Event Horizon

Void Fiend's domain expansion. Tear the entire stage into a blue-violet cosmic void beneath a physical black hole. Deal damage to charge the meter, then press T to unfold Event Horizon instantly for 22 seconds.

Watch / download the gameplay demo

The demo was recorded during development and shows the old duration and test button. This release lasts 22 seconds and has no test key or free-cast button.

Inside the domain

• Open, stage-wide transformation: animated nebulae, stars, faded scenery, dark terrain, and a fixed black hole with a glowing accretion disk. No spherical boundary.
• Incapacitate and pull: hostiles throughout the stage are incapacitated and slowly drawn toward the black hole. Native collision and immovable-body constraints remain in effect.
• Stacking fire near the core: every continuous second within 12 meters of the black hole's surface adds a native Burn stack lasting 4 seconds. Leaving resets the partial interval; existing burns can outlast the domain.
• Projectile distortion: supported hostile projectiles curve, slow, and can be absorbed. Friendly shots are preserved; custom projectile movers are conservatively excluded.
• Singularity Attunement: Void Fiend gains 20% movement speed and a gentler fall-speed cap while the domain is active.
• Opening impact and soundtrack: the impact plays immediately. Event Horizon's soundtrack replaces the regular RoR2 music while active; the game's music comes back when it ends or is interrupted. Combat sounds remain audible. The presentation dissolves after expiry and restores the stage.

Your normal skills and corruption system remain available. This package contains only Void Fiend's Event Horizon.

Earn each cast

Deal damage to enemies to fill the on-screen meter. The default requirement is 100 times your level-scaled base damage. Charge persists on your character master between stages and does not build while the domain is active. Casting spends the entire meter. Press T when ready; the activation key is configurable.

Installation

Install with r2modman or Thunderstore Mod Manager and launch modded. BepInExPack and RoR2BepInExPack install as dependencies. For manual installation, install both dependency packs, then copy plugins/EventHorizon into BepInEx/plugins. Restart the game after installing.

Do not enable this alongside the private Survivor Domains development pack, which already contains Event Horizon.

Configuration

After the first launch, edit BepInEx/config/wreckzog.eventhorizon.cfg with the game closed. Configure the activation key, charge requirement, duration, pull, incapacitation, burns, projectile distortion, visuals, and audio. The default activation has no wind-up delay and a rapid 0.3-second reveal included within the 22-second active lifetime.

For sound, use [Audio] Enabled and Volume. The custom soundtrack uses Windows audio output and is independent of the game's music/SFX sliders; gain changes apply on the next cast.

Compatibility

• Built against the current installed Windows version of Risk of Rain 2. Void Fiend requires the corresponding game content and survivor unlock.
• The full environmental projection uses Direct3D 11. Other renderers can fall back to geometric effects without the projected environment.
• Every co-op participant should install the same version. Gameplay is server-authoritative; a fresh multiplayer playtest of this standalone release is pending.
• Custom soundtrack playback currently targets Windows.

Made with Codex / ChatGPT. The thumbnail is edited artwork based on the in-game black hole; the linked video is gameplay.