Here is the full list of all 46 The Lightbringer achievements.
Lose life by falling into the water
Die three times
Die seven times
Die thirty times
Restart the level
Destroy 100 slimes in total
Destroy 1000 slimes in total
Fall 10 times in to the water
Fall 20 times into the abyss
Earn the perfect score on 8 levels
Earn the perfect score on 12 levels
Earn the perfect score on 15 levels
Kill slime by TNT explosion
Complete level in less than 4 minutes
Collect 20 HP potions
Dodge 300 times
Jump on 50 slimes
Use double jump 500 times
Complete level collecting only one light
Destroy 20 items in total (crates, vases)
Destroy 100 items in total (crates, vases)
Defeat Sister without losing HP
Defeat Sister
Throw boomerang 100 times
Go into aim stance
Complete level without losing HP
Pick up 100 items
Kill slime in aiming mode
Visit 30 houses
Visit 20 dungeons
Kill the dragon
Kill the dragon without losing HP
Defeat the Golem
Defeat the Golem without losing HP
Defeat the temple guardian
Defeat the temple guardian without losing HP
Destroy 2 slimes with one throw
Destroy 3 slimes with one throw
Gather all lights on all levels
Gather all crystals on all levels
Hit all story bells
Complete a level without using aim mode
Collect all lights on chapter 1
Collect all lights on chapter 2
Collect all lights on chapter 3