Assuming you are using the standard or HF Patch setup (which uses BepInEx and KKManager ), here is how to install a manual Map Mod.
IllusionMods/KK_Plugins: Various plugins for various ... - GitHub Honey Select 2 Map Mods
While less common now, some legacy map creators still use LoversLab. Look for "HS2 Map Collections." Assuming you are using the standard or HF
A mod designed for fans of the horror genre, featuring a creepy mansion filled with mysteries, traps, and terrifying enemies. Honey Select 2 Map Mods
Tip : You can create subfolders within mods (e.g., mods/Maps/Modern ) to keep things organized.
The historical home of Illusion game modding.