game-engine

An open-source GoldSrc engine clone (Clean authentic reimplementation without using reverse-engineered code)

World of Warcraft 3.3.5a server emulator based on AzerothCore commit 2eb07056 (2020-02-28)

Further adventures of OGS Engine in Modernland (Alternative way of GoldSrc engine evolution)

Gamebryo engine (Bethesda's branch) reimplementation https://www.moddb.com/engines/sugarbombengine

Quake (id Tech 2) engine with forged internals

Quake 3 (id Tech 3) engine with forged internals

A game engine for isometric games