
Complete 5 Custom Levels in Puzzle or Combo Mode
Complete 10 Custom Levels in Puzzle or Combo Mode
Complete 20 Custom Levels in Puzzle or Combo Mode
Score 2 000 000 in Free Mode
Score 2 000 000 in Time Attack
Use 1000 bonuses in Combo mode or Free Play
Use Lifelines 50 times in Puzzle Mode
Unlock all 29 Achievements