CoOp:Anything: latest releases

RPCN 1.12.1 · RPCN

Tue, 20 Oct 2026 00:00:00 +0000

RPCN (Emulator netplay): B tier (Playable), playable.

Matchmaking server for RPCS3 that restores a game's own online modes; it does not add co-op to single-player titles. AGPL-3.0, with Docker images and community kits listed for specific games.

Release notes

MegaManXSNESRecomp (X and Zero co-op) v2.2.12-alpha · Mega Man X

Tue, 20 Oct 2026 00:00:00 +0000

Mega Man X (Decomp port): A tier (Complete), playable.

Native PC recompilation with playable Zero, couch co-op and online netplay through the shared recomp-net lobby and relay (LAN and direct IP too). Players supply their own ROMs.

Release notes

MegaManX4Recomp (X and Zero co-op) v0.1.1-coop-playtest.42 · Mega Man X4

Tue, 20 Oct 2026 00:00:00 +0000

Mega Man X4 (Decomp port): C tier (Rough), in development.

Native PC recompilation for Windows and Linux with two-player co-op through X's or Zero's campaign, local or netplay (recomp-net), unified or experimental split camera. Player 1 owns story progress. MIT.

Release notes

pd-friends-of-joanna friends-of-joanna-v0.3.9.2 · Perfect Dark

Tue, 20 Oct 2026 00:00:00 +0000

Perfect Dark (Fork or port): D tier (Experimental), in development.

Local-multiplayer fork that replaces Co-Operative and Counter-Operative with a 2 to 4 player Team Missions PvE/PvP mode; AI co-op buddies were removed. Not described as networked.

Release notes

Jericho Co-op v0.2 · Clive Barker's Jericho

Tue, 20 Oct 2026 00:00:00 +0000

Clive Barker's Jericho (Mod): D tier (Experimental), in development.

Each player controls one squad member, AI keeps the rest. ENet transport in a dinput8.dll proxy (exe untouched), host-authoritative enemies, story triggers, scenes and level changes; first-person cutscenes from each player's own character. Tested with two real game instances and a headless bot; no full playthrough. MIT. Write-up in games/clive-barkers-jericho.

Release notes

fallout1-coop v1.19 · Fallout

Tue, 20 Oct 2026 00:00:00 +0000

Fallout (Fork or port): C tier (Rough), partial.

Two-player co-op on Fallout Community Edition over LAN, internet or one PC, each with their own character. Online server list needs a separate co-op server. Release 1.5.9 seen, last push 2026-10-16.

Release notes

ACGC-PC-Multiplayer v0.4.1 · Animal Crossing (GameCube)

Mon, 19 Oct 2026 00:00:00 +0000

Animal Crossing (GameCube) (Decomp port): C tier (Rough), partial.

Fork of flyngmt/ACGC-PC-Port with host/client and dedicated-server multiplayer on the multiplayer branch; recent commits sync wildlife, museum letters, Able Sisters trades, house upgrades and PvP tool hits. README calls it a beta that can desync and damage saves; USA Rev 0 disc only, Windows launcher, release 0.2.1 per commit log.

Release notes

NB-Multiplayer v2.2.9 · Banjo-Kazooie: Nuts & Bolts

Mon, 19 Oct 2026 00:00:00 +0000

Banjo-Kazooie: Nuts & Bolts (Mod): C tier (Rough), partial.

Runs the game's own Xbox LIVE style races and sports over Steam, and adds a Showdown Town single-player co-op mode where players see each other's vehicles and build together. Player count for the co-op mode is not stated.

Release notes

Half Sword Multiplayer Mod (HSMMod) v0.4.0-pre5 · Half Sword

Mon, 19 Oct 2026 00:00:00 +0000

Half Sword (Mod): D tier (Experimental), in development.

Online multiplayer for a single-player game in one drop-in DLL. Steam lobbies and invites, each player simulates their own fighter, hits go through the game's own damage code, gore, grabs and dropped weapons synced; match modes, chat, spectating. Pre-release v0.4, first two-player test done and its fixes released. Tied to one game build.

Release notes

Anchor (built into Ship of Harkinian) 9.3.1 · The Legend of Zelda: Ocarina of Time

Sun, 18 Oct 2026 00:00:00 +0000

The Legend of Zelda: Ocarina of Time (Decomp port): B tier (Playable), playable.

Merged upstream on 2025-11-14 (PR 4910), not January 2026 as in the seed; packets cover player updates, item gives, flag set/unset, dungeon items and teleports, and the OOT-True-Co-op README says enemies are not shared by Anchor. Default public relay anchor.hm64.org:43383 or self-host; open Anchor sync bugs exist on the Shipwright issue tracker.

Release notes

Birdman64 (two-player split-screen) v1.5.0 · Pilotwings 64

Sun, 18 Oct 2026 00:00:00 +0000

Pilotwings 64 (Decomp port): B tier (Playable), playable.

Native PC port (Windows, Linux, experimental Android) that adds two-player split-screen to a single-player game; both players fly the same test with their own controller, HUD and score. Local only, MIT, bring your own ROM.

Release notes

ww-multiplayer v0.4.1 · The Legend of Zelda: The Wind Waker

Sun, 18 Oct 2026 00:00:00 +0000

The Legend of Zelda: The Wind Waker (Mod): D tier (Experimental), in development.

Shares positions and skeletal poses over TCP so each player sees the other's Link; room transitions are not handled yet and only Outset Island is heavily tested.

Release notes

ocarina-coop v1.0.1 · The Legend of Zelda: Ocarina of Time

Sun, 18 Oct 2026 00:00:00 +0000

The Legend of Zelda: Ocarina of Time (Fork or port): D tier (Experimental), in development.

Fork of Shipwright-Online that fixes its listed co-op bugs (switch sync, cutscene softlocks, day and night, water levels so far; bosses, enemies and later dungeons in progress). Fixes are checked by code review and compilation only; no two-client session has run yet. No release yet.

Release notes

crysis-coop (SeniorStackOverflow) v0.11.41 · Crysis

Sun, 18 Oct 2026 00:00:00 +0000

Crysis (Mod): C tier (Rough), in development.

A separate, brand-new C++/Lua mod for 2-4 players, internet play via join codes with hole punching or relay, release v0.11.35 on 2026-10-15. Host runs the full single-player simulation; includes a bot or AI-agent companion. README calls Crysis 1 co-op-less, so it is not the older Crysis Co-op mod.

Release notes

W3Coop (Witcher Online for Remastered) v0.1.0 · The Witcher 3: Wild Hunt

Sun, 18 Oct 2026 00:00:00 +0000

The Witcher 3: Wild Hunt (Fork or port): C tier (Rough), in development.

Port of Witcher Online to Remastered 5.01 (Steam). Client reads script strings as UTF-8, scripts moved to the 5.x API, Custom Player Characters and Chill Out replaced by stand-ins, Gwent duels off. w3relay carries the traffic over Steam (Spacewar, friends-only lobby), so nobody forwards ports. Two automated two-client tests pass on one PC (players visible, movement, also through the relay over a mock Steam); a join between two real Steam accounts, chat, emotes and party sync are untested. Pre-release v0.1.0. Port GPL-3.0, relay and harness MIT.

Release notes

HX + HXFix + HXCoop (deus-ex-coop) v0.2.0 · Deus Ex

Sat, 17 Oct 2026 00:00:00 +0000

Deus Ex (Mod): A tier (Complete), playable.

Fix package and Steam relay on top of HX 0.9.89.4, with an automated test suite of real game clients (including relay, lag and packet loss runs). Not yet a full human playthrough.

Release notes

Dungeon Keeper Co-op (shared keeper, coop-anything) v0.1.2 · Dungeon Keeper

Sat, 17 Oct 2026 00:00:00 +0000

Dungeon Keeper (Fork or port): C tier (Rough), in development.

Several players control one keeper on KeeperFX with a shared campaign, partner hands shown in each player's colour, and Steam lobby networking (AppID 480) or direct IP. Tested by an in-game bot with real game clients.

Release notes

Shadow of COOP fixes (stalker-soc-coop-fixes) v1.2.0 · S.T.A.L.K.E.R.: Shadow of Chernobyl

Sat, 17 Oct 2026 00:00:00 +0000

S.T.A.L.K.E.R.: Shadow of Chernobyl (Mod): A tier (Complete), playable.

Unofficial fix patch on top of Shadow of COOP 8.0 (an extra .db appended to coop.addon). Fixes crashes and stuck quests and unlocks the true ending. All 18 levels boot-tested on a dedicated server and an in-engine self-test passes 20 of 20; no scripted full story run or automated two-client run yet. Tools MIT; patched files remain Shadow of COOP / GSC files.

Release notes

Jak 3 Online v5.0.1 · Jak 3

Sat, 17 Oct 2026 00:00:00 +0000

Jak 3 (Mod): D tier (Experimental), in development.

French-language online world mod with a companion exe for network, profile, shop and anti-cheat; the same author has separate Jak 2 and Jak 3 co-op repos. Details are thin.

Release notes

Stacklands Co-op v0.1.0 · Stacklands

Sat, 17 Oct 2026 00:00:00 +0000

Stacklands (Mod): C tier (Rough), in development.

Host-authoritative mirror on the official mod loader. Joiners' sims are frozen and their input is replayed on the host. LAN/IP is covered by a 13-check two-instance automated test; Steam lobbies are untested. Write-up in games/stacklands.

Release notes

jak3-multiplayer multiplayer-v1.0.1 · Jak 3

Fri, 16 Oct 2026 00:00:00 +0000

Jak 3 (Mod): C tier (Rough), in development.

Host picks Free roam or Co-op; guests load the host's world, enemies, pickups and mission completion are shared, and co-op keeps guests near the host. Distributed through the OpenGOAL launcher per the README; ISC license.

Release notes

SilphNet v1.18.0 · Pokemon Red/Blue (Gen 1 Recomp)

Thu, 15 Oct 2026 00:00:00 +0000

Pokemon Red/Blue (Gen 1 Recomp) (Mod): B tier (Playable), playable.

Presence mod only: friends list, last known map location and gym badge signs, with no live movement and a lightweight PHP server hosted by the author. Listed for completeness, not true co-op.

Release notes

MMChat v0.7.0 · The Legend of Zelda: Majora's Mask

Thu, 15 Oct 2026 00:00:00 +0000

The Legend of Zelda: Majora's Mask (Mod): D tier (Experimental), in development.

Text chat mod for Majora's Mask Recompiled with a co-op sync layer that merges shared values through a player-run relay server (spec in docs/coop-sync-spec.md). Has end-to-end network tests that drive the native library against a real server, but they do not drive real game clients and no playthrough is documented.

Release notes

WW-Online v0.7.0 · The Legend of Zelda: The Wind Waker

Tue, 13 Oct 2026 00:00:00 +0000

The Legend of Zelda: The Wind Waker (Mod): C tier (Rough), in development.

Room owner picks what is shared, including story progress, the Nintendo Gallery and a delivery bag of quest items; you see up to three other players as animated Links. README labels it early development and requires matching versions.

Release notes

GoldenEye 007 Plus #17 · GoldenEye 007

Mon, 12 Oct 2026 00:00:00 +0000

GoldenEye 007 (Fork or port): B tier (Playable), partial.

Expanded 1 to 4 player campaign co-op with shared mission items, objectives and Perfect Dark style AI simulants; the README does not describe networking, so assume local play.

Release notes

Heroes of Twilight v2.1.0 · The Legend of Zelda: Twilight Princess

Sun, 11 Oct 2026 00:00:00 +0000

The Legend of Zelda: Twilight Princess (Fork or port): C tier (Rough), partial.

Expansion of Crests of Courage with two multiplayer modes, started so the author could play with their kids; everyone must run the same mod version.

Release notes

Crests of Courage v1.10.0 · The Legend of Zelda: Twilight Princess

Sat, 10 Oct 2026 00:00:00 +0000

The Legend of Zelda: Twilight Princess (Mod): C tier (Rough), partial.

Online co-op mod for Dusklight where one player hosts, others join by room code (a small server brokers codes, Tailscale or direct address also work), and joining loads the host's save after backing up yours. Seed called it Dusk; the actively developed reimplementation is Dusklight.

Release notes

SACoop v0.48.4-prealpha · Grand Theft Auto: San Andreas

Mon, 05 Oct 2026 00:00:00 +0000

Grand Theft Auto: San Andreas (Mod): D tier (Experimental), in development.

Pre-alpha by the VCCoop authors. Currently two to four players see each other in the same city; no vehicles, shared missions, combat or co-op menu yet. Last push 2026-10.

Release notes

KyleBuildsAI/cp2077-coop v0.0.37-game-bundle.1 · Cyberpunk 2077

Mon, 05 Oct 2026 00:00:00 +0000

Cyberpunk 2077 (Mod): D tier (Experimental), in development.

Two-player co-op for game 2.31a via CET, redscript and RED4ext, with the partner shown as a stand-in NPC. The repo has test bench tooling and headless tests, so qa is automated only for those smoke tests, not a real playthrough.

Release notes

Archipelago 0.6.8 · Archipelago

Sun, 04 Oct 2026 00:00:00 +0000

Archipelago (Framework or tool): B tier (Playable), playable.

Multiworld randomizer whose worlds folder includes oot, tloz, tww, sm, smz3, alttp, sm64ex, smw, pokemon_rb, pokemon_emerald, kh1, kh2 and jakanddaxter. Items are exchanged between slots, and the protocol doc says coop (several clients on one slot) is handled by the server.

Release notes

Tilted Evolution (Tilted Online) v1.8.3 · The Elder Scrolls V: Skyrim

Sat, 03 Oct 2026 00:00:00 +0000

The Elder Scrolls V: Skyrim (Framework or tool): C tier (Rough), partial.

Multiplayer framework that currently supports Skyrim Special Edition. 1,186 stars, last push 2026-10-15.

Release notes

fallout1-companion-coop v0.6 · Fallout

Sat, 03 Oct 2026 00:00:00 +0000

Fallout (Fork or port): C tier (Rough), in development.

Host plays normally and the second player joins as a human-controlled companion. Author calls it early and rough; v0.6 adds combat sync, known VPN issues and no companion combat perks.

Release notes

7 Days to Zelda evidence-pha3939 · The Legend of Zelda: Ocarina of Time

Sat, 03 Oct 2026 00:00:00 +0000

The Legend of Zelda: Ocarina of Time (Fork or port): D tier (Experimental), in development.

Survival and base-building spin on OOT True Co-op with a WebAssembly build and a web lobby that hosts an Anchor relay over WebSocket. README lists Anchor co-op sync of enemies, bosses, cutscenes and effects inherited from the parent.

Release notes

RDR2Coop (Chimiscuilo123) v1.0.0 · Red Dead Redemption 2

Thu, 01 Oct 2026 00:00:00 +0000

Red Dead Redemption 2 (Mod): D tier (Experimental), in development.

C++ ScriptHookRDR2 client with C# server syncing players, horses, entities and game events in Story Mode; tested on an offline game version.

Release notes

arx-fatalis-coop (kingzmanh) v0.24 · Arx Fatalis

Tue, 29 Sep 2026 00:00:00 +0000

Arx Fatalis (Fork or port): C tier (Rough), in development.

Two-player co-op on Arx Libertatis with shared quests and proximity voice chat; marked early work in progress, release 0.22, GPL-3.0. Author says it has never been properly tested over the internet. Last push 2026-09-29.

Release notes

JACoop v2026.09.29-RT · Star Wars Jedi Knight: Jedi Academy

Tue, 29 Sep 2026 00:00:00 +0000

Star Wars Jedi Knight: Jedi Academy (Mod): B tier (Playable), partial.

GPL-2.0 single-player campaign co-op on OpenJK, 2 to 16 players per current listings (the GitHub readme header still says 2 to 4). Each player keeps their own character and force powers; releases on GitHub, Nexus and JKHub. The main repo koevetmc/JACoop returned not found. No Jedi Outcast co-op was found.

Release notes

Zelda3-Multiplayer Zelda3 · The Legend of Zelda: A Link to the Past

Wed, 16 Sep 2026 00:00:00 +0000

The Legend of Zelda: A Link to the Past (Fork or port): D tier (Experimental), in development.

Author claims synchronized enemies, items and other shared elements over LAN; README suggests Radmin VPN or Hamachi for remote play. One star and only author claims at check time.

Release notes

ArxCoop (Parricidium) v2026.09.14aj · Arx Fatalis

Mon, 14 Sep 2026 00:00:00 +0000

Arx Fatalis (Fork or port): C tier (Rough), in development.

2 to 4 player co-op fork of Arx Libertatis with English and French support, HD and classic builds (all players need the same version). Designed for LAN or VPN and never tested over real internet latency. GPL-3.0, last push 2026-09-24.

Release notes

Silent Hill: United v0.0.5 · Silent Hill

Thu, 03 Sep 2026 00:00:00 +0000

Silent Hill (Mod): B tier (Playable), partial.

Unofficial PC multiplayer for Silent Hill 1 with an in-game online lobby, Harry and Lisa roles and a live partner map. The repo hosts releases only, source is not public. Last push 2026-09-03; you supply your own game image.

Release notes

rdr2-coop-story v0.32.0-tester.3 · Red Dead Redemption 2

Mon, 31 Aug 2026 00:00:00 +0000

Red Dead Redemption 2 (Mod): D tier (Experimental), abandoned.

Archived source foundation for experimental two-player replication in Story Mode, over LAN or Hamachi. Author notes Rockstar's mod policy excludes multiplayer. The seed assumed no RDR2 story co-op project existed; several exist.

Release notes

Nucleus Co-op v2.4.2 · Nucleus Co-op

Sun, 23 Aug 2026 00:00:00 +0000

Nucleus Co-op (Framework or tool): B tier (Playable), playable.

Local split-screen tool for Windows that starts multiple instances with separated input; it does not add network multiplayer to single-player games (the game needs its own multiplayer or LAN). GPL-3.0; the original lucasassislar repo is stale (2023-12).

Release notes

BanjoCoop v0.2.0 · Banjo-Kazooie

Sat, 22 Aug 2026 00:00:00 +0000

Banjo-Kazooie (Mod): D tier (Experimental), in development.

README separates what was played (two players, puppets, shared notes, jiggies and flags) from what is only tested off-game (enemies, bosses, revive, party modes). No release was published at check time.

Release notes

Lighthouse (Anchor multiplayer) 1.1.0 · Banjo-Kazooie

Mon, 17 Aug 2026 00:00:00 +0000

Banjo-Kazooie (Decomp port): B tier (Playable), playable.

Repo description advertises Anchor multiplayer, romhack support and a randomizer; Anchor sources and a VileSync file exist in the tree and release Hatteras Alfa 1.1.0 is dated 2026-08-17. What Anchor syncs in this port is not documented in the README.

Release notes

fallout2-ce-coop v0.4 · Fallout 2

Thu, 13 Aug 2026 00:00:00 +0000

Fallout 2 (Fork or port): B tier (Playable), partial.

Dedicated server plus network-viewer client on Fallout 2 CE with per-player characters, shared combat, dialog and barter; host drives map and dialog transitions. README says it is AI-assisted and combat sync is a known soft spot. Release v0.4, 2026-08.

Release notes

KeeperFX Archon mode (shared keeper) v1.4.0 · Dungeon Keeper

Sat, 04 Jul 2026 00:00:00 +0000

Dungeon Keeper (Fork or port): D tier (Experimental), in development.

Upstream KeeperFX (GPL-2.0, release v1.4.0 on 2026-07-04) is merging a UserState refactor that separates users from players, the groundwork for several users controlling one keeper. PRs 5178, 5229, 5248 and 5428 merged between 2026-09-06 and 2026-10-13; no finished co-op mode was seen.

Release notes

PULSAR v0.3.0 · Starfield

Sat, 04 Jul 2026 00:00:00 +0000

Starfield (Mod): D tier (Experimental), abandoned.

Two-player co-op via SFSE plugin plus relay and lobby backend, GPL-3.0, no longer maintained and open for takeover. Targets Starfield 1.16.244 on Steam; official lobby funded until end of 2026. Strong revival candidate.

Release notes

Archipelago-SoH Soh_1.4.2 · The Legend of Zelda: Ocarina of Time

Fri, 03 Jul 2026 00:00:00 +0000

The Legend of Zelda: Ocarina of Time (Fork or port): C tier (Rough), partial.

Multiworld randomizer link, so items found in one game are sent to other players' games; it does not put players in a shared world. An Android port bundles the same client.

Release notes

Coop Evolved 1.10.1 · Halo: Combat Evolved

Tue, 23 Jun 2026 00:00:00 +0000

Halo: Combat Evolved (Mod): B tier (Playable), playable.

Adapts the campaign maps for network co-op using a modified dedicated server with SAPP; README lists known issues with AI weapons and positions and some vehicles. Latest release 1.10.1 on 2026-06-23, GPL-3.0. Separate from the official Halo: Campaign Evolved remake.

Release notes

perfect-dark-2 (PD2) v0.1.102 · Perfect Dark

Thu, 18 Jun 2026 00:00:00 +0000

Perfect Dark (Fork or port): D tier (Experimental), in development.

Description claims server-authoritative multiplayer with a dynamic mod loader, hosting either in the client or via a PerfectDarkServer; the README does not say whether campaign co-op is networked.

Release notes

sm64coopdx v1.5.1 · Super Mario 64

Mon, 01 Jun 2026 00:00:00 +0000

Super Mario 64 (Decomp port): B tier (Playable), playable.

README says it synchronizes all entities and every level so players share one world, with a Lua modding API; latest release v1.5.1 on 2026-06-01 with 81 open issues and 45 open PRs at check time. License not shown in the captured README.

Release notes