[Open] Unable to join any games

[Madkruser]

Use module_version and compatible_savegame_module_version instead
#works_with_version_min = 1000
#works_with_version_max = 1011

AND

NordInvasion
compatible_with_warband = 1

module_version = 10002 # x.xxx
compatible_module_version = 10000 # multiplayer
compatible_savegame_module_version = 10000

are the only things similar to what you're asking for.