Keen Software House

Keen Software House is an independent Prague-based video game developer, publisher and simulation-technology studio founded by programmer and entrepreneur Marek Rosa in 2010. The company creates hard-science-fiction sandbox experiences built around engineering, physics, exploration and player creativity.

Its early releases included the 2012 space-action titles Miner Wars 2081 and Miner Wars Arena. The studio later established its flagship series with Space Engineers, which debuted in Steam Early Access in 2013 and centres on modular spacecraft construction, asteroid mining, structural stress and real-world-inspired physics. The game has sold more than five million copies across PC and console platforms.

Engineering-led games

Keen develops its own technology through the VRAGE engine family, created to support destructible voxel environments, volumetric simulation and physics-driven mechanics. VRAGE 2.0 powered Medieval Engineers, a sandbox game focused on structural integrity, medieval construction and siege destruction. The studio’s next-generation VRAGE3 technology underpins Space Engineers 2.

Its development work spans:

• Full-cycle game development, design and self-publishing
• Proprietary game-engine research, engineering and licensing
• Live operations, platform distribution and community support
• User-generated content, scripting and modding ecosystems
• Multiplatform development for PC, Xbox and PlayStation

Games and simulation

Keen’s work is characterised by hard sci-fi settings and systems that encourage experimentation with machinery, construction and physical simulation rather than fantasy conventions. The studio describes its approach as grounded in realism, scientific literacy and “the need to create,” with an aim of encouraging interest in space exploration and STEM subjects.

The company operates as Keen Software House s.r.o., under Keen Group a.s., and continues to develop games and proprietary engine technology from its Prague headquarters. Its portfolio includes Space Engineers, Space Engineers 2, Medieval Engineers, Miner Wars 2081 and Miner Wars Arena.