NoArbitraryIncompatibilityFlag

A BepInEx patcher that removes incompatibility restrictions from RtD mods, allowing them to work alongside other popular Valheim mods.

What Does It Do?

This patcher removes incompatibility checks from RtD mods at runtime, enabling you to use them together with mods that were previously blocked. The mods themselves work fine together - this simply removes the restrictions.

Affected RtD Mods:

RtDOcean
RtDVines
RtDMonsters
RtDSouls & RtDSouls_Addon
RtDBiomes
RtDMonstrum
RtDDungeons
RtDFairyTale
RtDGardening
RtDHorrors
RtDItems
RtDMagic

Previously Blocked Mods (Now Compatible):

CookieMilk.MagicalMounts
CookieMilk.MajesticChickens
CookieMilk.BuildPieces
CookieMilk.CarryMeMaster
CookieMilk.DiscordControl
CookieMilk.UltimateServerControl
Therzie.MonstrumDeepNorth
Therzie.WarfareFireAndIce
Therzie.Monstrum
Therzie.Armory
Therzie.Wizardry
Therzie.Warfare
blacks7ar.MagicPlugin
blacks7ar.MagicRevamp
blacks7ar.SeedBed
blacks7ar.OreMines
blacks7ar.BowPlugin
randyknapp.mods.epicloot

Installation

IMPORTANT: This is a PATCHER, not a regular plugin!

Download NoArbitraryIncompatibilityFlag.dll
Place it in BepInEx/patchers/ folder (NOT plugins!)
Launch the game
The patcher will automatically bypass incompatibility checks on startup

How It Works

This patcher uses Harmony to patch BepInEx's plugin loading system at runtime. Specifically, it patches the PluginInfo.Incompatibilities property getter to return an empty array for RtD mods only. This means:

BepInEx loads and inspects all plugin DLLs normally
When BepInEx checks incompatibilities for an RtD mod, our patch intercepts the check
For RtD mods, the check sees an empty incompatibility list
For other mods, incompatibility checks work normally
All plugins load successfully together

The patcher runs after the preloader phase completes, ensuring proper timing and compatibility with BepInEx's initialization process. No files are modified - all changes exist only in memory at runtime.

You'll see output like this:

[Info   :NoArbitraryIncompatibilityFlag] ✓ Ready to bypass incompatibility checks for RtD mods
[Info   :NoArbitraryIncompatibilityFlag] ✓ Found RtD mod: RtDOcean
[Info   :NoArbitraryIncompatibilityFlag] ✓ Found RtD mod: RtDMonsters
[Info   :NoArbitraryIncompatibilityFlag] ✓ Successfully bypassed incompatibility checks for 2 RtD mod(s)

Technical Details

This patcher uses the BepInEx preloader patcher contract with Harmony runtime patching:

Implements empty TargetDLLs and Patch() methods (no game assembly patching)
Uses Finish() method to apply Harmony patches after preloader completes
Patches PluginInfo.Incompatibilities getter with a Harmony prefix
The prefix checks if the plugin is an RtD mod (by GUID)
For RtD mods: returns empty array and skips original getter
For other mods: runs original getter normally
All changes are in-memory only and temporary
No files are ever modified

RtD mod GUIDs that are targeted:

Soloredis.RtDOcean, Soloredis.RtDVines, Soloredis.RtDMonsters
Soloredis.RtDSouls, Soloredis.RtDBiomes, Soloredis.RtDMonstrum
Soloredis.RtDDungeons, Soloredis.RtDFairyTale, Soloredis.RtDGardening
Soloredis.RtDHorrors, Soloredis.RtDItems, Soloredis.RtDMagic
Soloredis.RtDSouls_Addon

FAQ

Q: Does this modify any files?
A: No. All modifications happen in memory at runtime using Harmony. No DLL files are ever modified.

Q: Is this safe?
A: Yes. The patcher only bypasses compatibility checks. The mods function normally, they just don't block each other anymore.

Q: Will this break my game?
A: No. If you encounter any issues, they would be unrelated to this patcher. You can always remove the patcher to restore original behavior.

Q: Do I need to reinstall after RtD mod updates?
A: No. The patcher runs on every launch and automatically bypasses incompatibility checks regardless of mod versions.

Q: Will this work with old versions of RtD mods?
A: Yes. The patcher works with any version of RtD mods.

Q: What if I want to restore the original behavior?
A: Simply remove this patcher from the patchers folder. Since no files are modified, the RtD mods will immediately return to their original behavior with all restrictions intact.

Q: Does this work with other mods besides RtD?
A: No. This patcher specifically targets only RtD mods by their GUID. Other mods' incompatibility flags are left intact, as some incompatibility flags are legitimate and necessary.