A version of Wine made by a company called TransGaming designed to allow you to play Windows games using Linux. It uses a mapping of DirectX calls to native OpenGL ones to provide a fast rendering environment. There are a few games that do work correctly, but a larger number which do not. The upcoming version of WineX, version 3.0 should allow more recent games like BattleField1942 to run.
No other page links to WineX yet.