50 open-source Dead MMOs projects

Dead MMOs (Online Service Revivals): open-source projects that exist because someone reverse engineered a closed product, sorted by GitHub stars.

1. Arrowgene.DragonsDogmaOnline★ 241 · active · C#

   Server emulator for Dragon's Dogma Online

2. WarEmu★ 129 · slowing · C#

   Warhammer Online 1.4.8 server emulator

3. NFS-World-Offline★ 53 · active · JavaScript

   Node.js server emulator to play Need for Speed: World locally

4. Centuria★ 42 · active · Java

   Server emulator for the defunct MMORPG Fer.al

5. ProjectWAR★ 39 · active · C#

   Warhammer Online server emulator

6. aisp-emu★ 34 · active · C#

   Server emulator for AI Sp@ce, a Japanese MMO that shut down over 15 years ago

7. Sanctuary★ 34 · active · C#

   Server emulator for Free Realms written from scratch in C#

8. Nomad★ 32 · dormant · Java

   Metal Gear Online 2 server emulator in Java

9. eoserv★ 31 · dormant · C++

   Server emulator for the Endless Online MMO

10. anotherland★ 30 · active · Rust

    Server emulator for the Otherland MMO

11. DCNC★ 25 · dormant · C#

    Server emulator for Drift City NeoCity

12. WLUS★ 22 · archived · Python

    LEGO Universe server emulator by Wesley

13. apypos-server★ 21 · active · TypeScript

    Server emulator for Monster Hunter Explore (MHXR)

14. BFBC2_MasterServer★ 21 · active · Python

    Master server emulator that replaces the original for Battlefield: Bad Company 2

15. iceee★ 19 · slowing · C++

    TAWD server that keeps the abandoned Earth Eternal MMO running

16. nio2so★ 19 · active · C#

    Server emulator for The Sims Online pre-alpha and play-test clients

17. reoserv★ 18 · active · Rust

    Endless Online server emulator written in Rust

18. Garlemald-Server★ 17 · active · Rust

    Rust port of Project Meteor, a server emulator for Final Fantasy XIV 1.0

19. RelentlessZero★ 17 · archived · C#

    Server emulator for Mojang's Scrolls

20. kakia-lime-odyssey-server★ 14 · active · C#

    Private server emulator for Lime Odyssey

21. sunlight★ 14 · active · C#

    Server emulator for Love Live! School Idol Festival

22. uberstrok★ 13 · archived · C#

    UberStrike server emulator

23. MHServerEmu2013★ 12 · active · C#

    Server emulator for the 2013 vanilla release of Marvel Heroes

24. PhatAC★ 12 · dormant · C++

    Server emulator for Asheron's Call

25. EmuFeral★ 11 · archived · Java

    Server emulator for the closed MMORPG Fer.al

26. PyLUS★ 11 · slowing · Python

    LEGO Universe server emulator in Python

27. blaze★ 10 · active · Rust

    EA Blaze server emulator for Mirror's Edge Catalyst after EA's shutdown, in Rust

28. JALUS★ 10 · dormant · HTML

    Proof-of-concept LEGO Universe server emulator in C++

29. mgmse★ 10 · archived · PHP

    Modern master server emulator for GameSpy-era PC games

30. OpenGalaxies★ 10 · dormant · C++

    Open-source Star Wars Galaxies server emulator

31. BFHeroes_MasterServer★ 9 · dormant · Python

    Master server emulator for Battlefield Heroes

32. DragaliaBaasServer★ 9 · slowing · C#

    Account backend reimplementation for Dragalia Lost server emulators

33. bezgelor★ 8 · active · Elixir

    WildStar server emulator

34. darkspore_server★ 8 · dormant · C++

    Server emulator for EA's Darkspore

35. gateway★ 8 · active · Rust

    Mirror's Edge Catalyst gateway server emulator written in Rust

36. tinns★ 8 · dormant · C++

    TinNS server emulator for the Neocron MMO

37. ACServer★ 7 · dormant · C++

    Early Asheron's Call server emulator

38. HasbroPBEMProxy★ 7 · slowing · HTML

    Server emulator for the Hasbro Em@il Games clients

39. mxoemu1★ 7 · dormant · Python

    Server emulator for The Matrix Online with doors and hardlines

40. OpenLU★ 7 · archived · C#

    LEGO Universe server emulator in F#

41. SIM-Theme-Park-Online★ 7 · active · C#

    Server emulator for SIM Theme Park Online version 1.0

42. Cimmeria★ 6 · active · Rust

    Server emulator for the cancelled Stargate Worlds MMO

43. open-ds2-server★ 5 · active · C++

    Server emulator that restores Dead Space 2 (PC) multiplayer over EA's Blaze protocol

44. gsmaster★ 4 · active · C

    GameSpy EncType 0/1 master server emulator for Quake, QuakeWorld, Hexen 2 and similar games

45. openge★ 4 · dormant · Java

    Star Wars Galaxies server emulator based on the final publish

46. Soulstorm-GameSpy-Emulator★ 4 · dormant · C#

    GameSpy service emulator for Warhammer 40,000: Dawn of War - Soulstorm online play

47. TL2BetaMiniLobby★ 4 · slowing · C#

    Lobby server emulator for the Torchlight 2 beta

48. Luna★ 3 · dormant · MAXScript

    Experimental Endless Online server emulator with user-defined scripts

49. mgo3-server-emulator★ 3 · slowing · Python

    Server emulator to keep Metal Gear Online 3 (MGSV) multiplayer alive

50. ScaLUS★ 3 · dormant · Scala

    Akka actor based LEGO Universe server emulator in Scala