Character progress comes not through the improvement of personal statistics, but rather through upgrades to equipment. When they are not battling enemies or each other, knights train, shop, trade, and chat in Haven.

In addition to this player-versus-enemy mode, there are two optional player-versus-player modes: one that is similar to Clockworks play, and a Bomberman-like mini-game that differs substantially from the rest of the game. There are four main bosses, each with an alternate 'Shadow Lair' variant, and numerous mini-bosses. When exploring the Clockworks, knights cooperate to defeat crowds of enemies of various types, while dodging traps and solving simple puzzles. The player controls a single knight, and may play solo or with other players. In its gameplay, Spiral Knights is a top-down, third-person, real-time action-adventure game, comparable to The Legend of Zelda: Four Swords Adventures. They hope to exploit this energy source to resurrect and re-launch the Skylark. Operating out of the town of Haven on the planet's surface, the knights descend into the Clockworks, with the goal of understanding the mysterious energy source at the planet's core. The interior of the planet is filled with a mechanized, continually reconfiguring dungeon called the Clockworks. Their ship, the Skylark, has crashed on the planet Cradle. The Spiral Knights are a spacefaring army from the planet Isora. The game won Best Online Game Design, and was nominated for three other awards, in the 2011 Game Developers Choice Online Awards. Spiral Knights reached one million accounts in its first three months and three million accounts in its first thirteen months. They also battle each other in an optional player-versus-player mode.

Knights cooperatively battle monsters throughout the Clockworks, the dungeon that fills the planet's interior. In the game, the player controls a knight of the Spiral order, which has crash-landed on the mysterious planet Cradle. The free-to-play, Java-based game was released in 2011 and is still updated occasionally. Spiral Knights is a massively multiplayer online game created by Three Rings Design and now owned by Grey Havens.

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