This package provides the standard library for Inform 6.

Tiled is a general purpose tile map editor. It is meant to be used for editing maps of any tile-based game, be it an RPG, a platformer or a Breakout clone.

CSFML is the official C binding to the SFML libraries. SFML provides a simple interface to the various computer components, to ease the development of games and multimedia applications. It is composed of five modules: system, window, graphics, audio and network.

QQWing is a Sudoku puzzle generator and solver. It offers the following features:

1. Can solve 1000 puzzles in 1 second and generate 1000 puzzles in 25 seconds.

2. Uses logic. Uses as many solve techniques as possible when solving puzzles rather than guessing.

3. Rates puzzles. Most generators don't give an indication of the difficulty of a Sudoku puzzle. QQwing does.

4. Can print solve instructions for any puzzle.

5. Customizable output style, including a CSV style that is easy to import into a database.

LibreSprite is a tool for creating 2D pixel art for video games. In addition to basic pixel editing features, it can assist in the creation of animations, tiled graphics, texture atlases, and more. LibreSprite is a fork of the latest GPLv2 commit of Aseprite.

Godot is an advanced multi-platform game engine written in C++. If features design tools such as a visual editor, can import 3D models and provide high-quality 3D rendering, it contains an animation editor, and can be scripted in a Python-like language.

This package contains a collection of modules for the Bennu Game Development programming language, from CD handling through SDL to joystick support.

Rinutils is a set of C headers containing macros and static functions that have been extracted from Shlomi Fish's projects.

This package provides a collection of command line utilities used for building Quake maps as well as working with various Quake file formats. The utilities include qbsp for building the geometry, qvis for calculating visibility, qlight for lighting, bspinfo for getting information, and bsputil for basic editing of data in a map file.

Inform 6 is a programming language designed for interactive fiction. This version of the compiler has been modified slightly to work better when the Inform standard library is in a non-standard location.

catcodec encodes and decodes sounds for OpenTTD. These sounds are not much more than some metadata (description and filename) and raw PCM data.

ioquake3 is a free software first person shooter engine based on the Quake 3: Arena and Quake 3: Team Arena source code. Compared to the original, ioquake3 has been cleaned up, bugs have been fixed and features added. The permanent goal is to create a Quake 3 distribution upon which people base their games, ports to new platforms, and other projects.

Pygame is a set of Python modules designed for writing games. It adds functionality on top of the SDL library, allowing you to create games and multimedia programs in the Python language.

DeuTex is a wad composer for Doom, Heretic, Hexen and Strife. It can be used to extract the lumps of a wad and save them as individual files. Conversely, it can also build a wad from separate files. When extracting a lump to a file, it does not just copy the raw data, it converts it to an appropriate format (such as PPM for graphics, Sun audio for samples, etc.). Conversely, when it reads files for inclusion in pwads, it does the necessary conversions (for example, from PPM to Doom picture format). In addition, DeuTex has functions such as merging wads, etc.

This package contains the game engine of Tesseract, a first-person shooter focused on cooperative in-game map editing.

The engine is derived from Cube 2: Sauerbraten technology but with upgraded modern rendering techniques. The new rendering features include fully dynamic omnidirectional shadows, global illumination, HDR lighting, deferred shading, morphological / temporal / multisample anti-aliasing, and much more.

dhewm3 is a source port of the original Doom 3 engine (not Doom 3: BFG Edition), also known as id Tech 4. Compared to the original version of the Doom 3 engine, dhewm3 has many bugfixes, supports EAX-like sound effects on all operating systems and hardware (via OpenAL Softs EFX support), has much better support for widescreen resolutions and has 64bit support.

Python TMX reads and writes the Tiled TMX format in a simple way. This is useful for map editors or generic level editors, and it's also useful for using a map editor or generic level editor like Tiled to edit your game's levels.

Package sdl provides a Driver for making native graphical apps.

Eureka is a map editor for the classic DOOM games, and a few related games such as Heretic and Hexen. It comes with a 3d preview mode and a 2D editor view.

This package provides an Anvil file format parser.

TrenchBroom is a cross-platform level editor for Quake-engine based games. It supports Quake, Quake 2, Hexen 2, as well as other games. TrenchBroom provides many simple and advanced tools to create complex and interesting levels.

NewGRF Meta Language (NML) is a python-based compiler, capable of compiling NML files (along with their associated language, sound and graphic files) into .grf and/or .nfo files.

xSGE is a collection of modules that make doing certain tasks with the SGE Game Engine easier. In addition to SGE's conveniences, the user has access to a GUI toolkit, lighting and physics frameworks and Tiled TMX format support.

OpenMW is a game engine which reimplements and extends the one that runs the 2002 open-world RPG Morrowind. The engine comes with its own editor, called OpenMW-CS which allows the user to edit or create their own original games.