Artemis-odb
A continuation of the popular Artemis ECS framework
...Artemis-odb is one of the fastest incarnations of Artemis! Don't take our word for it, check out and run the benchmarks yourself! Dozens of games with sources are available in the Game Gallery! Use it commercially! Expand your toolkit! Easy migration from Artemis clones. Optionally auto-pooled components and hotspot optimization via compile-time bytecode instrumentation. High performance, GC-friendly, less boilerplate! Automatic tracking, and maintenance of entity relationships.