I mean, what you’re suggesting essentially boils down to “disable the expansions”. Which you can do, there are Steam launch parameters to do this and even a community-made tool that automates the process:
If some of you only have the base game, then the others can disable the expansion(s) via the launch options. Likewise if everybody has Ashes of Malmouth, but only some Forgotten Gods.
Steam users
To only play with the base game, add /nogdx1 to your launch options
Or /nogdx2, if you want to play only with the first expansion
Separate multiple options with a space
[grafik]
GOG users
In GOG Galaxy go to Grim Dawn > More > Settings > Add command line arguments and enter / select the required l…
GD Switcher
Download
Read and download currently from my post here below.
What It Does
Lets you easily set and change launch options and fire the game up
Enable/disable expansions to more easily play with your friends
More in-depth features are being worked on (saves/stash/mods management and other related tasks)
How To Use
It’s a self-contained .exe file, no installation needed
Download and place it wherever you like (I prefer pinning it to the Windows taskbar personally)
Fire it up…