Some mods target the Mono version of the game, which is available by opting into the Steam beta branch "alternate"
ScheduleOneMorePlayers
Raises Schedule I's co-op lobby cap from 4 to 8 players (configurable up to 250). Everyone in the lobby needs it.
CHANGELOG
Changelog
0.1.1
- Fix the game crashing when hosting: the lobby size and server client limit are now raised from hooks that are safe to patch.
0.1.0
- First release: configurable co-op lobby cap (default 8, up to 250), with more player slots in the lobby panel.