Here is the full list of all 42 Eremidia - there are Archivist's Curse achievements.
Find and defeat Herrscherschwert for the first time
Reach Curio Level 5 on any alleys
Find and defeat Revenant for the first time
Accumulate 5000 total damage taken
Accumulate 10000 total damage dealt
Accumulate 50 battle victories
Accumulate 2500 total damage taken
Accumulate 5000 total damage dealt
Accumulate 25 battle victories
Reach Curio Level 3 on any alleys
Accumulate 1000 total damage taken
Recover more than 500 health
Accumulate 10 battle victories
Finish battle in less than 1 turn
Defeat Book Creature for the first time
Accumulate 500 total damage dealt
Recover more than 50 health
Accumulate 100 total damage taken
Accumulate 1 battle victory
Accumulate 30000 total damage dealt
Recover more than 2500 health
Recover more than 5000 health
Collect all playable characters
Win Chessmaster's Match Round 1
Win Chessmaster's Match Round 2
Win Chessmaster's Match Round 3
Win Chessmaster's Match Round 4
Win Chessmaster's Match Round 5
Win Chessmaster's Match Round 6
Win Chessmaster's Match Round 7
Win Chessmaster's Match Round 8
Win Chessmaster's Match Round 9
Win Chessmaster's Match Round 10
Unlock access to all alleys
Reach Curio Level 10 on any alleys
Find and defeat Koranot for the first time
Find and defeat Netherdrake for the first time
Find and defeat Alraune for the first time
Find and defeat Rodos for the first time
Find and defeat Muro Lamentio for the first time
Find and defeat CSTRVM for the first time
Find and defeat Death for the first time