Open Source Multiplayer Games
Sort By:
Multiplayer Games
View related business solutionsBrowse free open source Multiplayer games and projects below. Use the toggles on the left to filter open source Multiplayer games by OS, license, language, programming language, and project status.
-
Go from Code to Production URL in SecondsSkip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
-
Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
-
1
OpenSource OpenGL Multiplayer Multiplatform Battle Zone capture the Flag. 3D first person tank game. Download the latest version at https://www.bzflag.org/downloads/ Development has moved to Github: https://github.com/BZFlag-Dev/bzflag (The SourceForge binary releases for Windows and macOS are very outdated. Please download the latest version from our website.)
-
2
0 A.D.
0 A.D. is a free, open-source, cross-platform real-time strategy game.
0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess. -
3
TripleA Maps
A collection of all maps and games made for the TripleA game engine
http://www.triplea-game.org/ -
4
Opticraft is a custom server for Classic Minecraft multiplayer developed in python. It makes use of no extra dependencies, it is not based off Myne, and requires python 2.6. It aims to be light weight as well as easy to setup and use.
-
$300 in Free Credit Towards Top Cloud ServicesStart your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
-
5
<b>The project is continued at https://github.com/Scrabble3D. Find the latest program version under Binaries.</b> Scrabble3D is a highly customizable Scrabble game that not only supports Classic Scrabble and Superscrabble but also 3D games and own boards. You can play local against the computer or connect to a game server to find other players.
-
6
Nexuiz is a multiplayer first-person shooter. It is distributed under the GNU General Public License (GPLv2). Version 1.0 was released on May 31, 2005. The current version is, 2.5.2.
-
7
Zod Engine is a remake of the 1996 classic game by Bitmap Brothers called Z. Z is a capture the flag style RTS. In this game you command robots and vehicles with the purpose of destroying the enemy's fort. Please visit http://zzone.lewe.com/ for more
-
8
ATC-pie
Air traffic control tower and radar simulator (solo + multi-player)
ATC-pie is an air traffic control simulation program. It features solo, multi-player and teacher-student sessions, rendering 3D views of airports through FlightGear. It is essentially designed for realism, and simulates real-life ATC tasks and equipment such as strip racks and sequence management, handovers to/from neighbouring controllers, flight plans, primary & secondary radars, RDF, CPDLC, ATIS recording... -
9
America's Army 2.5 Assist
Classic America's Army
A GUI client application for Downloading Installing and Playing Americas Army 2.5 on Windows, Mac and Linux with a new custom authorization system. On the server side a Desktop server manager for Windows, Mac and Linux and a Command line dedicated server manager for Windows and Linux. Backend server components include a replacement authorization system using the Battletracker account & stats database and a PunkBuster log streaming server which records players possible cheating activities. -
Full-stack observability with actually useful AI | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
-
10
Linux Air Combat
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
WW2 Combat Flight Simulator. Free. Current Version: 9.93. This is now the world's leading open-source combat flight sim for LINUX. Linux Air Combat ("LAC") runs on almost any desktop LINUX system (even Steam Deck & Raspberry Pi) and generates smooth, high-performance flight. If it runs TOO fast on your hardware (framerates beyond 100 FPS), you should activate LAC's built-in FrameRate Limiter as documented here: https://askmisterwizard.com/2019/LinuxAirCombat/FrameRateLimiter.htm Clean, open source code provides an option to compile yourself, or use our precompiled executable AppImage to eliminate compiling on all popular X86 LINUX distros. Control flight and views with mouse and keyboard, console game controller, or joystick, all easily configured from prominent configuration menus. Learn all about LAC from our primary, official Web Page: http://askmisterwizard.com/2019/LinuxAirCombat/LacOnlineDocs.htm Recent video clip: https://youtu.be/C77C-e8axWs -
11
An OpenGL Billard Game based on foobillard 3.0a with patches, new features (hud, jumpshots, correct detection of lost balls, more sound and graphics etc). Optimized for touch. New designed mouse / touch-control. On Facebook: www.facebook.com/Foobillardplus Some Videos: http://www.youtube.com/user/foobillardplus/videos
-
12
Ur-Quan Masters HD
Ur-Quan Masters High Definition
Ur-Quan Masters HD Mod. An HD remake of Star Control 2. It's the full Ur-Quan Masters game but also featuring a high resolution mode, new features, & new artwork. -
13
Kirstens Viewers
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
Kirsten’s Viewer is a fast, modern Third‑Party Viewer (TPV) for Second Life, registered under the official TPV directory. It’s built for creators, photographers, and advanced users who want a clean, modern viewer with a focus on high performance on high end PC's Anaglyph 3D Mode , OpenCL‑based Visual Effects, Aggressive Optimisation, vcpkg + PowerShell One‑Click Build Automation, Highly Tuned Graphics Path , Many Other Cutting‑Edge Features — ongoing experimental work, performance improvements, and creator‑driven enhancements continue to push the viewer forward. -
14
Odamex
Odamex is a free, cross-platform, modern client-server Doom engine
Odamex is a free, cross-platform (Mac, Windows, Linux) modification of the Doom engine that allows players to easily join servers dedicated to playing Doom online. The goal of Odamex is to add enhancements to Doom while still retaining that "classic Doom feel" we all know and love about the original game. -
15
Crossfire RPG game
Cooperative multiplayer graphical RPG and adventure game
Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 14 races, 16 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband. -
16
Terasology
Open source voxel world
Terasology is a free and open-source survival and discovery game set in a voxel world. Influenced by Minecraft, Dwarf Fortress and Dungeon Keeper, it offers a unique and enjoyable building and playing experience. Terasology requires Java 8 and an updated graphics card driver. -
17
TKD Scoring Wi-Fi
TKD Scoring Wi-Fi Server supporting Android and IPhone clients
Scoring Wi-Fi PRO system was created by Taekwondo people like you and we use the scoring system in all our classes, just like you We created this app few years ago to provide an effective, professional low cost solution with the same benefits and feeling experience, or even providing a better experience than any existing wired professional tournament solution The success of the application in our Taekwondo sparring classes where our members described the application as “Holy crap this is incredible! This looks even more professional and easier to use than any of the programs I’ve ever seen used at comps.” and “Hey... just installed everything and it’s unreal! Everything works perfectly, looks great!” encouraged us to make it public for everybody Like any scoring system the “TKD Scoring Wi-Fi” system has few basic components: *TKD Scoring Wi-Fi Server(PC or Android) *TKD Scoring Wi-Fi Client(Android or IPhone) *TKD Scoring Wi-Fi Remote Score Display (Android) -
18
OpenKore
OpenKore is an automation tool for Ragnarok Online
OpenKore is an automation tool for Ragnarok Online-compatible games, authorized to be used on KoreRO. **MOVING TO GITHUB** As of February 28th 2016, the OpenKore project has moved to GitHub. Please see the OpenKore wiki for more information: http://openkore.com/index.php/Git This SourceForge page will remain online for now, but the project has been locked in "read-only" mode and no more updates will be published here. **DOWNLOADING KORE FROM THIS PAGE WILL GIVE YOU AN OLD VERSION** -
19
Super Smash FLash 2
Super Smash Flash 2 is the most must-play battle game with 28 classic
SSF2 Fan Club: https://www.facebook.com/SuperSmashFlash2FC/ Play SSF2 Online: https://www.freegames66.com/fighting/super-smash-flash-2/ Nice news for those who love Super Smash Flash game, the upgraded version is better and better with an extra 3 playable characters to swell the ranks too (Marth, Zero Suit Samus and Chibi-Robo). Super Smash Flash 2's gameplay is very similar to the official Super Smash Bros. However, the most interesting feature of SSF2 is that character's health is measured by a damage percentage counter. It means a character is attacked, the damage will be accumulated, and percent value gets high. The controls of Super Smash Flash 2 are also different from the previous version. Make use of WASD keys to move Player while the arrow keys are used to control second player. The O and P keys still remain in P-1's possession, the P key for standard attacks, the I key for shield, and the 1 key for taunting. -
20
Performous
The All-in-One music game
Performous is an open-source rhythm/performance platform that contains singing, guitar/bass playing, drumming and dancing all in one game. -
21
FreeCS
FreeCS is a free-software reimplementation of Counter-Strike 1.5.
FreeCS is a free-software reimplementation of Counter-Strike 1.5 running on the FTEQW engine. All it is, is a game-logic re-implementation in QuakeC, an architecture independent programming language. FreeCS is not a game-engine as it relies on FTEQW (released under the GPL V2). All this makes it possible to play FreeCS on virtually any platform! No DRM! No third-party accounts! Just download, play, contribute. The game-logic is written by me with help of twhl.info's wiki. It has since been incorporated into the Nuclide project, which re-implements more than just CS 1.5. -
22
Colossus is a Java clone of the boardgame Titan, a turn-based fantasy wargame for 2-6 players. Each player moves stacks of creatures around a strategic board, recruiting more creatures and fighting enemy stacks on tactical maps.
-
23
MineOS+ is a Tinycore Linux based distro designed solely to host Minecraft Servers. The original MineOS was created by William Dizon aka Hexparrot on the Minecraft forums. MineOS+ is a continuation of his work.
-
24
Egoboo
Free 3D Roguelike action RPG
Egoboo is a working cool 3D dungeon crawling game in the spirit of nethack. Currently it is supported by Windows, Linux and Mac. -
25
2D isometric MMORPG using the SDL framework. Daimonin offers a free public server at https://www.daimonin.org . A Unity client is also in active development.
