Because if you happen to not be able to connect to the internet for some reason, you cannot use mods, nor can you run any world that is saved that contains mods even though all the mods are stored on the hard drive.
I would like to see the ability to use mods that are on your HD already be able to be used without having to connect to the internet.
Save game files hold all of the data relating to each of your Space Engineers saves. You might need to access them in order to create a backup, move them to a new computer, delete them, or use them for some other reason. You can find all of your Space Engineer save game files in the following folder on Windows:
Within this folder, you can find each of your mods inside a folder thats name is the same as their ID (a bunch of numbers). You can find out the ID of a mod by looking at its workshop URL. For example, the following workshop URL, if installed, would be in a folder named
The game was both published and developed by Keen Software House, a develop based in Prague, known best for its games such as Miner Wars and Medieval Engineers. Set in an open world environment, Space Engineers is available on Xbox One and Microsoft Windows and is run on VRAGE 2 Engine which is unique to Keen Software House.
Space Engineers – ModSDK, is an application that includes a set of tools specifically created for modding. The application is totally free for everyone, even for those who don’t own Space Engineers game. In order to find it, open the Steam client, go to Library, Tools, type “Space Engineers ModSDK” in the searchbox and just follow the steps to install it.
The folder contains the definition files for Cube Blocks, Physical Items, Voxel materials, Transparent materials (particle effects), Components, Blueprints and a few other things. By using the XML files here (extension .sbc) you can modify most of the game objects and add, for example, a new type of cube block. When modifying files, make sure you delete the .xml cache file. It is possible to create, for example, round armor blocks, a new type of thrusts, gyro, a different cockpit and many more.
Can you play space engineers with mods offline?
How do I manually install mods in space engineers?
Can you add mods to an existing space engineers world?
Are there mods for space engineers?