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.

LÖVE is a Lua framework for making 2D games. Nuklear is a minimal state immediate mode graphical user interface toolkit. This package is the Nuklear bindings for LÖVE created by Kevin Harrison.

TIC-80 is a fantasy computer for making, playing and sharing tiny games. There are built-in tools for development: code, sprites, maps, sound editors and the command line, which is enough to create a mini retro game.

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.

LÖVE is a framework for making 2D games in the Lua programming language.

This package provides the standard library for Inform 6.

Pygame_SDL2 reimplements the Pygame API using SDL2, staying close to the original, but also adding some SDL2-specific features. While it aims to be used as a drop-in replacement, it appears to be developed mainly for Ren'py.

pytmx is a map loader for python/pygame designed for games. It provides smart tile loading with a fast and efficient storage base.

ODE is a high performance library for simulating rigid body dynamics. It is fully featured, stable, mature and platform independent with an easy to use C/C++ API. It has advanced joint types and integrated collision detection with friction. ODE is useful for simulating vehicles, objects in virtual reality environments and virtual creatures. It is currently used in many computer games, 3D authoring tools and simulation tools.

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

Pybox2d is a 2D physics library for your games and simple simulations. It's based on the Box2D library, written in C++. It supports several shape types (circle, polygon, thin line segments), and quite a few joint types (revolute, prismatic, wheel, etc.).

go-sdl2 is SDL2 wrapped for Go users. It enables interoperability between Go and the SDL2 library which is written in C. That means the original SDL2 installation is required for this to work.

Chipmunk is a simple, lightweight, fast and portable 2D rigid body physics library written in C.

SLADE3 is a modern editor for Doom-engine based games and source ports. It has the ability to view, modify, and write many different game- specific formats, and even convert between some of them, or from/to other generic formats such as PNG.

Box2D is a 2D rigid body simulation library for games. Programmers can use it in their games to make objects move in realistic ways and make the game world more interactive. From the game engine's point of view, a physics engine is just a system for procedural animation.

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.

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.

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.

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.

The STEAD (Simple TExt ADventures) interpreter provides functionality to play games that mix elements of visual novels, interactive fiction and classic point-and-click adventures.

The SGE Game Engine ("SGE", pronounced like "Sage") is a general-purpose 2D game engine. It takes care of several details for you so you can focus on the game itself. This makes more rapid game development possible, and it also makes the SGE easy to learn.

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.

pyscroll is a simple and fast module for animated scrolling maps for your new or existing game.

OpenVR is an API and runtime that allows access to VR hardware from multiple vendors without requiring that applications have specific knowledge of the hardware they are targeting.