Here is the full list of all 39 Blacken Slash achievements.
Install a part in every slot.
Clear level 25.
Save a part in the archive.
Die. That's it. That's the achievement.
Clear level 50.
Clear level 100.
Clear level 50 in ladder mode.
Clear level 100 in ladder mode.
Play 100 runs.
Augment a variable to the max.
Reroll variables on a single item 25 times.
Augment 100 times.
Beat level 25+ on your first turn.
Hit seven enemies with one damage script.
Defeat an enemy with a single attack in level 25+.
Defeat three enemies with a single attack.
Survive 10 hits in one turn.
Beat a level without moving.
Finish a level with health below 5%.
Install a legendary or set part in every slot.
Start a run fully equipped from the archive.
Fully augment every variable on a part.
Save 25k kernels.
Salvage 1000 parts.
Beat level 1-25 using only common parts.
Install a complete set.
Find 100 legendary or set parts.
Beat level 1-25 without getting hit.
Beat level 1-25 without using damage scripts.
Reach the maximum amount of this meta bonus.
Unlock all meta mastery achievements.
Find every legendary and set part.
Unlock every other achievement.