OpenAL

Telegram Desktoptelegramdesktop/tdesktop

Official open-source desktop client for the Telegram messaging platform, built on the MTProto secure protocol.

LÖVElove2d/love

A free, open-source 2D game framework for creating cross-platform games with Lua.

Panda3Dpanda3d/panda3d

A powerful, mature open-source cross-platform game engine for Python and C++ programs, originally developed by Disney and CMU.

QtAvwang-bin/QtAV

A cross-platform multimedia playback library based on Qt and FFmpeg for building media players with hardware decoding and OpenGL support.

JMonkeyEnginejMonkeyEngine/jmonkeyengine

A 3-D game engine for adventurous Java developers, offering a complete open-source suite for cross-platform game development.

touchHLEtouchHLE/touchHLE

A high-level emulator written in Rust that runs early iPhone OS 2.x and 3.x games on modern desktops and Android.

G3Ng3n/engine

A cross-platform 3D game engine written in Go, featuring OpenGL rendering, an integrated GUI, and spatial audio.

ioquake3ioquake/ioq3

A community-maintained, open-source engine for Quake III Arena and Team Arena, providing modern enhancements and cross-platform support.

BlzhawkTASEmulators/BizHawk

A multi-system emulator with advanced recording, debugging, and tool-assisted speedrunning (TAS) features.

Pygletpyglet/pyglet

A cross-platform windowing and multimedia library for Python, designed for games and visually rich applications.

dhewm3dhewm/dhewm3

A modern, cross-platform source port of Doom 3 that fixes bugs and adds new features while preserving original gameplay.

Visual Doom AI Competitionmwydmuch/ViZDoom

A platform for developing AI bots that play Doom using visual information, designed for reinforcement learning research.

AcidEQMG/Acid

A high-speed, cross-platform game engine built with modern C++17 and Vulkan for graphics rendering.

AcidEquilibrium-Games/Acid

A high-speed, cross-platform game engine built with modern C++17 and Vulkan for graphics.

RBDOOM-3-BFGRobertBeckebans/RBDOOM-3-BFG

A Doom 3 BFG Edition source port with modern DX12/Vulkan renderer, PBR, global illumination, and enhanced modding support.

OpenLocoOpenLoco/OpenLoco

An open-source re-implementation of Chris Sawyer's Locomotion, a transport company simulation game.

Lumosjmorton06/Lumos

A cross-platform C++ game engine for 2D and 3D development with Vulkan rendering and Lua scripting.

Torque 2DTorqueGameEngines/Torque2D

A free, open-source, cross-platform 2D game engine built on proven Torque technology with editors and modular tools.