Then you can start the game manually by running the SpaceEngineers.exe. You will find this inside the SteamLibrary folder in C:\Program Files(x86)\Steam\SteamApps\ common\SpaceEngineers). If this doesn’t work, download this file: Steam_appid.txt (right click and save link as) and paste it into the Bin and Bin64 folder of the game. Solution: First try to restart your Steam client and/or your PC. Problem: The Logfile says “BadImageFormatException” and/or “Could not load file or assembly SteamSDK”. You get the “ Please run this game from Steam“ error message. Please update your Steam client and then restart your PC. Also, installing. Solution: Update of the Steam client must be enabled, because an outdated client may not be able to recognize and run the game. Solution: Please follow this link: Problem: The game does not start and you get the message “Steam not running! Please run this game from steam. Problem: When your game does not start in 64-bit mode or it displays a message box saying “Space Engineers cannot be started in 64-bit mode”
