엔진 아키텍쳐(언리얼 엔진)
https://github.com/EpicGames/UnrealEngine
모델 데이터 임포팅(OpenFBX)
https://github.com/nem0/OpenFBX
해쉬맵 제작(city hash)
https://github.com/google/cityhash
데이터 직렬화(cap'n proto)
https://github.com/capnproto/capnproto