Reverse-engineering the 1998 Ultima Online demo server
Summary
A 10-year reverse-engineering project releases a near-complete recreation of the 1998 Ultima Online demo server, disassembling ~5,000 MSVC x86 functions and porting them to portable C99 with instruction-level verification. The work uses radare2, deduces symbols from a Linux port, preserves binary structure, and adds new features and cross-version client support. It includes tooling, data, a test center, and an invitation for community contributions.