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