There’s also a wiki now, and separate sections for Subsurface on the SCP-CB Undertow Games forums. There isn’t much content in either of them yet, but I’ll be adding more stuff in the following days (including tutorials for modding and the game itself).
EDIT: The current wiki is temporary, it will be moved to gamepedia shortly.
(Sorry, no SCP – CB updates yet, you’ll still have to wait some more time for SCP-966)
I’ve been trying to make Subsurface as easy to mod as possible. Just like in SCP-CB, all the assets are uncompressed and can be easily edited by anyone. All the characters, sprites, items and things like that are configured in .XML files that can likewise be edited.
The config file of a welding tool
But what happens if you join some server with your modified files, or if the server is running a modified version of the game? I solved this by using a system that I call “content packages” (subject to change if anyone comes up with a better name).
Extremely unfinished launcher and a “package manager” used for configuring the content packages