Actually, I'm looking for suggestions. Dark Orbit looks like it might be good. Does anyone play it?
If you like Spiral Knights, you might also like this game.
I'm a fan of Helldivers. It features space knights assaulting a variety of factions on procedurally generated planets using guns, bombs and melee attacks.
Spiral Knights has a lot of different aspects that people latch onto. Helldivers, for instance, is strictly PvE. Someone might only enjoy the LD aspect of Spiral Knights and might instead be looking for something like Battlerite.
Meanwhile, neither game has anything to offer for costume-peddling auction house dwellers who like standing around in haven and chatting with strangers.
I can name quite a few games I've found to be VERY similar to Spiral Knights in many ways-
AdVenture Capitalist
Legend of Zelda - Ocarina of Time (or any really)
Dictator Game
Jackpot Magic Slots: Vegas Casino & Slot machines
Prom Dress Designer Games 3D
Dungeon, Inc
Harpooned: Japanese Cetacean Research Simulator
Slots Buffalo - Wild Vegas
Dollar Auction
Team Fortress 2
World of Fashion - Dress Up
Full House Casino - Free Slots
Pirate Game
DoubleU Casino - FREE Slots
Prom Dress Designer Games 3D
~Fezhor
End game is fashion knights. 100% similar to Spiral Knights.
Its has simple mechanics but its really fun.
Cave with Robots on miniclip.
Link: https://www.miniclip.com/games/cave-with-robots/en/#t-l-gs1-H