RakNet is a a cross platform, open source, networking engine for game programmers. This is Indy license version of RakNet. A free Indy license allows you to use RakNet in a single downloadable application for the PC, Mac, iPhone, gPhone, or Linux

This a game engine of the game Penumbra. Penumbra is a first person horror adventure game for Windows, Mac OS X and Linux.-This is a game engine of the game Penumbra. Penumbra is a first person horror adventure game for Windows, Mac OS X and Linux.