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