Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural works and mechanical equipment using medieval technology. Players build cities, castles and fortifications; construct mechanical devices and perform landscaping and underground mining.
User reviews:
Mixed (87 reviews) - 49% of the 87 user reviews in the last 30 days are positive.
Mostly Positive (3,243 reviews) - 73% of the 3,243 user reviews for this game are positive.
Release Date: Feb 19, 2015

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Medieval Engineers is an Early Access game, which means that it is released while under development but is already in a very playable state and contains a vast amount of features. The game is being improved on a regular basis through updates that add and polish features and content, optimizations and bug fixes.

Getting real feedback from our community is our topmost priority. Working on a game behind the veil isn’t fun and is altogether much less effective. Real people with real needs and real voices you can listen to are the heart of game development. We invite all players to give us their feedback and suggestions and help us create the best game possible!

Buy now, play on Steam and receive future updates.

Everything in the game is subject to change.”

Approximately how long will this game be in Early Access?

“Medieval Engineers will remain in Early Access development until we gather enough feedback from the Community. We need to see how people play our game and what do they want us to focus on. Community feedback is expected and will direct our future decisions. We want to ensure that our players have the best experience possible and we will continue to develop the game in Early Access for as long as it is required in order to achieve it.”

How is the full version planned to differ from the Early Access version?

“We are planning to release new updates on a regular basis. These updates will contain new features, optimizations and bug fixes. The same model has been used for our first Early Access title, Space Engineers (, with great success. New additions to the game will be also depended on player feedback.”

What is the current state of the Early Access version?

“The first release of Medieval Engineers will feature: Creative mode (unlimited resources, instant building, invulnerability, levitation), Steam Workshop (SDK + API), damage, and structural integrity. Multi-player and survival modes will come later. A full list of all the features can be found on our website:

Will the game be priced differently during and after Early Access?

“All players who decide to purchase the game in Early Access will receive future updates. The price of Medieval Engineers is going increase gradually for as long as it is under development and more features are being added.”

How are you planning on involving the Community in your development process?

“Our studio has a very good reputation for developing Early Access titles and the way we involve our players in this process. Our first Early Access game, Space Engineers, is considered to be among the most successful Early Access projects on Steam. Getting real feedback from the Community is our topmost priority. Real people with real needs and real voices you can listen to are the heart of game development. There is a dedicated sub-forum where players can report bugs that they find in the game ( Similar to our forum, players can use our Reddit page as well (”
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Recent updates View all (95)

October 18

Update 0.3.1 - Planets

Medieval Engineers is back in action with a great new update! With the introduction of a highly detailed planet, a phenomenal world map that shows a symbolic depiction of the world, a fully updated rendering engine and many optimizations. Engineering in medieval times has never been this awesome. Not to mention all the other new additions to the game, like doors, new particles, a wardrobe, land ownership, and finally the ability to play as a female engineer!
Now it is possible to enjoy claiming territory, working together with allies to defend it from enemies, or siege and destroy other player’s castles! Go hunting for deer, fight off barbarian attacks, design your own banners, or simply enjoy the view of the world from atop your own castle. Most features of the game support modding and the Steam Workshop, which already has thousands of items available to use with the game.
Full list of new features and fixes:
Marek's Blog post: Medieval Engineers Re-Launch -

35 comments Read more

October 18

Medieval Engineers: Planets Release Stream in 2 hours

Release Party Live stream Oct 18 @7pm CEST (in 2 hours from now)

9 comments Read more
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“Medieval Engineers has set the bar for future sandbox games quite high.”

About This Game

Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural works and mechanical equipment using medieval technology. Players build cities, castles and fortifications; construct mechanical devices and engines; perform landscaping and underground mining.

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 an action game too. We expect players to 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.

Medieval Engineers is the second “engineering” game developed by Keen Software House. The first one is Space Engineers, which sold over 1 million copies in its first year and is still a bestseller.

Early Access

  • Game modes
    - Creative - unlimited resources, instant building, invulnerability, levitation
    - Survival - this mode is work-in-progress. Currently available: death/respawn, survival building, resource management, inventory, character stats (health, stamina, food)
  • Single-player
  • Multiplayer - alpha version (not final)
    - Creative and survival mode with your friends
    - Cooperative: build together with your friends, protect your castles/cities from barbarian raids
    - Competitive: battle against other players
    - Privacy customization: offline, private, friends only, public
    - Max 16 players (this may increase in the future)
  • Character crafting - craft your tools using the basic resources such as scrap wood or small stones
  • Dedicated servers - players can connect to a third party host, rather than using a player-host, in a peer-to-peer set-up. The result is a faster connection and a more fluid multiplayer performance with less lag
  • Barbarians - first prototype of enemy AI
  • Barbarian waves (survival mode) - barbarians will attack players in waves during the night
  • Weapons - Crossbow, sword
  • First-person & Third-person
  • Block types:
    - Small: 0.25 meter (25 centimeters)
    - Large: 2.5 meters
    - Dynamic: can be used to construct carriages and machinery that is supposed to be moved around
    - Static: immovable and connected to earth; if a heavy load breaks its structural integrity it cracks and unsupported parts become dynamic
  • Building blocks: stone walls (various shapes - from blocky to rounded), wooden walls and flooring, roofs (ceramic, thatched, hay), power source blocks (manual human labor), stored energy blocks (torsion spring), leverages, weights, swings, ropes, wooden beams of various length and shape… More will be added in future!
  • Realistic physics – structural integrity, destructible objects (everything: from blocks to terrain), real proportions, volume, mass, storage capacity, integrity
  • Steam Workshop – share your creations with the Community
  • Modding - world files, 3D models, textures, shaders, API (scripting in-game objects in C#)
  • 64-bit
  • World management – generate new worlds, “save as” to multiple copies, auto-save every 5 minutes (can be turned on/off), edit world settings

    More to be added later

    Please be sure to read the list of current features before you buy the game. It will give you an insight on what is or isn't actually working:

    Performance Notes

    Medieval Engineers is in development and undergoing frequent optimizations. The performance will get better. 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.

System Requirements

    • OS: Microsoft Windows 7 (latest SP) 64-bit
    • Processor: Intel Core2 Duo 2.0 GHz (or AMD equivalent)
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 460 / AMD Radeon HD 5830 / Intel HD Graphics 4000
    • DirectX: Version 11
    • Storage: 10 GB available space
    • Sound Card: DirectX® compatible on-board
    • OS: Microsoft Windows 7 (latest SP) 64-bit
    • Processor: Core i5-680 @ 3.6GHz, Phenom II X4 810 or better
    • Memory: 8 GB RAM
    • Graphics: AMD Radeon HD 7870 / NVIDIA Geforce GTX 660 with 3 GB VRAM or better
    • DirectX: Version 11
    • Storage: 10 GB available space
    • Sound Card: DirectX® compatible on-board
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Mixed (87 reviews)
Mostly Positive (3,243 reviews)
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2,220 reviews match the filters above ( Mostly Positive)
Most Helpful Reviews  In the past 30 days
23 of 26 people (88%) found this review helpful
19.3 hrs on record
Early Access Review
Posted: October 18
As of this writing, the Planets (more like Planet) update dropped, 0.3.1.

After nearly six months of hiatus, a lot of things have changed.

Under the management of Tim (deepflame), the company has, in my opinion, turned the entire game development around.
The game is moving to a sane patch schedule:
Every week: Alternating between bugfixes and new minor content (like blocks)
Every 6-7 Weeks: Minor feature release (like mechanical blocks)
Every 3 months: Major feature release (not sure what this entails, but probably on planets scale)

Now, on to the new features:
- This is more like a single planet, but can be fully modded for any size or features, just like in Space Engineers.
- Contains ruins and other neat easter eggs.
- Yes, you can walk all the way around a planet!

Survival research system:
- Yes, survival is actually playable now. The default world is still creative, but survival does work. You can now gather resources, including rock on the road, and use them to build components to build blocks.
- You start out with nothing. You no longer get starter tools. Minimalist survival experts rejoice!
- Building increasingly more complex blocks requires advancing in the research system to unlock higher tiered blocks and tools.

Female Engineer:
- This may be concerning for some players, like "why spend time on a female engineer when there are more gameplay elements that should be worked on first?"
- In my opinion, having a female playable character in the vanilla game is important for gaining playerbase. People want to have a character that represents them. Gaining more playerbase is always good for a healthy game. People want to play as a character that they feel represents them. For example, I'd prefer a non-bearded model myself.
- Mods can handle this, and there are some already, but it's not the same as having the vanilla game support it. Many players only play a game for 30 minutes or so before they decide whether they like it or not. Having that choice up front, without having to learn the modding system, will help people feel more comfortable with the game.

Claim Blocks:
- You can now claim square areas with a claim block. This protects your area from unauthorized building and mining inside the claimed area. Note this does not protect against normal attacks.
- Taxes: You have to pay taxes (in the form of resources) to maintain the claim block and keep your area claimed.

- This is, in my opinion, one of the most immersion providing features to this game. It's well known that in medieval times, banners of the Lord or King who owned an area were on display, and carried into battle. One common example is Cross of Saint George used during The Crusades. Now you can make your own banner and show off to enemies who you are before you destroy them!

World Map:
- This is my most favorite feature.
- The map shows you not only world features, such as mountains, trees, and roads; but also player constructed buildings and rough player location. The map updates dynamically based on player creations (but not voxel changes).
- The world map is automatically generated based on the height map used to construct the planet. This means planet modders don't have to do anything special to create a map, it will be created on its own.

Fast Travel:
- Used in conjunction with the map, this allows the player to quickly travel around the planet, subject to customizable limits (can also be turned off completely).
- Analogous to the Jump Drive in Space Engineers.

Contextual Menu:
- They are still a work in progress, but they are vastly improved over the old clunky interface.

There are so many more features and fixes.

As for function:
- Multiplayer has improved quite a bit, and at least for servers with 16 players or less, is actually playable.
- Yes there are bugs, but they are working quickly to stomp them out now.
- UI is still clunky in some places (like inventory), but more improvements are coming.
- There are issues placing blocks, particularly when trying to aim them to place.

- Has the game improved? Tremendously.
- Is it perfectly playable? Of course not, it's still alpha. That said, it's more playable than before.

If you are concerned about EA games and aren't impressed with what you've seen so far (why?), then hold back and wait for a few more updates.
However if you are as excited as I am about where this game is going, and what is in the game now, then pick it up!

Under Tim's leadership, this is really turning out to be a fantastic game. I hope Space Engineers gets the same love and guidance as Medieval Engineers is now getting.
Was this review helpful? Yes No Funny
12 of 15 people (80%) found this review helpful
1 person found this review funny
98.5 hrs on record
Early Access Review
Posted: October 18
Dedicated devs ignore ridiculous criticism and release outstanding update. Steam review system proven wrong again.
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8 of 10 people (80%) found this review helpful
14.5 hrs on record
Early Access Review
Posted: October 18
Unlike what people say Medieval Engineers is NOT DEAD. Those of us who check their forums have kept up to date with the games progress as the new project lead Tim "Deepflame" has revamped and revitalized the game, and bruoght it into a state where it is fun to play. His hard work over the past 6 months has paid off, and the game is finally ready for release, with the big update being the planet that the game is now played on.

I know keen had a bad past with Miner Wars, but they seem to have put that behind them and are hard at work making their current games great.

Bottom line, the game is fun, the devs are great, and comunicate with the comunity on their forums.
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8 of 10 people (80%) found this review helpful
39.3 hrs on record
Early Access Review
Posted: October 19
While most people give this game a thumbs down for it's bugs and unfinished state i'd like to get the truth out there. Rather than write an extremely long winded review that most people will skip i'm going to make a pros/cons list, and then add a few comments at the end.

Fun and Rewarding Survival
Great Physics
Great Weapon Design System
A Claim and Faction System
Creative Mode For if You Feel Like Just Building or Messing Around
Unique Resource Collection System
Decent AI That Does a Variety of Things (Peasants, Deer, Barbarians, Oh My!)
Relatively Stable Multiplayer
Constantly Updating (Most of the time to fix bugs, sometimes to add features)
Round World
Fast Travel
Fun Banner Design System
Many Other Things

Difficult To Run (Mostly GPU Intensive But a Good CPU is Required)
RAM Hog (Atleast it used to be, don't know now that I have my new rig)
Voxel Editing is Tricky
The Large Updates are Very Spaced Out
Development is Slow
Female Player Model Looks a Tad Off
No Mechanization (For Example The Ever So Advertised Windmill Doesn't Actually do Anything, Just Spins)
A Few Other Things I Couldn't Think of Off the Top of My Head

Summary: It's a great game, with alot of features, and stuff to do. As long as you don't mind the heavy system requirments, slow development, and ocassional bug.
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5 of 5 people (100%) found this review helpful
2.8 hrs on record
Early Access Review
Posted: October 19
I have not played this game for a while and when i sawe it was getting a planets update i jumped on and i have to say its a very solid update and i look forward to playing more
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9 of 13 people (69%) found this review helpful
1,131.8 hrs on record
Early Access Review
Posted: October 4
EARLY ACCESS (this review will be updated)

Hi Guys!

First, I really like sandbox games and Keenswh is making exactly what I wanted for a very long time.
The game is still in progress and the weekly updates have stopped for the time Keenswh are making the new world with planet coming out Oct.- 18 - 2016

We could see all the work in progress during this non-updates period and could chat with the Devs in Q/A on what we want for this game.
There is a very good team working on this game, they are kind, answers questions in the weekly videos and sometimes Live on ''Twitch'' where we can directly chat with them.

I will give a 10/10 even if the game is not completed.

My Workshop for Medieval Engineers :

Here is why I give 10/10, have a look at what I can do with this game:

You can watch more videos in my Steam profile.

Thank you Keen Team!
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4 of 4 people (100%) found this review helpful
16.8 hrs on record
Early Access Review
Posted: October 20
In my opinion this game is pretty amazing as it is. The game engine itself is built by keen software, which is a lot more than most indie companies even try to do. The engine itself is what takes the most time in almost any game’s development process. The only other indie company I know of that makes its own engine is tale worlds. Look at games like Ark Survivor Evolved which rake in huge profits and then demand more money for additional content before the game is even finished and it’s ran off of an already built engine for game designing. This game is still being updated and produced without requests for additional funds and the content is great. Yeah, it takes time for them to make the updates but if you knew anything about game design you’d realize that content in a game this detailed is time and labor extensive. I’m an aspiring game designer myself so I’ve learned to appreciate just how much work goes into these games and the fact that this game has one of the best physics engines I’ve seen for a game and some of the nicest graphics for an indie game based on its own engine I’ve nothing to complain about. Yeah, it has bugs but so does every early access game in existence because guess what we’re paying to alpha test the game! It’s not like it’s a finished product slapped with a full price tag and told that it will work 100%. Triple A titles do this to us all the time and when it has bugs they patch them after release and you’ve already dropped 60-80 bucks on it! Just look at Rome 2 total war, Battlefield 4 and almost any other triple A company’s games when they come out fresh from the cooker. Keen, I don’t know if you read these but if you do thank you so much for being an honest and amazing company, Keep up this amazing work and I’ll continue to recommend this game along with space engineers to everyone I know because it is a rare thing to see a company which has some real honor behind them.
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4 of 4 people (100%) found this review helpful
12.6 hrs on record
Early Access Review
Posted: October 19
This game is a great sandbox about building giant towers and destroying your own creations! The AI is dumb, but still a great concept. There are still many glitches, but the game suprisingly flows like butter! Sure, the lag kills me here and there, but you quickly forget about it! So far, this is the best Medieval simulator on the market.
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4 of 4 people (100%) found this review helpful
28.7 hrs on record
Early Access Review
Posted: October 19
I have to say when this first came out it was a mess. Than they did a big planet update (the world is round not flat) and now I been playing this game and having fun on servers. It takes a little to get use to, its best to join someones game and join a faction to learn the ropes. I hope they keep working on both games but it seems that this is more stable than Space Engineers. Still a few bugs and lag online but I think a few patches can fix it. I think the community is growing again. I hope more interesting mods and blueprints will appear. Overall this game huge improvement update made me come back and now I enjoy the game.
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5 of 6 people (83%) found this review helpful
24.9 hrs on record
Early Access Review
Posted: October 18
I enjoy playing this game once in a while and following the updates. The developers are actively working on this game.
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Recently Posted
9.6 hrs
Early Access Review
Posted: October 22
This game is meidicore in singleplayer, but in multiplayer it is AMAZING! Maybe i just had a good server, but nobody tried to kill me on sight, me and some other players built a big tavern with berrys, and made a town.
Helpful? Yes No Funny
120.1 hrs
Early Access Review
Posted: October 22
So a long- long time ago it was a very cute little game about castle building - I've spent a good total of over 100 hours tinkering with keeps ,sities and mines, and it was a lot of fun although it was lacking a lot of parts and wasn't spacialy big ,but now the game is entirely new - giant world's , a work- in -progress RPG system (R.I.P. castle siege ,didn't need you anyway) and most importantly - that feeling of Terra-nova that space engienrs acomplished in 2015. It truly feels like a building adventure in an epic medival world .But its still not done - lags are common, bots are dumb ( there isn't much to begin with honedstly) and ther is a lot missing in terms of bloks and aother bulding do-dads. BUt honestly - it's already great , so why not to play it?
Helpful? Yes No Funny
4.2 hrs
Early Access Review
Posted: October 21
*This is a placeholder for a postive review*
Helpful? Yes No Funny
55.8 hrs
Early Access Review
Posted: October 21
ABSOLUTLY love the updates. havent played in a long while cus i wanted to survival and build things with ropes. as i wright this in my survival game i have started a quarry and some simple building and i enjoy the new look to how the terrain changes when you mine. and the improvements to the inventory are much apprieciated
the world looks awesome i have been playing on the medival earth and turned barbarians off for now
Helpful? Yes No Funny
49.3 hrs
Early Access Review
Posted: October 21
I bought this game the day it was released and, having played space engineers for 500+ hours back then I knew that it was going to be a bit buggy, and it was... and it still is to this day, still I really enjoy it, especially since the release of planets.

-Structural integrity
-Multiplayer is fun
-Frequent updates (more or less)

-Buggy (not a big deal)
-Not much to do in singleplayer

Best buy when on sale, it's worth ~15€ in it's current state
Helpful? Yes No Funny
Crippling depression
16.7 hrs
Early Access Review
Posted: October 21
world file is corrupted on all my workshop maps, yay
Helpful? Yes No Funny
61.0 hrs
Early Access Review
Posted: October 21
I was reserving my review until the planet update came out so here we go…
More than a simple update, what we had here is a whole new start for the game, under the lead of a new team leader, and I must say that it definitely took a step in the right direction.
Before this update/relaunch, what you had was more a sandbox than an actual game. It really looked promising as the building mechanics were very interesting and game many creative possibilities.
Now, they have introduced these mechanics inside a multiplayer environment where factions, wars, siege and territorial domination are involved and I must say that it is already very interesting.
Don’t get me wrong, as it is now, the whole thing is no more than a preliminary draft of what we will have in several months, there some bugs and many fundamental gameplay mechanisms still have to be implemented/changed but it is already very fun.
It is also clear that the team is very active. Not only that, but it also listens to the community and actually answer in the forums, this is very encouraging.
So, to sum up, this is still not a polished and flawless game, don’t expect this, but there is a huge potential and I believe that the development will be very fast paced form now on.
Helpful? Yes No Funny
23.0 hrs
Early Access Review
Posted: October 20
I bought this game the day before the relaunch, and the difference is night and day. Yes the game is still incomplete in many areas, but is now a whole lot more fun and a lot less frustrating. There are now reasons to explore the planet and stake out your own claim, build up your house and castle, and pillage other players. The online experience is incredibly stable for Space Engineers and Medieval Engineers. At the launch stream, we got 79 players all on one server and the game still ran. You obviously need good hardware to host a game of that size, but the game itself is remarkably stable.
Helpful? Yes No Funny
12.3 hrs
Early Access Review
Posted: October 20
With the release of 0.3.1 (October 18th) I feel that I must change my review as the dev team from KSH has redeemed themselves a lot with this most recent release. They have not only introduced a world, with fast travel capabilities, but they have finally fixed many annoying issues from the past. (targeting issues, motion sickness / FOV issues, etc) Is the game perfect? Not yet. Is the game completely free of bugs or issues? I don't know, it's still a game in early access so I'm sure there will be glitches and bugs along the way. But the game breaking issues seem to be resolved at this point and the dev team appears to be back on track. Let's hope the trend continues! I still have high hopes for this title. At this time I'm going to give this a thumbs up, for now! Good job!
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