Here is the full list of all 54 Spiral Knights achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Amass an Arsenal that includes a 5 star helmet, armor, shield, gun and bomb.
Unlock and fill every equipment slot.
Complete a Tier 3 expedition without having to revive.
Travel the entire Clockworks from depth 0 to depth 29 in a single expedition.
Travel the entire Clockworks from depth 0 to depth 29 in a single expedition without having to revive.
Pay a visit to Emberlight, the town of gremlin outcasts.
Complete a Tier 2 expedition without having to revive.
Pay a visit to Moorcraft Manor.
Complete a Tier 1 expedition without having to revive.
Reach the first Clockworks Terminal.
Alchemize 50 items.
Alchemize 25 items.
Amass 10 guns in your Arsenal.
Amass 10 shields in your Arsenal.
Amass 10 bombs in your Arsenal.
Amass 10 helmets in your Arsenal.
Amass 10 armors in your Arsenal.
Amass 5 bombs in your Arsenal.
Amass 5 shields in your Arsenal.
Alchemize a 5 star item.
Build an item to heat level 10.
Earn clearance to explore Tier 3 of the Clockworks.
Alchemize 10 items.
Alchemize a 2 star item.
Hit an opponent with a snowball in Lockdown.
Alchemize a 4 star item.
Alchemize 5 items.
Use 10 Remedy Capsules.
Defeat the Roarmulus Twins.
Revive a downed party member.
Power up a derelict Mecha Knight.
Amass 3 shields in your Arsenal.
Alchemize a 3 star item.
Defeat the Royal Jelly squatting in the Royal Jelly Palace.
Use 10 Health Capsules.
Earn clearance to explore Tier 2 of the Clockworks.
Amass 5 helmets in your Arsenal.
Amass 5 armors in your Arsenal.
Amass 10 swords in your Arsenal.
Defeat the fabled Snarbolax that lives deep within the Gloaming Wildwoods.
Amass 3 bombs in your Arsenal.
Obtain a Firecracker bomb.
Descend to the Core Terminal.
Defeat Lord Vanaduke in the heart of the Firestorm Citadel.
Revive yourself.
Amass 5 guns in your Arsenal.
Alchemize a 1 star item.
Amass 3 helmets in your Arsenal.
Amass 3 guns in your Arsenal.
Amass 5 swords in your Arsenal.
Cross the chasm into Haven.
Amass 3 swords in your Arsenal.
Amass 3 armors in your Arsenal.
Successfully reach the Rescue Camp.