Spiral Knights is an online RPG game developed by Three Rings Design for Windows. In the game, players take on the role of a Spiral Knight who has crash-landed on an unknown world. The Knights need to venture deep into the Clockworks, a giant complex full of clock-like mechanisms and monsters, to unravel its mysteries. The game is heavily influenced by the first installments of The Legend Of Zelda series, with top-down gameplay, puzzles, and battles against groups of enemies.

Players can also socialize in the city of Haven, where they can upgrade their equipment, trade, and join a guild. The game is entirely free-to-play, but players can buy in-game currency with real money to purchase promotional costumes and other items. With an option for cooperative play, players can face the challenges of the Clockworks together. Spiral Knights offers an immersive and engaging RPG experience with its unique setting and gameplay mechanics.