Browse free open source C# Multiplayer Games and projects below. Use the toggles on the left to filter open source C# Multiplayer Games by OS, license, language, programming language, and project status.

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  • 1
    Impostor

    Impostor

    An open source reimplementation of the Among Us Server

    Impostor is an open source reimplementation of the Among Us Server, written in C#. It is among the first Among Us private servers with support for Steam, Itch, Android and iOS. It is a full replacement of the game's official server, so you can expect all of the game's features to be included, and the same fun playing experience. The difference of course is that you get to play on a private and secure server. Impostor has plugin support as well as a server-sided anticheat feature. You also have the option of playing on a server hosted by someone else.
    Downloads: 11 This Week
    Last Update:
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  • 2
    Manic Digger is a public domain 3d block-building game similar to Minecraft.
    Downloads: 21 This Week
    Last Update:
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  • 3
    Stars! Nova
    Stars! Nova is a clone of the classic 4X space strategy game Stars!. While nowhere near the functionality of Stars! quite a few features have been implemented so far. See the Nova web page for details.
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    Downloads: 4 This Week
    Last Update:
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  • 4

    coldev

    C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT

    + C/C++ and PHP projects, Python and Others + 3D ENGINES + Videogames Projects based in Bennugd http://www.bennugd.org Web Page https://coldev.sourceforge.io/
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    Downloads: 15 This Week
    Last Update:
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  • 5
    Digital Paintball 3

    Digital Paintball 3

    3D FPS Digital Paintball 3 Multiplayer Online Game

    Digital Paintball 3 is a first person shooter (FPS) game available on Web, PC, Mac and Linux. Conflate your love for simulated sport with adventure, and what you will get is the best 3D, digital paintball 3 video game of all times! You can enjoy endless hours of pure joy and an assured excitement that gradually mounts without leaving the sanctity of your home or braving the detestation of getting wet or dirty. The new online game that we have developed so punctiliously is sure to leave you regaling to the extent that you will soon be hooked to it. One of the fastest paced multiplayer digital paintball, Paint-ball Online is a super way to exercise your mental prowess, hand-eye coordination, concentration, Digital Paintball 3 Online analytical knack, quick decision-making capabilities, and of course, your love digital paintball 3 for the actual sport. Carry the power in your hand, register at our site and feel the blues blow away.
    Downloads: 1 This Week
    Last Update:
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  • 6
    Dark Orbit Bot

    Dark Orbit Bot

    Bot for online game Dark Orbit

    Dark Orbit Bot is currently not being developed due to lack of time. I recommend http://www.pbdo-bot.com Great bot over there! -jD
    Downloads: 6 This Week
    Last Update:
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  • 7
    snake #

    snake #

    Snake with mutiplayer and AI

    this is a classic snake wrote in C# (.net 4.0) with multiplayer or AI opponent. try to challenge your friends or AI, also on network! please write a review to give me a feedback :-)
    Downloads: 2 This Week
    Last Update:
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  • 8
    Multiverse

    Multiverse

    Open Source Virtual World and MMOG Development Platform

    3D Client (Windows), Server, and Tools to easily create massively multiplayer games and virtual worlds. If you want to contribute to the source code please go to https://github.com/multiversemmo/MultiversePlatform
    Downloads: 2 This Week
    Last Update:
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  • 9
    gmodes
    Examples how to make basic and clever addons and gamemodes using GarrysMod. Also in our svn repository there is a list of stuff maded by members of gmodspain.com. Those files enable future improvement and modifications for lua coders.
    Downloads: 4 This Week
    Last Update:
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  • 10
    Lucky at Bingo's take at a Black Ops RCon tool. Supports kicking and banning, as well as custom map rotations for ranked servers. Provides multiple admin levels (super -admin, admin, etc.). An Android version is being developed (Lucky Rcon Lite)
    Downloads: 2 This Week
    Last Update:
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  • 11
    MineCraft-Texture-Studio-2018
    MineCraft Texture Studio 2018 (1.12/1.12.1/1.12.2) is only for Minecraft 1.11.x/1.12.x Based on Minecraft Texture Studio 1.0.8 My Version is for Minecraft 1.11.x/1.12.x Visual Studio 2017 Framework 4.5 Windows : Vista/win7/win8/win10
    Downloads: 3 This Week
    Last Update:
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  • 12
    Downloads: 3 This Week
    Last Update:
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  • 13
    Vocaluxe
    Vocaluxe is an open source singing game inspired by SingStar™ and Ultrastar Deluxe. The code is hosted on github: https://github.com/Vocaluxe/Vocaluxe
    Downloads: 2 This Week
    Last Update:
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  • 14
    cssRcon

    cssRcon

    Windows rcon GUI for CS:Source servers

    Yet another graphical user interface to the rcon server console of steam source games. Tested with CS:Source and mainly intended to use with CS:Source... Coded in C# with .net v4. Main Features: -sending commands -user Management -map management -eventscripts Management -...more to come The prog is still in development and testing phase. Yet most of the features work flawless.
    Downloads: 1 This Week
    Last Update:
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  • 15
    The Silver Games Project is a collection of open source, multiplayer networked games being developed in Silverlight. All games are tied together with a common lobby server featuring a global ladder ranking system.
    Downloads: 1 This Week
    Last Update:
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  • 16

    SrcdsManager

    Manager application for multiple srcds instances.

    SrcdsManager is designed to make your life easier when it comes to managing multiple instances of srcds under windows. SrcdsManager is a fully featured tool, that allows you to install, update, start, stop, and restart instances of srcds in just a few easy clicks. SrcdsManager is still actively under development, and as such you can expect new features and updates regularly. Be sure to check back to make sure you're running the latest version for all of the newest features and tools
    Downloads: 1 This Week
    Last Update:
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  • 17
    A 360 game created by 2 college kids under development. A sci-fi hack and slash.
    Downloads: 0 This Week
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  • 18
    Downloads: 0 This Week
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  • 19
    ASS is a project to implement an ELITE-style game with multiplayer capabilities, realistic and physically correct movement in space, trading, lots of ships, planets, guilds, fighting, exploring, aliens, evolving technology... Everything...
    Downloads: 0 This Week
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  • 20
    After gaining some experience in developing online games, this project is being remade in C# and XNA to ease the development process. Additionally, we now use a P2P architecture instead of Client-Server.
    Downloads: 0 This Week
    Last Update:
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  • 21

    Advanced Traffic Simulation

    A mixture of game and simulation for public transport.

    This project is about a game and a simulation to work together. The focus lies on public transport. Manage your line network in your home area. Upgrade your vehicles, build new roads, deal with accidents or plan replacement busses for railroad construction works. But it's also possible to drive the vehicle yourself or just walk around the world and enjoy your line network. By vehicle we mean: train, tram, subway, bus and monorail. By using an addon structure it is possible to customize the whole world or even include non-existing means of transport like the hyperloop. Plan, manage and drive all together in multiplayer. Either competing or cooperative. Discord: https://discord.gg/P3SbVuD VSTS: https://advtrafficsim.visualstudio.com/
    Downloads: 0 This Week
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  • 22
    The Ares Project is a real time strategy game project focused on competition (esport). It has to have a fast, nervous gameplay, and to be well balanced.
    Downloads: 0 This Week
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  • 23
    Asteroid Outpost
    Asteroid Outpost is a 2D tower strategy game written in C# using the XNA framework. I am starting with a vertical slice of the gameplay, so for now, you can only mine minerals from the asteroids, build solar power stations, upgrade your structures, and defend yourself from never-ending waves of enemy ships. Development moved to: https://bitbucket.org/jcpmcdonald/asteroid-outpost/
    Downloads: 0 This Week
    Last Update:
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  • 24
    LVClient or Auto Linh Vuong is a tool for Linh Vuong game of VTC Provider. It seem as 1st auto tool for webgame at this time. With more options and more selection. But have some problem with game provider so we can't make tool better than.
    Downloads: 0 This Week
    Last Update:
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  • 25
    An Open-Source 3D RTS (Real-Time Strategy) video game for Windows PCs that uses the Microsoft XNA game libraries.
    Downloads: 0 This Week
    Last Update:
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