Here is a non exhaustive list of the tools used to build Olympe Engine
Visual C++ Express Edition
Olympe Engine is a free and non-commercial software
BASS Audio Library
Olympe Engine is intended to be cross platform software
Microsoft Windows / Win32
Relish Games HGE
OpenGL [WIP]
Unix/Linux [WIP]
TinyXML
wxWidget [WIP]
LUA [WIP]
BOX 2D [WIP]