Here is the full list of all 20 Relaxing VR Games: Mahjong achievements.
Collect 9 stars
Collect 486 stars
Collect 270 stars
Collect 180 stars
Collect 90 stars
Run into an unsolvable scenario
Run into five dead ends
Watch the credits
Shuffle 100 times
Undo a move, take another path and clear the board
Match seven pairs in under five seconds
Clear at least one board on two different locations
Relax for 5 minutes
Clear 162 boards
Clear 90 boards
Clear 60 boards
Clear 30 boards
Clear the tutorial
Match 1000 stones with the modern tileset
Match 1000 stones with the classic tileset