Phoronix: XreaL Is Still Around, But Without Any Release
XreaL, the heavily modified Quake 3 game engine that its developer says is the most advanced open-source game engine, is still in-development even without an official release for this project that's been around for years...
This project needs artists and especially texture artists to develop.
We can't release a full game without replacing the proprietary assets.
If you think you're up for the task, join #xreal on freenode, and show us your work.
Sigh. XReaL is NOT an "advanced game engine." Having pretty graphics does not a game engine make. Graphics engines and game engines are very, very different things. The id/Quake/ET engines are not advanced game engines. They're very special-purposed FPS engines which require massive amounts of code revamping and rearchitecting to build something other than the specific game they were made for.
An advanced game engine is something like Unity3D, which can easily be used to build almost any kind of game you can imagine. As a _game engine_ rather than a _graphics engine_, its developers focused on building the tools and internal architecture necessary for building a diverse set of games.
XReaL is a mediocre FPS engine with particularly great graphics. It's not an advanced game engine by any stretch of the imagination.