Unfortunatelly not at all.
Idk what you did, but whenever I try to either join a custom game that runs a mod that I don’t have I get an error that says “you need <modname> ~ world001.map to join this game” and the other way round if I host a mod nobody else has but which uses the main campaign it throws the same error.
Also there are usually not more than 5 players online there and the main goal of my idea was to bring together lots of players into one server (more than 4 which actually works pretty good) to have fun together in a modded fun world.
This sort of stuff is a lot of work and if there will be like 3 persons that join, it’s not worth the work at all.
BTW: little side note: can you please put “custom game” in the custom game browser as default game type? I thought for months that there were no games at all in custom quest because by default it was grim dawn and I had no idea that I had to change the type to search for…I mean I wouldn’t really expect that in the custom game menu the default game search type is main game.
Also I still don’t really get what you’re promising yourself with “closing this exploit” as it still rather harms modding than fixes any malicious stuff.
For example regarding items that kill your character when you equip them: You could still modify the game’s database and give your main game char such an item in single player, change back database and join multiplayer and give the item away, not to speak of simply copying over custom quest chars to main game etc.
Regarding the killing of players, especially hardcore players, I’ve spent a bit of time (like 30 mins) to see what is possible without mods and found multiple ways to kill players without having to use a mod, even inside peace zones in both pvp and non pvp enabled games (both host and client, even more ways as host) and I think everybody who knows how this works with mods will find these ways if they spend a bit of time and work into that.
As I already said, modded main game servers were fun as hell back in tq and this type of server survived until the end of the game’s online time and they still were always full nearly instantly after opening them.
What’s so wrong about just adding a warning when you’re about to join a modded game, including a “cancel” button so people can stop joining if they feel like they don’t want to and a warning if somebody tries to join your server with a modded version of the game?