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