Here is the full list of all 43 Tetris Effect: Connected achievements.
Participate in a Weekly Ritual.
Discover a land of golden Tetriminos.
Earn 100 All Clears.
Earn 10 T-Spins.
Enter the Zone for more than 10 minutes total.
Earn 50 Back-to-Backs.
Earn 10 All Clears.
Play Marathon, Ultra and Sprint modes.
Clear Ambient: Sea, Wind, and World modes.
Earn 100 Tetris Line Clears.
Complete all Areas of Journey Mode.
Witness a meteor shower in Countdown mode.
Clear 1,000 Infected Blocks in Purify mode.
Clear 1000 Lines.
Achieve Player Level 10.
Complete Area 4 of Journey Mode.
Clear 12 Lines or more in a single Zone visit.
Earn 10 Tetris Line Clears.
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Complete Area 1 of Journey Mode.
Clear 100 Lines.
Activate the Zone mechanic.
Earn all achievements.
Achieve Player Level 30.
Achieve Player Level 50.
Achieve Player Level 100.
Clear 10,000 Lines.
Rotate Tetriminos 100,000 times.
Earn 500 Tetris Line Clears.
Earn 500 Back-to-Backs.
Earn 10 Back-to-Backs in a row.
Earn 100 T-Spins.
Earn a 10 Combo.
Earn a 15 Combo.
Clear 18 Lines or more in a single Zone visit.
Clear 1000 Lines total across all Zone visits.
Complete all Areas of Expert Journey Mode.
Earn A Rank or higher in all Areas of Journey Mode.
Earn A Rank or higher in all Effect Modes.
Earn your first SS Rank.
Earn SS Rank 10 times.
Earn S Rank everywhere possible.
Earn 100 avatars.