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