Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural work and mechanical equipment using medieval technology. Players build cities, castles and fortifications; construct Mechanical Devices and Engines; and perform landscaping and underground Mining.

Medieval Engineers utilizes a realistic volumetric-based physics engine with a focus on structural integrity: all game objects can be assembled, disassembled, damaged or destroyed, and the object’s mass and structure influences its integrity. The game comes with creative mode and an early prototype of survival mode. This is the second “engineering” game developed by Keen Software House. The first is Space Engineers, which sold over 1 million copies in its first year and is still a bestseller.

Medieval Engineers concentrates on construction aspects, but can be played as an action game too. It is expected that players will avoid engaging in direct man-to-man combat and instead use their creativity and engineering skills to build war machines and fortifications. Medieval Engineers shouldn’t be about troops; it should be about the Machinery you build. Inspired by real medieval technology and the way people built architectural works and mechanical equipment using medieval technology. Medieval Engineers strives to follow the laws of physics and real history and doesn't use technologies that were not available in the 5th to 15th century.