Mod loaderBepInEx 6 (IL2CPP)
Finds the game in Steam

Start modding Cat Mail Co.

  1. Download Mortar for Linux or Windows and open it.
  2. Pick Cat Mail Co.. Mortar installs BepInEx 6 (IL2CPP) and makes your first profile.
  3. Open Browse, add the mods you want, and press Play. Each profile keeps its own mods and settings.

Share a profile

A shared Cat Mail Co. profile is a link to mortar.rethunk.tech/cat-mail-co/p. Whoever opens it sees the mod list and imports it in one click. The profile lives inside the link, so nothing is uploaded.

More games on BepInEx 6 (IL2CPP)

All 333 supported games →