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Simple DirectMedia Layer

Simple DirectMedia Layer (SDL) is a cross-platform software development library designed to provide a hardware abstraction layer for computer multimedia hardware components. Software developers can use it to write high-performance computer games and other multimedia applications that can run on many operating systems such as Android, iOS, Linux, macOS, and Windows. SDL manages video, audio, input devices, CD-ROM, threads, shared object loading, networking and timers. For 3D graphics, it can handle an OpenGL, Vulkan, Metal, or Direct3D context. The library is internally written in C, and provides the application programming interface in C, with bindings to other languages available. SDL is extensively used in the industry in both large and small projects. Over 700 games, 180 applications, and 120 demos have been posted on the library website.
Display and control your Android device
An open source re-implementation of RollerCoaster Tycoon 2 🎢
GameStream client for PCs (Windows, Mac, Linux, and Steam Link)
🐍🎮 pygame (the library) is a Free and Open Source python programming language library for making multimedia applications like games built on top of the excellent SDL library. C, Python, Native, OpenGL.
A lightweight text editor written in Lua
Open-source engine for Heroes of Might and Magic III
Cross-platform Audio Visualizer
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)
SuperTux source code
A retro multiplayer shooter
👾🐍 A opensource game inspired by Snake, written in pure C with SDL
Chocolate Doom is a Doom source port that is minimalist and historically accurate.
A comprehensive guide to 50 years of evolution of strict C programming, a tribute to Dennis Ritchie's language
MLT Multimedia Framework
An open source re-implementation of Chris Sawyer's Locomotion
A high performance X11 animated wallpaper setter
OpenSoldat is a unique 2D (side-view) multiplayer action game