Back in the day, Operation Flashpoint, the predecessor of ArmA, had a mod community that built mods that came with huge new maps, new equipment and actually decently written campaigns. All because of the official mod tooling, which even came with tutorials.
I'd love to see someone figure out how to up the player limit or link games. Baldur's Gate would be such a great medium for a D&D roleplay server if it could be set up to handle it.
I guess this means I'll finally get to actually play it
My playthrough on release got aborted midway through act 3 because I was using mods before official support and the constant updating and mod breaking eventually destroyed my savefile.