Free & Open Source Games Made with SDL2
394 free, open-source games made with SDL2 — real clones and remakes you can download, inspect the source of, and modify.
Active
Original game image
Original game imageClone of Street Fighter III: 3rd Strike
3SX is a native PC/Mac/Linux port of Street Fighter III: 3rd Strike with rollback netcode, continuing the 3s-decomp decompilation project.
Platforms:WindowsLinuxOSX
Stars340
Updated1 month ago
LicenseAGPL-3.0
Release2025
Genre: Fighting
Theme: —
Active
Original game image
Original game imageClone of Master of Orion
A reconstruction of the original 1993 DOS Master of Orion for modern systems, though this fork is no longer actively developed.
Platforms:WindowsLinuxDOS
Stars110
Updated2 months ago
LicenseGPL-2.0
Release2022
Genre: Turn-Based Strategy
Theme: Sci-Fi
Active
Clone of RollerCoaster Tycoon
An open-source re-implementation of RollerCoaster Tycoon 2 with modern platform support, higher limits and co-op multiplayer.
Platforms:WindowsLinuxOSX
Stars16,227
Updated1 month ago
LicenseGPL-3.0
Release2014
Genre: Simulation
Theme: Management
Active
Clone of Cataclysm
A turn-based survival game in a procedurally generated post-apocalyptic world, actively developed by over 1,000 volunteer contributors.
Active
Clone of Transport Tycoon
A free, actively developed remake and expansion of Transport Tycoon Deluxe with multiplayer and in-game mod downloads.
Platforms:WindowsLinuxOSX
Stars8,264
Updated1 month ago
LicenseUnknown
Release2018
Genre: Strategy
Theme: Management
Active
Active
Clone of Heroes of Might and Magic III
An open-source recreation of the Heroes of Might and Magic III engine with new features, full mod support, and mobile ports.
Platforms:WindowsLinuxOSX
Stars5,863
Updated1 month ago
LicenseGPL-2.0
Release2014
Genre: Turn-Based Strategy
Theme: —
Active
Clone of The Legend of Zelda: Ocarina of Time
A PC/console port of Ocarina of Time built on the OOT decompilation project, adding save states and custom assets.
Platforms:WindowsLinuxOSX
Stars5,396
Updated1 month ago
LicenseUnknown
Release2022
Genre: Action
Theme: Fantasy
Active
Clone of Powder Game
A free, open-source 2D physics sandbox simulating pressure, heat, gravity, and countless material interactions.
Platforms:WindowsLinuxOSX
Stars5,314
Updated2 months ago
LicenseGPL-3.0
Release2010
Genre: Simulation
Theme: —
Active
Original game image
Original game imageClone of Sonic Unleashed
An unofficial static-recompilation PC port of Xbox 360's Sonic Unleashed, requiring your own legally owned copy of the game.
Halted
Original game image
Original game imageClone of Legend of Zelda - A Link to the Past
A from-scratch C reimplementation of A Link to the Past, playable start to finish with added widescreen support.
Platforms:WindowsLinuxOSX
Stars4,768
Updated2 years ago
LicenseUnknown
Release2022
Genre: Action
Theme: —
Halted
Original game image
Original game imageClone of Full Tilt! Pinball
A reverse-engineered, decompiled rebuild of Windows' 3D Pinball: Space Cadet, running on Windows, Linux, and macOS.
Active
Original game image
Original game imageClone of Warzone 2100
Warzone 2100, GPL-licensed since 2004, is a free open-source 3D RTS with campaign, online multiplayer, and JavaScript modding.
Platforms:WindowsLinuxOSX
Stars3,954
Updated1 month ago
LicenseGPL-2.0
Release2010
Genre: Real-Time Strategy
Theme: Sci-Fi
Active
Clone of S.T.A.L.K.E.R.
A community-improved X-Ray Engine for S.T.A.L.K.E.R. with 64-bit support, bug fixes and Linux/macOS ports.
Platforms:Windows
Stars3,559
Updated1 month ago
LicenseUnknown
Release2014
Genre: FPS
Theme: Alternate Historical
Active
Active
Clone of Wipeout
A work-in-progress, asset-free re-implementation of the 1995 PSX racer Wipeout for SDL2, Sokol, and web.
Active
Clone of Heroes of Jin Yong
kys-cpp is a C++ remake of the 1996 wuxia RPG Heroes of Jin Yong, adding real-time combat modes inspired by Hades and Sekiro.
Halted
Original game image
Original game imageClone of Fallout
Fallout Community Edition reimplements the original Fallout's engine with bugfixes and QoL improvements, as a drop-in Windows replacement.
Platforms:WindowsLinuxOSX
Stars2,915
Updated1 year ago
LicenseUnknown
Release2023
Genre: RPG
Theme: Post-Apocalyptic
Active
Halted
Original game image
Original game imageClone of Fallout 2
A from-scratch reimplementation of Fallout 2's engine with bugfixes and quality-of-life improvements, requiring the original game data.
Active
Clone of Doom
A source port that reproduces the original DOS Doom, Heretic, Hexen, and Strife with their original bugs intact on modern systems.
Active
Original game image
Original game imageClone of Mario Kart 64
A no-assets-included PC/Switch port of Mario Kart 64, built on the libultraship framework with mod support.
Platforms:WindowsLinuxOSX
Stars2,348
Updated2 months ago
LicenseUnknown
Release2024
Genre: Racing
Theme: —
Active
Halted
Clone of Grand Theft Auto III
A partial open-source re-implementation of Grand Theft Auto III for Linux, macOS, Windows and BSD; needs the original PC game.
Platforms:WindowsLinuxOSX
Stars2,222
Updated1 year ago
LicenseGPL-3.0
Release2015
Genre: Action
Theme: Crime
Sporadic
Clone of X-COM: Terror from the Deep
A playable open-source clone of UFO: Enemy Unknown and Terror from the Deep with extensive mod support.
Sporadic
Active
Original game image
Original game imageClone of SimCity
A free, open-source retro pixel-art city-builder with a custom SDL2 isometric engine in C++; core building mechanics are still planned.
Platforms:WindowsLinuxOSX
Stars2,160
Updated2 months ago
LicenseGPL-3.0
Release2018
Genre: Simulation
Theme: Management
Active
Active
Clone of The Legend of Sword and Fairy
A cross-platform SDL reimplementation of the engine behind the 1995 Chinese RPG Legend of Sword and Fairy.
Active
Clone of Chris Sawyer's Locomotion
A complete C++ re-implementation of Chris Sawyer's Locomotion, aiming to improve it the way OpenTTD improved Transport Tycoon.
Platforms:WindowsLinuxOSX
Stars1,904
Updated1 month ago
LicenseMIT
Release2018
Genre: Strategy
Theme: Management
Active
Original game image
Original game imageClone of Dune 2
A playable open-source re-creation of Westwood's Dune II that runs natively on many systems using the original data files.
Platforms:WindowsLinuxOSX
Stars1,688
Updated2 months ago
LicenseGPL-2.0
Release2012
Genre: Real-Time Strategy
Theme: Sci-Fi
Active
Active
Sporadic
Original game image
Original game imageClone of Soldat
The open-sourced 1.8 codebase of Soldat, the fast-paced 2D side-view multiplayer shooter, buildable on Windows, Linux and macOS.
Platforms:WindowsLinuxOSX
Stars1,465
Updated10 months ago
LicenseMIT
Release2018
Genre: Platform
Theme: Modern Military
Archived
Clone of Tomb Raider
An inactive from-scratch Tomb Raider 1–5 engine remake with Lua scripting and support for custom TRLE levels.
Active
Clone of The Elder Scrolls: Arena
A clean-room open-source engine for The Elder Scrolls: Arena, still missing quests, spells and saves.
Sporadic
Clone of Prince of Persia
An open-source, feature-expanded port of DOS Prince of Persia, built from a full disassembly of the original executable.
Platforms:WindowsLinuxOSX
Stars1,283
Updated10 months ago
LicenseGPL-3.0
Release2015
Genre: Platform
Theme: —
Halted
Clone of Ace of Spades
An open-source, cross-platform client for Ace of Spades 0.75 that connects to vanilla, pyspades and pysnip servers.
Platforms:WindowsOSX
Stars1,245
Updated2 years ago
LicenseGPL-3.0
Release2013
Genre: FPS
Theme: World War II
Active
Clone of RPG Maker
EasyRPG Player is an open-source interpreter that plays RPG Maker 2000/2003 games, running on Windows, macOS, Linux, and Android.