Quake 2 Map Info is a command line utility that parses a Quake 2 map file and reports how many entities and textures are being used. It is useful for spotting extra items to improve gameplay balance and/or reducing extra textures to increase map speed. Most map editors do not provide a detailed breakdown of what is inside a map. It is compatible with any Quake 2 (ID Tech 2) game engine if the map file format has not be altered. If a game has a different map format, you can modify the source code to reflect the new format.
GLOBE_3D is a real-time 3D engine. It features unconditionally portable sources (one set of sources for all platforms), real-time rendering (fast with a 3D hardware-accelerated graphics card), full eye movements and rotations, display of combinations of colors, materials, and textures, transparency, multiple area rendering with the portal technique (e.g. for inner scenes), collision detection, binary space partition (BSP), input-output of 3D objects or groups of objects linked to each other by portals, easy management of resources like textures (.bmp and .tga), BSP trees, and objects stored in .zip files, screenshots (.bmp) and video captures (.avi), multi-view support, and vectorized geometry support.
Py-Lepton is a high-performance, pluggable particle engine and API for Python. The engine is designed to be very flexible and does not rely on any other libraries directly. You can use it either with OpenGL (via pyglet or PyOpenGL), or with pygame by selecting the appropriate renderer. Examples are provided using pyglet and pygame. Note that this is in an alpha state, so expect the API to change somewhat in future releases.
Q3utX Master Browser is an efficient Urban Terror game servers browser. It interrogates a "Master Browser" and retrieves all servers notified, then shows all info about game servers through an Ajax loader. It shows the server game name and type, IP address and port, server engine, current map name, number of users, and current players. It can filter based on game type.