VenganceSwarmRedux
Fixes Doppelgangers (Umbras) skin synchronization and item/drop distribution when using Artifact of Vengeance and Artifact of Swarms.
About this mod Author’s original text
Vengeance Swarm Redux
A modern revival and comprehensive fix for the ancient Risk of Rain 2 Doppelganger (Umbra) bugs when playing with Artifact of Vengeance and Artifact of Swarms.
This mod is a modern continuation and revival of the original VengeanceSwarmFix by Melting-Cube, modernized for the current version of Risk of Rain 2 with skin synchronization, Risk of Options support, and high population spawn protection.
⚔️ Key Features & Fixes
- Item Synchronization: Fixes the base game bug where pooled item arrays were cleared upon the first clone spawning, causing the second Swarms Doppelganger to spawn with 0 player items and missing InvadingDoppelganger. Both clones now receive your full inventory and equipment.
- Skin Synchronization: Fixes the race condition where ModelSkinController initialized before CharacterBody / CharacterMaster linked the survivor's loadout, causing Doppelgangers to revert to default Skin 0. Both clones now correctly wear your selected survivor skin (including mastery, alt, and DLC skins).
- Guaranteed Item Drops: Because both clones now properly receive the InvadingDoppelganger item, defeating both clones will drop loot.
- High Population Fix: Ensures Swarms Doppelganger spawn requests ignore team member limits so high monster density never prevents your clones from appearing.
- In-Game Configuration: Full support for Risk of Options allowing you to toggle individual fixes, choose single vs dual loot drops, or enable debug logging.
⚙️ Configuration
Settings can be customized in-game via Risk of Options or by editing BepInEx/config/com.FortressForce.VengeanceSwarmRedux.cfg:
| Setting | Default | Description |
|:--- |:--- |:--- |
| Enabled | true | Enables or disables the mod. |
| Allow Both Swarm Drops | true | If true, both Swarms clones drop an item on death. If false, only one drop is awarded per invasion. |
| High Population Fix | true | Prevents map team limits from blocking Swarms Doppelganger spawns. |
| Enable Debug Logging | false | Outputs detailed spawn and skin logs to the BepInEx console. |
📦 Installation
- Install using r2modman or your favorite mod manager.
- For manual installation, extract VenganceSwarmRedux.dll into your Risk of Rain 2/BepInEx/plugins/ directory.
📜 Credits & Attribution
- Original mod and concept by Melting-Cube (VengeanceSwarmFix).
- Revived, modernized, and maintained by Gentlemann-Of-Hats.
📝 Recent Patches
v1.0.0
- Initial release of Vengeance Swarm Redux.
- Fixed Doppelganger Swarms inventory clearing bug.
- Fixed Doppelganger skin initialization race condition on server and clients.
- Added Risk of Options integration.
Install & use Install: BepInEx plugin
- The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
- Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
- Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
- Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.
Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.
Install these first, or the mod will not work: