Here is the full list of all 27 Infinite Tao achievements.
Spend 600 Spirit Stones in a single game
Spend 1000 Spirit Stones in a single game
Get a 3-star Magic Treasure
Get a 3-star orange Magic Treasure
Get three 3-star orange Magic Treasure
First pass
Three passes
Ten Passes
Kill 20000 Enemies
Kill 100000 Enemies
Kill 500000 Enemies
Pass Blue Dream Swamp With Golden Immortality
Pass Blue Dream Swamp With Legendary Immortality
Pass Purple Ghost Swamp With Golden Immortality
Pass Purple Ghost Swamp With Legendary Immortality
Pass Void Junction With Golden Immortality
Pass Void Junction With Legendary Immortality
Die the 1st time
Die 5 times
Die 50 times
Kill the final boss within 20s
Kill the final boss within 10s
Accumulated 20000 Karma
Accumulated 200000 Karma
Accumulated 2000000 Karma
Spend 1500 Spirit Stones in a single game