RevivalSync

Made by Revival

Source code — help welcome: https://github.com/Vladtheosis/RevivalSync (issues, bug reports with logs, and pull requests are all appreciated; see DEVLOG.md there for the architecture and lessons learned)

One mod that makes R.E.P.O. multiplayer feel like singleplayer — the successor to (and merger of) NetworkingRevived and NetworkTweaksRevived, rebuilt on the architecture of the original NetworkingReworked with its host-state capture technique.

Credits: several core techniques are adopted from readthisifbad's NetworkingReworked — the raw host-state capture, the fully-local door model with event-level reconciliation, and the release-state overwrite that makes throws fly clean. Thank you.

What it does (client-side only — works with unmodded hosts)

Instant grabs: valuables, props, items and carts respond the moment you grab them, no host round trip. Carts follow you at full speed with the game's real steering feel; weapons aim with your camera using their own orientation tuning; throws fly the way you threw them. Only self-moving objects (vehicles, drones, the duck) use the game's normal sync.
Instant doors: doors and cabinets run the game's own hinge logic locally, so they swing the moment you touch them (the host still decides when they break).
Synced world: everything you're not holding glides smoothly toward the host's authoritative state, so desync cannot accumulate. Wedged/stuck objects snap free.
Smooth everything else: enemies and other host-driven objects move with snapshot interpolation instead of choppy stepping.
No random timeout kicks: Photon's client-side disconnect timer is neutralized via Photon's own settings (zero patches).
Faster networking: packets processed every rendered frame.

Item effects — damage, explosions, battery drain, breaking — stay host-decided exactly like vanilla; only the physics feel is local.

Known issues

Doors and cupboards can occasionally appear desynced from what the host sees (e.g. open on one screen, closed on the other). This is actively being worked on — if it happens to you, a report with Verbose Logging on and your LogOutput.log attached helps a lot.

Both players can (and should) install it — it automatically does nothing while you're the host and activates when you're the client.

Config

BepInEx/config/com.Revival.revivalsync.cfg (or the in-game mod settings menu if you use REPOConfig). Three sections:

1. Main — plain on/off switches (instant carts / doors / items, no timeout kicks, smooth enemies). Safe to flip; everything defaults to ON.
2. Fine-Tuning — numbers for how firmly things sync. The defaults are good; touch only if you're troubleshooting something specific.
3. Debug — Verbose Logging: turn ON before reporting a bug and include your BepInEx/LogOutput.log with the report.

Install

Install BepInEx (BepInExPack for R.E.P.O.).
Drop RevivalSync.dll into BepInEx/plugins.
Remove NetworkingRevived, NetworkTweaksRevived, NetworkingReworked and REPONetworkTweaks if you still have them — RevivalSync replaces all of them and will warn if they're present.

RevivalSync

Made by Revival

What it does (client-side only — works with unmodded hosts)

Instant grabs: valuables, props, items and carts respond the moment you grab them, no host round trip. Carts follow you at full speed with the game's real steering feel; weapons aim with your camera using their own orientation tuning; throws fly the way you threw them. Only self-moving objects (vehicles, drones, the duck) use the game's normal sync.

Instant doors: doors and cabinets run the game's own hinge logic locally, so they swing the moment you touch them (the host still decides when they break).

Synced world: everything you're not holding glides smoothly toward the host's authoritative state, so desync cannot accumulate. Wedged/stuck objects snap free.

Smooth everything else: enemies and other host-driven objects move with snapshot interpolation instead of choppy stepping.

No random timeout kicks: Photon's client-side disconnect timer is neutralized via Photon's own settings (zero patches).

Faster networking: packets processed every rendered frame.

Item effects — damage, explosions, battery drain, breaking — stay host-decided exactly like vanilla; only the physics feel is local.

Known issues

Doors and cupboards can occasionally appear desynced from what the host sees (e.g. open on one screen, closed on the other). This is actively being worked on — if it happens to you, a report with Verbose Logging on and your LogOutput.log attached helps a lot.

Both players can (and should) install it — it automatically does nothing while you're the host and activates when you're the client.

Config

BepInEx/config/com.Revival.revivalsync.cfg (or the in-game mod settings menu if you use REPOConfig). Three sections:

1. Main — plain on/off switches (instant carts / doors / items, no timeout kicks, smooth enemies). Safe to flip; everything defaults to ON.

2. Fine-Tuning — numbers for how firmly things sync. The defaults are good; touch only if you're troubleshooting something specific.

3. Debug — Verbose Logging: turn ON before reporting a bug and include your BepInEx/LogOutput.log with the report.