| 1 |  OpenTTDOpenTTD is a transport simulation game based upon the popular game Transport Tycoon Deluxe, written by Chris Sawyer.
It attempts to mimic the original game as closely as possible while extending it with new features. | 15.3 | Open source | April 5, 2026 | — | 31.6K ↓ |
| 2 |  RetroArchRetroArch is a frontend for emulators, game engines and media players. | 1.22.2 | Open source | December 3, 2025 | 209.0 MB | 76.1K ↓ |
| 3 |  SteamSteam is the ultimate destination for playing, discussing, and creating games. | 2.10.91.91 | Proprietary | March 30, 2021 | 2.4 MB | 766.7K ↓ |
| 4 |  CelestiaReal-time 3D visualization of space. The free space simulation that lets you explore our universe in three dimensions. | 1.6.4 | Open source | November 10, 2023 | — | 13.6K ↓ |
| 5 |  PPSSPPPPSSPP can run your PSP games on your PC in full HD resolution; it can even upscale textures that would otherwise be too blurry as they were made for the small screen of the original PSP. | 1.20.4 | Open source | July 12, 2026 | 27.7 MB | 14.6K ↓ |
| 6 |  ScummVMScummVM is a program which allows you to run certain classic graphical adventure and role-playing games, provided you already have their data files. | 2026.4.0 | Open source | October 11, 2026 | 140.0 MB | 9K ↓ |
| 7 |  MAMEA multi-purpose emulation framework. Its purpose is to preserve decades of software history. As electronic technology continues to rush forward, MAME prevents this important «vintage» software from being lost and forgotten. | 0.289 | Open source | July 31, 2026 | — | 10.9K ↓ |
| 8 |  PlaynitePlaynite is an open source video game library manager with one simple goal: To provide a unified interface for all of your games. | 10.58 | Open source | September 11, 2026 | — | 89.3K ↓ |
| 9 |  StockfishA free and strong UCI chess engine. | 19.0 | Open source | September 6, 2026 | — | 608 ↓ |
| 10 |  SuperTuxKartArcade 3D racer with a variety of characters, tracks and modes | 1.5 | Open source | November 6, 2025 | — | 7.8K ↓ |
| 11 |  DolphinDolphin emulates the Nintendo GameCube and Nintendo Wii on your PC. | 5.0 | Open source | August 3, 2021 | 2 KB | 397.9K ↓ |
| 12 |  Warzone 2100Warzone 2100, released in 1999 and developed by Pumpkin Studios, was a ground-breaking and innovative 3D real-time
strategy game. | 4.7.0 | Open source | May 15, 2026 | — | 2.9K ↓ |
| 13 |  OpenRCT2Open source re-implementation of RollerCoaster Tycoon 2 | 0.5.6 | Open source | October 10, 2026 | — | 6.8K ↓ |
| 14 |  Moonlight Game Streaming ClientPlay games remotely from your NVIDIA GameStream-enabled PC | 6.2.0.0 | Open source | October 6, 2026 | — | 25.4K ↓ |
| 15 |  TeeworldsA free online multiplayer game. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps. | 0.7.5 | Open source | May 27, 2026 | — | 5.5K ↓ |
| 16 |  Prism LauncherA custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once | 11.1.1 | Open source | September 29, 2026 | — | 24.6K ↓ |
| 17 |  AssaultCubeSemi-realistic first-person shooter based on the Cube engine | 1.3.0.2 | Free | April 3, 2022 | — | 5.6K ↓ |
| 18 |  osu!(lazer)rhythm is just a *click* away! | 2026.1005.0-lazer | Open source | October 5, 2026 | — | 5.4K ↓ |
| 19 |  Dungeon Crawl Stone SoupDungeon Crawl Stone Soup is a free and open source roguelike computer game, which is the actively community-developed successor of the 1997 roguelike game Linley's Dungeon Crawl, originally programmed by Linley Henzell. | 0.34.1 | Open source | March 19, 2026 | — | 2.1K ↓ |
| 20 |  HeroicHeroic is an Open Source Game Launcher for Linux, Windows and MacOS. | 2.22.4 | Open source | October 15, 2026 | — | 5.5K ↓ |
| 21 |  CompactGUITransparently compress active games and programs using Windows 10/11 APIs. | v4.0.0-beta.12 | Open source | September 21, 2026 | — | 13K ↓ |
| 22 |  WidelandsA free and open-source, slow-paced real-time strategy video game under the GNU General Public License. | 1.3.1 | Open source | February 22, 2026 | — | 1.4K ↓ |
| 23 |  Battle for WesnothThe Battle for Wesnoth is an open source, turn-based strategy game with a high fantasy theme.
It features both singleplayer and online/hotseat multiplayer combat. | 1.18.4 | Open source | May 20, 2025 | 434.6 MB | 35.3K ↓ |
| 24 |  Ubisoft ConnectThe ecosystem of players services for Ubisoft games across all platforms. It aims at giving the best environment for all players to enjoy their games and connect with each other whatever the device. | 174.2.0.13389 | Proprietary | October 13, 2026 | 264.2 MB | 236.8K ↓ |
| 25 |  DOSBox-XDOSBox-X is an open-source DOS emulator for running DOS games and applications. | 2026.10.01 | Open source | October 2, 2026 | — | 10K ↓ |
| 26 |  ludusaviBackup tool for PC game saves | 0.31.0 | Open source | April 4, 2026 | — | 7.4K ↓ |
| 27 |  Modrinth AppThe Modrinth App is a unique, open source Minecraft launcher that allows you to play your favorite mods, and keep them up to date, all in one neat little package. | 0.22.0 | Open source | October 21, 2026 | — | 6.4K ↓ |
| 28 |  legendaryan open-source game launcher that can download and install games from the Epic Games platform. | 0.21.1 | Open source | September 10, 2026 | — | 14.9K ↓ |
| 29 |  xmotoA challenging 2D motocross platform game, where physics play an important role. | 0.6.3 | Open source | March 31, 2025 | — | 3.6K ↓ |
| 30 |  mGBAAn open-source Game Boy Advance emulator. | 0.10.5 | Open source | March 9, 2025 | — | 5.6K ↓ |
| 31 |  itchInstall, update and play indie games | 26.22.0 | Open source | October 7, 2026 | — | 22K ↓ |
| 32 |  Steam ROM ManagerSteam ROM Manager is a super flexible tool for adding non-Steam games to steam in bulk and managing their artwork assets | 2.5.29 | Open source | January 29, 2025 | — | 12.1K ↓ |
| 33 |  Endless SkyA sandbox-style space exploration game. | 0.11.2 | Open source | September 10, 2026 | — | 1.3K ↓ |
| 34 |  MonoGame SDKOne framework for creating powerful cross-platform games. | 3.7.1.189 | Open source | June 11, 2021 | — | 5.5K ↓ |
| 35 |  DLSS UpdaterA tool to update DLSS, XeSS, and DirectStorage DLLs for various games | 5.1.2 | Open source | October 21, 2026 | — | 6.7K ↓ |
| 36 |  DLSS SwapperDLSS Swapper swap DLSS dlls in games. | 1.2.6.1 | Open source | October 7, 2026 | — | 2.5K ↓ |
| 37 |  RareGUI for legendary. An Epic Games Launcher open source alternative | 1.12.0 | Open source | January 24, 2026 | — | 10.1K ↓ |
| 38 |  NyrnaSuspend games and applications | 2.27.2 | Open source | May 27, 2026 | — | 8.7K ↓ |
| 39 |  EmulationstationFrontend for emulators | 2.0.1 | Open source | June 13, 2021 | — | 14.4K ↓ |
| 40 |  hakchi2hakchi2 Setup | 2.32 | Open source | June 1, 2021 | — | 13.2K ↓ |
| 41 |  DOSBoxDOSBox is an emulator program which emulates an IBM PC compatible computer running a DOS operating system. | 0.74-3 | Open source | March 30, 2021 | 1.5 MB | 23.4K ↓ |
| 42 |  GB StudioA quick and easy to use drag and drop retro game creator for your favourite handheld video game system | 4.2.2 | Open source | March 25, 2026 | — | 2.5K ↓ |
| 43 |  SideQuestSideQuest is a place to get more apps for your Oculus Quest, it is a completely safe way to enjoy some cutting edge content in VR and expand the capability of your standalone VR headset. | 0.10.42 | Open source | June 21, 2024 | — | 17.7K ↓ |
| 44 |  CorsixTHA reimplementation of the 1997 Bullfrog business sim Theme Hospital. | 0.70.1 | Open source | September 11, 2026 | — | 2.8K ↓ |
| 45 |  FreecivFreeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization. | 3.1.4 | Open source | February 20, 2025 | 68.0 MB | 20.2K ↓ |
| 46 |  MapToolVirtual Tabletop for playing roleplaying games with remote players or face to face. | 1.18.7 | Open source | October 9, 2026 | — | 4.8K ↓ |
| 47 |  TripleATripleA is a turn based strategy game and board game engine. | 2.5.22294 | Open source | May 18, 2023 | — | 820 ↓ |
| 48 |  LiveSplitA sleek, highly customizable timer for speedrunners. | 1.8.37 | Open source | July 11, 2026 | — | 7.5K ↓ |
| 49 |  FlightGearFlightGear is an open-source flight simulator. | 2024.1.4 | Open source | February 3, 2026 | 82.9 MB | 9.5K ↓ |
| 50 |  Better-CrewLinkFree, open, Among Us proximity voice chat | 3.2.2 | Open source | September 9, 2026 | — | 4K ↓ |