Understanding the code helps you troubleshoot. Let's decode the most important lines.
Priority 500 PackedFile Mods/*.package PackedFile Mods/*/*.package PackedFile Mods/*/*/*.package PackedFile Mods/*/*/*/*.package PackedFile Mods/*/*/*/*/*.package PackedFile Mods/Packages/*.package PackedFile Mods/Packages/*/*.package PackedFile Mods/Packages/*/*/*.package PackedFile Mods/Packages/*/*/*/*.package sims medieval resource.cfg
The Sims Medieval was released in 2011, a time when modding was becoming mainstream for life simulation games. EA/Maxis built a deliberate, albeit basic, modding structure into their engine. Unlike later games that auto-detect mods, TSM requires this explicit configuration file to prioritize custom content over game defaults. Understanding the code helps you troubleshoot
The resource.cfg file itself is identical for the base game and the expansion. However, the location does not change. The expansion still reads from Documents\Electronic Arts\The Sims Medieval\Mods . sims medieval resource.cfg