

Medieval Engineers
Keen Software House · 2015 · Building, Sandbox, Medieval, Physics, Open World
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About Medieval Engineers
Build sprawling medieval cities, castles, and war machines using authentic period technology and physics-based construction where bad engineering makes structures collapse in real-time. Explore an entire voxel planet with full terraforming, destructible environments, and survival elements to fuel your creativity and engineering ambitions.
The game is 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 history and doesn't use any technologies that were not available in the 5th to 15th centuries.
Medieval Engineers concentrates on construction aspects, but can be played as a survival game too. We expect players to use their creativity and engineering skills to build war machines, fortifications, and creations we have yet to imagine!
Medieval Engineers is the second “engineering” game developed by Keen Software House. The first one is Space Engineers, which sold over 4 million copies.

On March 17, 2020 Medieval Engineers left early access and Keen Software House announced the decision to end the development of Medieval Engineers and release the game out of Early Access. The reason for this decision was simple. We restructured our teams and focused on Space Engineers current and continued development.
Immediately following the release of Medieval Engineers from early access we spoke with a number of community members who felt the title still had more to offer. We are inspired by the passion and dedication Medieval Engineers fans pour into the game and by the vision our community has for the project.
Thanks to the patience of our volunteers and the investment of resources from Keen Software House we have created a framework for continued, community-led, development.
Development of Medieval Engineers “Community Edition” will be at the discretion of our volunteer staff, while Keen Software House will still act in a support role. We will provide development resources such as servers, staff support, logistics, and communications support. In addition, we are committed to ensuring that our volunteers have the tools (and freedom) this kind of project requires, to continue to apply their passion to Medieval Engineers in this new “Community Edition”.
How to Access “Community Edition”
- Head to your Steam Library and right-click on Medieval Engineers
- Select “Properties”
- From the menu popup, select “BETAS”
- From available options “Select the beta you would like to opt into”
- From this menu, select “Community Edition”

Features
- BUILDING WITH STRUCTURAL INTEGRITY AND DESTRUCTION
Medieval Engineers is all about building and the options are unlimited. Build anything from houses and castles to wagons and catapults. - FULLY INTERACTABLE WORLD
Interact with everything including plants, bushes, trees, animals, and Terra itself. Everything is interactable and destructible! - VOXEL TERRAFORMING
Make the ground into any shape you want. Use a pickaxe to dig and mine or use the special voxel tools to reshape the land. - LIMITLESS EXPLORATION
Play in a volumetric open world environment and explore a whole planet. Find valuable defensible areas or go to battle alongside your allies to take enemy lands and secure resources. The planet is full of life including trees, plants, animals, and savage barbarian warriors. - INTEGRITY AND DESTRUCTION
Build with structural integrity. Make buildings too tall and they will collapse! Design your structures carefully keeping in mind the differences between wood and stone. Use “Structural Integrity View” to find weak points in real-time. When the supports fail buildings come crashing down in glorious real-time destruction!
Performance Notes
The performance depends on the complexity of your world and the configuration of your computer. Simple worlds run smoothly even on low-end computers, but a more complex world with rich object interactions could overload even high-end computers. Minimum requirements represent the bare minimum to run simple scenes and don’t guarantee a perfect experience.
DLC & expansions
🎁 Complete the collection
Base game + 0 of 1 DLC at today's best prices (some DLC unpriced).
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
bought the game in eairly access in 2019, didnt play it then i had a sudden urge to build and i remembered the game. thank you.2 found this helpful
It runs horribly. like unplayable level.1 found this helpful
great game very happy the community has come together to get this game into the shape it is today thumbs up to keen for not simply abandoning this game but to instead support the community in finishing this great game off1 found this helpful
I loved Space Engineers and bought this after seeing tech videos on YouTube showing the physics of collapsing buildings. Unfortunately I didn't realise this was the full game - effectively just a tech demo for things they went on to add in Space Engineers. Once you've built a castle and then demolished it, you've basically had the full experience.1 found this helpful
Bait and switch game
Very unfortunately the game is broken. In survival some items required to progress the research are broken and cannot be placed, effectively breaking the game by preventing progression. It happens with items crafted at the crafting table. Example: Simple Table Large Chest Training Dummy. It's a shame really I was rediscovering the game and was enjoying very much.
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