Here is the full list of all 52 Faptastic Journey achievements.
Come to another world!
Complete 4 missions
Complete 8 missions
Complete 12 missions
Complete 16 missions
Complete 20 missions
Upgrade 2 passive skills to level 1
Upgrade 4 passive skills to level 2
Upgrade 6 passive skills to level 3
Learn 2 active skills
Learn 4 active skills
Learn 6 active skills
Upgrade 1 active skill to level 10
Upgrade 2 active skills to level 10
Upgrade 3 active skills to level 10
Upgrade 4 active skills to level 10
Cast Ice Age the first time
Cast Ice Age 3 times
Cast Resist the first time
Cast Resist 3 times
Cast Arcane Protection the first time
Cast Arcane Protection 3 times
Successfully fuse a Dice-4
Successfully fuse a Dice-5
Upgrade Lightning to level 3
Upgrade Lightning to level 5
Upgrade Poison to level 3
Upgrade Poison to level 5
Upgrade Ice to level 3
Upgrade Ice to level 5
Upgrade Fire to level 3
Upgrade Fire to level 5
Upgrade Earth to level 3
Upgrade Earth to level 5
Gain the Achemist power from Laura
Get the essence of Gaia
Melt the cold heart of Ariel
Befriend Elsa the hard way
Destroy the pride of Lisa
Resolve the grudge between Lisa and Elsa
Hold the Fire Spirit and ease Lisa's pain
Return the original world to help Tibal
Return the original world with badass powers