Context & Purpose Project Zomboid, a complex sandbox survival game, uses Java for core game logic, mod support, and networking. Delivering a consistent, performant runtime for varied player environments (single-player, dedicated servers, modded setups) is key. Zulu’s x64 architecture builds aim to provide a drop-in Java runtime optimized for these workloads across Windows, Linux, and macOS x64 systems, reducing runtime-induced variability and improving server and client stability.