Install order, and which mods depend on which

The short answer

The order is foundation → API → individual plugins. BepInEx is the foundation: 6 mods in this catalogue name it as a prerequisite.

If this is your first install you do not have to work the order out yourself, because HF Patch installs the whole foundation for you. Order only starts to matter when you add individual mods later.

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The three that everything sits on

These three also depend on each other. Both BepisPlugins and the Modding API require BepInEx, so BepInEx always goes in first.

BepInEx →BepisPlugins →Illusion Modding API (KKAPI / KKSAPI) →

Other mods used as prerequisites

Beyond the foundation, a few mods are named as prerequisites by others. If you expect to use anything that builds on them, installing them early saves a second pass.

MaterialEditor →Sideloader →Timeline →

Two things that look like order problems but are not

Even with every prerequisite in place, these two make a mod look broken.

• Wrong game. Koikatsu and Koikatsu Sunshine builds are separate files and are not interchangeable
• Sharing cards. The person opening your card needs the same mods you used. MoreAccessories, Pushup, MoreOutfits and DynamicBoneEditor all change how a card looks when they are missing

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Checking a specific mod

Every mod page on this site has an "Install these first" section linking to the prerequisites we know about. Foundation mods show the reverse: the list of mods that need them.

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Scope of this article

These dependencies come from the README of each mod's own distribution page, fetched and checked on 18 August 2026 — 63 of 74 entries, 158 links. The 11 entries whose distribution page states no prerequisite are left empty rather than filled in by guesswork. Always read the distribution page before installing.