Keen Software House is an independent video game developing company based in Prague, Czech Republic. The company was founded by Marek Rosa in 2010. Keen Software House's technological know-how and proprietary VRAGE game engine has allowed the company to create games that leverage elements of science into the gameplay. The studio's first game, Miner Wars 2081, focused on an open world with destructible terrain, while the second game, Space Engineers, presents volumetric physics as gameplay in a space-based environment focused on engineering, construction, and maintenance of spaceships and stations. The company's proprietary VRAGE game engine powers both of the titles and is currently in iteration 2.0. Additionally, they have created a separate team charged with development of Medieval Engineers - utilitizing similar rendering styles, while adding in weight and block-based destruction / deformation with physics calculations set in medieval times. This game offers both a single and multiplayer experience set on planets from Space Engineers but with a territory-based grid system where clans can battle for ground to build on. Realistic mechanical contraptions such as catapults can be created to damage structures in real-time.