CentrED# is a complete C# rewrite of the original CentrED map editor for Ultima Online, created by kaczy93. It is the recommended modern alternative to both CentrED and CentrED+.

Features

• Client/Server map editor (same architecture as original CentrED)
• Cross-platform: Windows, Linux, macOS (including Apple Silicon)
• Built on .NET — no legacy FreePascal/Lazarus dependencies
• Active development (722 commits, v0.6.11.30 as of February 2026)
• MIT license
• Acknowledges work from ServUO, ModernUO, ClassicUO, and UOFiddler

Downloads

Latest release: v0.6.11.30 (February 7, 2026)