Here is the full list of all 39 Inkbound achievements.
Win a group run.
Win a run with 1,000 or more Kwillings.
Find the Opal Slab.
Reach level 50.
Heal another player.
Start a group run.
Defeat the Villain in a Daily Challenge.
Reach level 25.
Unlock a Trinket.
Defeat a Villain for the first time.
Reach level 10.
Die for for the first time.
Fully upgrade a Binding.
Equip enough Vestiges to fill your inventory.
Enter the Atheneum for the first time.
Win a Solo Run at Challenge Rank 10.
Win a Group Run at Group Challenge Rank 10.
Win a Solo Run at Season Challenge Rank 20.
Win a Group Run at Group Season Challenge Rank 20.
Win a run without ever moving in combat.
Complete all objectives in the Victory Board.
Win a run without acquiring any augments.
Win a run without acquiring any vestiges.
Defeat a Villain without defeating any other unit in that fight.
Win a run without taking any damage.
Win a run without drafting any bindings.
Win a run without collecting an Orb.
Complete all Aspect Quests.
Unmask the Unbound.
Free the Captive.
Collect the "Magic Threads".
Find the Gatekeeper and OHM.
Reach level 100.
Unlock all Trinkets.
Master 50 Vestiges.
Master 100 Vestiges.
Master all Vestiges.