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Old School Ops presents

GoMMO

Framework

The MMORPGs we grew up on, back online. Every server here is written from scratch on one Go framework and speaks the original client byte for byte. Run your own world, mod it with GoMMO Studio, or play on ours once our servers are back up.

Choose your world Run your own server What is GoMMO
Select world11 worlds
Gate to Heavens
Gate to Heavens Modern Alpha v0.3.1 Gate to Heavens Classic Primary v0.3.1
RF Online
RF Online: Dragonborn Primary v0.4.0 RF Online: Age of Patron Maintained v0.2.0 RF Online 1.5 Primary v0.3.1 RF Online: Golden Age Primary v0.8.0 RF Online: Secret of Holystone Maintained v0.1.6 RF Online: Red Army Maintained v0.1.9 RF Online: Giga 4 Part 2 Maintained v0.3.9
World of Kung Fu
World of Kung Fu Alpha v0.2.0
DragonSoul
DragonSoul Alpha v0.1.3
No public servers while we rebuild our hosting. Every world ships as a bundle you can run. Downloads
Now showing Gate to Heavens · Liberty Heaven
[Release]GoMMO Studio v1.3.0 is out[Fixed]DS-009 The Pet Strengthening system isn't working., now in a release reported by Orion13[Idea]New idea IDEA-9: Language selector by RV[Forum]New thread: Ideas (Feature Requests),. UX Updates by Ron[Level]cybercyber reached level 10[Badge]facelessnm earned Shipped[Dev]460 commits to the framework this week[Release]DragonSoul v0.1.3 is out[Fixed]DS-008 The NPC "God of Wealth" script is missing., now in a release reported by Orion13[Idea]IDEA-7 No client download option available. is planned[Level]OSO AI reached level 10[Badge]asteriagame earned Shipped[Dev]Gate to Heavens Classic: 3 commits since v0.3.1[Release]RF Online: Golden Age v0.8.0 is out[Fixed]STU-007 ItemLooting.dat -> m_itmLootCodeKey error, now in a release reported by facelessnm[Idea]New idea IDEA-8: Middleman NPC by XanoX[Badge]kongzboy earned Shipped[Dev]Gate to Heavens Modern: 1 reported bug fixed in 117 commits since v0.3.1[Release]DragonSoul v0.1.2 is out[Fixed]STU-006 Some bugs Studio., now in a release reported by Rikkimaru[Idea]New idea IDEA-7: No client download option available. by DT[Badge]jonahmal earned Shipped[Dev]RF Online: Dragonborn: 12 reported bugs fixed in 4 commits since v0.2.0[Release]RF Online: Dragonborn v0.4.0 is out
The worlds

4 families. One engine room.

Each family is one original game, and each version of it is its own server, because the client changed between them.

Eight kingdoms · 1 version

DragonSoul

A fantasy MMO of eight warring kingdoms, with guilds, mounts, pets and a weekly nation war.

DragonSoul v0.1.3
The framework

What every world is built from

A fix to the core reaches every game, and a game added later starts with all of it in place. Game logic, opcodes and content stay with each game.

Shared Accounts

Core packagepkg/account · pkg/auth
  • One accounts database shared by every game on a server
  • Email login, argon2id password hashing
  • Staff levels granted per game; a ban blocks the account everywhere
  • Gate to Heavens and RF servers can sign players in with their oldschoolops.com account
"Made once. Used in every world."

SQLite and MySQL

Core packagepkg/database
  • SQLite by default, nothing to install
  • MySQL for production
  • One schema; the SQLite form is derived from it at run time
  • A server creates a missing or empty database on first start
"Unzip, run, and the tables are there."

Protocol Layer

Per familygames/*wire
  • Packet framing, ciphers and codecs, one package per game family
  • Opcodes and struct layouts live with each game
  • Every message matches the original client byte for byte
"Never trust a version number."

Build Isolation

Build ruleverify-split
  • Each game binary holds no code from another game
  • One gameserver process per game, serving all its worlds
  • Windows and Linux x64
"What one world breaks stays in that world."

Lua Scripting

Scriptingpkg/script
  • A sandboxed Lua host with instruction and time budgets
  • A verb set per family: RF dungeons, Gate to Heavens NPC conversations
  • Content is .lua files in the server folder, changed without recompiling
"Write a script, not a patch."

Two-Layer Testing

Testingtest · soak
  • Rule tests, each on its own in-memory server
  • A live-world soak under a crowd of bots
  • Both must pass before any release
"Nothing ships that the bots could break."
Activity

What happened in the world

Releases, forum threads and bug reports in one channel, the way a game's chat window shows everything at once.

World chatFull history

[] [Thread] Ron replied: Quick RF progress update · RF Online

[] [Bug] DS-004 OSO AI moved it to Released: The server doesn’t clean up the tables when a character is deleted.

[] [Bug] DS-005 OSO AI moved it to Released: The Cash Shop doesn't see the Gold Coins in the DB, we can't buy items.

[] [Bug] DS-007 OSO AI moved it to Released: You can't send an item to another player by mail.

[] [Bug] DS-011 Orion13 reported it: When you accept the 'DinnerTime' quest, it is marked as 'Complete' (with version 0.1.1) without me having talked to the 3 NPCs

[] [Bug] RF455-107 BlaBlaName reported it: Ranged MAU Key Becomes Corrupted After Character Relogging

[] [Bug] RF455-108 BlaBlaName reported it: Incorrect Combination Result Display for Bellato Characters

[] [Bug] RF455-109 BlaBlaName reported it: Premium Items Are Not Consistently Removed on Logout or Reissued on Login

[] [Bug] RF455-110 BlaBlaName replied: Game Client Crashes When Exchanging Race Currency for Items Through NPCs

[] [Release] DragonSoul 0.1.3

[] [Bug] RF2232-490 OSO AI moved it to Released: Skills Bellato and Holy Forces

[] [Bug] RF2232-487 OSO AI moved it to Released: Set and jewelry items lack set bonuses.

[] [Idea] IDEA-7 Ron moved it to Planned: No client download option available.

[] [Bug] RF2232-491 OSO AI replied: Animus doesn't attack other players

[] [Bug] RF2232-488 OSO AI replied: Support officer buffs are not activating.

[] [Bug] DS-012 Orion13 reported it: Creating a Guild is impossible because of the Guild name.

[] [Bug] RF455-111 BlaBlaName reported it: Monsters Can Apply Debuffs and Remove Buffs on Players Inside MAUs

[] [Bug] STU-006 OSO AI replied: Some bugs Studio.

[] [Bug] STU-007 OSO AI replied: ItemLooting.dat -> m_itmLootCodeKey error

[] [Bug] DS-008 OSO AI replied: The NPC "God of Wealth" script is missing.

[] [Bug] DS-009 OSO AI moved it to Released: The Pet Strengthening system isn't working.

[] [Bug] DS-010 Orion13 replied: The NPC Feier gives the quest 'The Injured Cat' but you can't complete it.

[] [Idea] IDEA-9 RV suggested it: Language selector

[] [Bug] DS-013 Orion13 reported it: Skill Points disappear when you log out.

[] [Bug] DS-014 Orion13 reported it: I can't complete the 'Feed Your Pet' quest.

[] [Release] GoMMO Studio 1.3.0

[] [Bug] DS-015 Orion13 reported it: I can't complete the quest 'The Lost Bundle'.

Sign in to post on the forum and report bugs. Forum
Latest dropsChangelog
Game releaseTool releaseRelease candidate
Who is here
Members89
Active this week67
Posts513
Bug reports154
Tools

GoMMO Studio

Open a game client and edit its world. Maps, models, spells and textures for every game on the framework, in one window, with an Install step that writes the client and server files and keeps backups.

  • Map editor with walk grids, spawns, lighting and a problems list
  • Model viewer that dresses characters in real items and plays every animation
  • Texture recolour, packs, and screenshots or turntable GIFs at 1080p
  • Works on Gate to Heavens, RF Online and World of Kung Fu clients
Get GoMMO Studio
GoMMO Studio editing the Bellato map from RF Online: Golden Age
Self-host

Run your own world

A release bundle has the server, its data and a fresh database. Nothing else to install.

  1. Download a release

    Pick a game and a version from Downloads.

  2. Unzip it anywhere

    SQLite is the default, so the databases build themselves on first start. Switch to MySQL when you need it.

  3. Run the server

    One process serves every world for that game. Point the client at it and log in.

DownloadsInstalling guide
gameserver.exeexample start-up
> gameserver.exe
settings.cfg found in .\
database sqlite (default)
gommo_accounts provisioned
game database provisioned
game data loaded
listening on the game port
ready. waiting for players
Press start

One account. Run it, mod it, play it.

Your Old School Ops account covers everything here: the downloads, the docs, the forum and bug reports today, and logging in to our game servers once they are back up.

Operate

Download a server bundle for any game, read the setup docs, and report what breaks so the fix lands for everyone.

Mod

Edit maps, models, spawns and textures in GoMMO Studio, then install the changes into your own client and server.

Play

Log in to our public servers with the same account when they return, and follow every release on the forum until then.

Create an account Get a server bundle

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