Siege Camp

Siege Camp is an independent Canadian video game developer and publisher focused on large-scale, persistent online worlds. Based in Toronto, the studio self-publishes its games, retaining creative ownership and engineering direction while building multiplayer experiences designed around player-led conflict, logistics, construction, and long-running campaigns.

The studio is best known for Foxhole, a persistent massively multiplayer war game in which players collectively shape an evolving conflict through frontline combat, base building, manufacturing, and supply-chain operations. After debuting in Steam Early Access in 2017, Foxhole reached version 1.0 in 2022 and has continued to receive major expansions, including naval and airborne gameplay.

Persistent multiplayer technology

Siege Camp develops the proprietary R² Engine (R-Squared Engine), a custom multiplayer platform intended to place more than 1,000 players on a dense battlefield within a persistent online world. The technology was first publicly tested through the Red River Demo in 2019 and underpins the studio's next major project, Anvil Empires—a medieval massively multiplayer conquest game currently in development.

Development and publishing

Its work spans the full game-development cycle, including programming, 3D art, animation, audio, UI/UX, dedicated-server infrastructure, live operations, and community moderation. The studio's earlier catalogue included mobile titles such as Tank Hero, Tank Hero: Laser Wars, Sector Strike, Play Tennis, and Virtual Table Tennis 3D. In 2016, it expanded into PC and console development with Fortified, a 1950s-inspired science-fiction co-op shooter and tower-defense game.

Formerly known as Clapfoot Inc., the company adopted the Siege Camp name in June 2021 to reflect its long-term focus on persistent multiplayer battlefields. Today, it continues to support Foxhole while developing Anvil Empires and its underlying network technology.