For other games:
If you're unsure which type of SGS file you have, or if you simply want to view the contents without the original software, several universal tools can help.
Use a specialized retro tool like SaveRam Backup Parser or Saturn Save Converter . Load your .sgs file and export it as a .raw , .brm , or .srm file depending on your target emulator.
Because there is no single, universal "SGS Editor," your choice of tool depends entirely on your file's origin. Text Editors (Best for Game Files & XML Data)
Tweak unit stats, movement costs, and historical event timers to balance the game to your liking. How to Access the SGS File Editor
A third instance of the .sgs extension is associated with , a collection of emulators for Nintendo consoles.
If the SGS file is just a renamed text file, change the extension from .sgs to .txt to see if it opens cleanly in Notepad.
Circa 2005, a niche turn-based strategy game — “SGS: Fall Weiß” (hypothetical but based on real patterns) — saved scenarios in .sgs files. The game had no built-in editor.
Do you see when you open it?
Depending on your file's origin, you will need one of the following editors: 1. SGSEdit (The Strategy Game Studio)
These are primarily Settings Files used to store emulator configurations or data.
Download a free hex editor like HxD. Open the SGS file to view its raw hexadecimal code. This method requires advanced knowledge of data structures, as changing the wrong byte can render the file unusable. 3. Game-Specific Modding Tools
If your .sgs file comes from a visual novel or game built with the YU-RIS Engine, the engine itself is required to properly read, edit, and convert these files. These are proprietary game save files that cannot be opened with standard text editors without resulting in garbled, unreadable data.