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Highly Performant & Scalable Ultima Online Server Emulator https://www.modernuo.com
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Kamron Batman 158e7f2e5f
feat(throwing): add Ter Mur reptiles (Raptor + slith family) and their SA claws (#2515) 
Follow-up to the gargoyle Throwing work (#2510/#2512/#2514). Ports two Stygian Abyss creatures from ServUO so two of the throwing artifacts finally have a real OSI drop source instead of being `[add`-only.

## Changes
- **`Raptor`** and **`StoneSlith`** — ported stat-for-stat from ServUO. They **spawn automatically**: `Distribution/Data/Spawns/post-uoml/termur/TerMur.json` already contained Raptor/StoneSlith spawner entries referencing these class names, so no spawn-file edits were needed.
- **`RaptorClaw`** (Boomerang-based) and **`StoneSlithClaw`** (Cyclone-based) artifacts, dropped from each creature's `OnDeath` at ServUO's 0.5% rate (uncontrolled only).
- StoneSlith retains its `GraspingClaw` monster ability; both use `BleedAttack`.

## ModernUO idioms
Default range perception (16) / fight range, derived `GetSpeeds` (no `SetSpeed`), `[SerializationGenerator(0)]` codegen, collection-expression arrays.

## Documented omissions vs ServUO
Flagged as TODO in-code — all are content missing from ModernUO, not silent drops: Raptor's friend-spawn timer + its 25% `AncientPotteryFragments` drop; StoneSlith's `TailSwipe`, `DragonBlood`, and `SlithEye`/`TatteredAncientScroll`/`AncientPotteryFragments` drops; plus `HideType.Horned/Spined` and `PackInstinct.Ostard` (no ModernUO equivalents yet).

## Not included
The other three throwing artifacts (Storm Caller, Banshee's Call, Wind of Corruption) drop from renowned/boss creatures via a `BaseRenowned` artifact-list system that doesn't exist in ModernUO yet — a separate, larger effort. AbyssReaver stays with the (deferred) Into-the-Void quest.

Verified: server builds clean; throwing suite 14/14.
2026-07-02 23:58:29 -07:00
.config feat: Adds Build Tool for Publishing/Setup (#2392) 2026-03-28 21:21:50 -07:00
.github fix(ci): run test projects on CI; remove brittle OPL attribute tests (#2513) 2026-07-02 22:35:37 -07:00
branding feat(build-tool): add application icon and refresh MUO.ico (#2487) 2026-06-14 11:59:54 -07:00
dev-docs feat(opl): OplTextBlock multi-line tooltip builder + AddChunked (#2507) 2026-07-02 19:41:36 -07:00
Distribution/Data fix(throwing): grant Str/Dex stat gains for the Throwing skill (#2514) 2026-07-02 23:07:36 -07:00
Projects feat(throwing): add Ter Mur reptiles (Raptor + slith family) and their SA claws (#2515) 2026-07-02 23:58:29 -07:00
.cursorrules chore: Adds AI instructions and SKILLs for ModernUO codebase (#2347) 2026-03-01 11:42:19 -08:00
.editorconfig chore(docs): Adds UnmanagedDataReader & BinaryFileReader documentation (#1968) 2024-10-01 17:07:51 -07:00
.gitattributes fix: Adds migration checks to CICD, updates dependencies, adds Fedora 37, alpine 3.17 support (#1309) 2022-12-22 12:12:47 -08:00
.gitignore feat: Adds Build Tool for Publishing/Setup (#2392) 2026-03-28 21:21:50 -07:00
AGENTS.md chore: Adds AI instructions and SKILLs for ModernUO codebase (#2347) 2026-03-01 11:42:19 -08:00
azure-pipelines.yml chore: Cleans workflows for NodeJS 24 (#2394) 2026-03-28 21:55:29 -07:00
CLAUDE.md feat(pathfinding): first-boot prompt to pre-bake the .swb map cache (#2475) 2026-06-07 16:30:33 -07:00
CODE_OF_CONDUCT.md Create CODE_OF_CONDUCT.md 2020-05-05 08:51:39 -07:00
CONTRIBUTING.md chore(license): Removes CLA requirement. All contributors moving forward will retain copyright. (#2038) 2024-12-31 02:52:58 -08:00
Directory.Build.props fix: Bumps dependencies. Adds Server 2012/2016 support. (#2509) 2026-07-02 19:29:34 -07:00
FAQ.md docs: Updates FAQ for time zone issues. (#1368) 2023-03-10 00:18:36 -08:00
GEMINI.md chore: Adds AI instructions and SKILLs for ModernUO codebase (#2347) 2026-03-01 11:42:19 -08:00
global.json feat: Adds Build Tool for Publishing/Setup (#2392) 2026-03-28 21:21:50 -07:00
LICENSE Fixes more line ending issues (#267) 2020-09-27 13:54:56 -07:00
ModernUO.slnx feat: Adds Build Tool for Publishing/Setup (#2392) 2026-03-28 21:21:50 -07:00
publish.cmd feat: Adds Build Tool for Publishing/Setup (#2392) 2026-03-28 21:21:50 -07:00
publish.ps1 fix: Adds stamp check for build tool versioning (#2400) 2026-04-06 16:18:02 -06:00
publish.sh fix: Adds stamp check for build tool versioning (#2400) 2026-04-06 16:18:02 -06:00
README.md chore: Update README with Code Signing Policy (#2467) 2026-06-06 15:32:01 -07:00
rider-settings.zip Cleanup/Housekeeping (#242) 2020-09-12 15:31:21 -07:00
Rules.ruleset chore(docs): Adds UnmanagedDataReader & BinaryFileReader documentation (#1968) 2024-10-01 17:07:51 -07:00
SPONSORS.md chore: Updates readme files (#2247) 2025-07-27 11:04:32 -07:00
stylecop.json Updates formatting rules (#199) 2020-08-25 18:00:51 -07:00
THIRD-PARTY-NOTICES docs: Adds RunUO-Encryption notice attribution to DarkStorm (#2369) 2026-03-12 23:35:47 -07:00
version.json feat: Adds Build Tool for Publishing/Setup (#2392) 2026-03-28 21:21:50 -07:00

README.md

ModernUO - Ultima Online Server Emulator for the modern era!

ModernUO Discord Subreddit subscribers Twitter Follow

Ultima Online Server Emulator for the modern era!

GitHub license GitHub stars GitHub issues
GitHub build Azure Pipelines build

Requirements

Supported Operating Systems

Windows 10/11/2012/2016/2019/2022/2025 MacOS 14+ Debian 12+ Ubuntu 22+ LTS
Alpine 3.22+ Fedora 42+ RedHat 9+ CentOS Stream 9+ openSUSE 15.6+ SUSE Enterprise 15 SP6 Linux Mint 21+ Arch

Required Frameworks

All Operating Systems

.NET

Windows

VC++ Redistributable v14

Development

git .NET

Supported IDEs

Jetbrains Rider 2025.3+ space VSCode space Visual Studio 2026

Getting Started

  • Install prerequisite requirements
  • Clone this repository (or download the latest):
    • git clone https://github.com/modernuo/ModernUO.git
  • Open ModernUO.sln to start developing

Building/Publishing

Interactive Mode (Recommended for new users)

Run ./publish.cmd (Windows) or ./publish.sh (Linux/macOS) with no arguments to launch the guided build tool. It will:

  • Check prerequisites (.NET SDK, native libraries)
  • Walk you through configuration and platform selection
  • Build and publish the server to the Distribution directory
  • Show deployment instructions for cross-compiled builds

Command Line

./publish.cmd [release|debug] [os] [arch]

Linux Prerequisites

Fedora, CentOS, RHEL, etc

dnf upgrade --refresh -y
# CentOS does not come with EPEL enabled
dnf install -y epel-release epel-next-release
dnf install -y findutils libicu libdeflate-devel zstd libargon2-devel liburing-devel

Ubuntu, Debian, etc

apt-get update -y
apt-get install -y libicu-dev libdeflate-dev zstd libargon2-dev liburing-dev

OSX Requirements

brew install icu4c libdeflate zstd argon2

Running the Server

  • Follow the publish instructions
  • The Distribution directory is portable — copy it to your production server for deployment
  • Run ModernUO.exe or dotnet ModernUO.dll from the Distribution directory
  • On first run, the server will prompt you to configure game data file locations

Troubleshooting / FAQ

Want to sponsor?

Thank you for supporting us! You can find out how by visiting the sponsors page.

Collaborators

Kamron Batman Mark1145

Thanks

  • RunUO Team & Community
  • Voxpire, the ServUO Team & Community
  • Karasho, Jaedan and the ClassicUO Community



Development Tools & Plugins provided with ♥ by

JetBrains
Material Theme

Code Signing Policy

Free code signing provided by SignPath.io, certificate by SignPath Foundation.

This program will not transfer any information to other networked systems unless specifically requested by the user or the person installing or operating it

Teams & Roles

Approvers & Committers: Development Team