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

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  • 1

    Corewar

    Write programs in assembly that battle each other in Corewar

    Corewar is a game played vicariously through the action of assembly language programs written in a language called Redcode. Corewar is discussed on discord at https://discord.gg/YxrbaQDT9z and on reddit at https://www.reddit.com/r/corewar/ The reference implementation of this game, pMARS, was originally maintained here. Development has moved to https://github.com/pmars-org but we will continue to post releases here.
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    Downloads: 118 This Week
    Last Update:
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  • 2
    FTLEditor

    FTLEditor

    A tool to edit profile and saved game files for FasterThanLight.

    A 3rd-party tool to edit user files for the game FasterThanLight. With this, you can unlock any or all ships and achievements in your user profile, or tweak most aspects of saved games: crew, systems, weapons, fires, breaches, etc.
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    Downloads: 84 This Week
    Last Update:
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  • 3
    Biogenesis
    Biogenesis is an artificial life program that simulates the processes involved in the evolution of organisms. It shows colored segment based organisms that mutate and evolve in a 2D environment. Biogenesis is based on Primordial Life.
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    Downloads: 53 This Week
    Last Update:
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  • 4
    VASSAL Engine
    VASSAL is a game engine for creating electronic versions of traditional board and card games. It provides support for game piece rendering and interaction, and supports play by email or over a live connection.
    Downloads: 34 This Week
    Last Update:
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  • 5
    Kelpie Flight Planner for Flightgear
    The Kelpie Flight Planner for Flightgear. This Java based Gui flight planner uses the airport and navaid databases of the Flightgear, allowing the user to search for airports and navigation aids and plan flights between them. [Note: Requires Java 1.10 or above] This program is no longer being actively developed or supported. All future work is being undertaken on a port to Rust/Gtk at https://github.com/shartrec/kelpie-flight-planner. But is still in the very early stages.
    Downloads: 13 This Week
    Last Update:
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  • 6
    SARGE - Search And Rescue Game Environment is a multi-player training game for robot operators which also supports agent based robot control for simulation work via TCP.
    Downloads: 41 This Week
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  • 7
    A text-based soccer match generation engine. Reproduces the match with statistics and report. To be used as a library by integrating with 'host' applications. Download 'desktop' version or try it at http://www.pubsoccermanager.com
    Downloads: 10 This Week
    Last Update:
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  • 8
    Tyrant is a graphical roguelike fantasy adventure game. It features intricate randomly generated landscapes, towns and dungeons. It is written in Java with a highly extensible game engine.
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    Downloads: 7 This Week
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  • 9
    The program Virtual Network Simulator for Web 2.0 is a tool that allows the simulation of assembly and configuration of computer network projects, virtual or physical. It also simulate the sending of a package between the hots of origin and destinati
    Downloads: 7 This Week
    Last Update:
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  • 10
    CraftBukkit-CommandsEX

    CraftBukkit-CommandsEX

    Modular Minecraft server plugin - commands, events, ...

    This project gives you freedom to get a fully-customized plugin for CraftBukkit Minecraft servers. You choose what to include and build it up. No more command collisions, no unnecessary memory and processor overhead on your server.
    Downloads: 19 This Week
    Last Update:
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  • 11
    Helping you rifle through other people's packages. The DBPF2 file format is used for most of the content in the Sims 3 engine. This project provides a Java-based API, and supporting GUI application, to unpack, browse, edit and repack these files.
    Downloads: 7 This Week
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  • 12
    OpenPatrician

    OpenPatrician

    Naval trade simulation in the north and baltic sea during 1250 - 1500

    OpenPatrician is a free implementation in Java of Ascaron's classic The Patrician and The Patrician 2. The game is economic simulation located in the European North- and East-Sea in the late middle age.
    Downloads: 9 This Week
    Last Update:
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  • 13
    ATCJ: Air Traffic Controller Game, let you direct flights into and out of the flight arena and airports, written in Java, small and portable, based on the classical UNIX terminal based Air Traffic Controller Game (atc) created by Ed James.
    Downloads: 5 This Week
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  • 14
    A computer version of the World War 2 tactical boardgame "Squad Leader" originally published by The Avalon Hill Games Company. Play any scenario against anyone around the world!
    Downloads: 3 This Week
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  • 15
    Rail World is a railroad train simulation game designed to bring the features of model railroading to the desktop using actual aerial or satellite photographs as the backdrop for maps. Control multiple trains, switches, load/unload cargo, and more.
    Downloads: 8 This Week
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  • 16
    XHSI - glass cockpit for X-Plane 10 & 11
    XHSI (eXternal High-resolution Simulator Instruments) is an add-on for the X-Plane flight simulator. It displays the PFD, ND, EICAS, Flaps and Gear indicator, Clock/Chronometer, etc... in separate windows. In general, the instruments can be displayed in B737-NG or A320 style.
    Downloads: 7 This Week
    Last Update:
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  • 17
    miniTraff
    Simulates a city grid of streets, intersections and traffic signals. It supports 8 phases with overlaps, right and left hand drive, turnouts, permitted left and right on red, density and semi-actuation and help screens for every panel.
    Downloads: 8 This Week
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  • 18
    The Rossum Project is an attempt to collect and distribute robotics software. We are seeking help with our first project, a mobile-robot simulator featuring a 2-D virtual world, and new work including artificial intelligence and robot-control logic.
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    Downloads: 3 This Week
    Last Update:
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  • 19
    The Virtual Storyteller is a multi-agent framework for generating stories based on a concept called emergent narrative.
    Downloads: 3 This Week
    Last Update:
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  • 20
    An experiment in paired-programming to simulate elevator behaviour. Development is done entirely in Java. The finished product will provide a framework for additional simulations and some ability to test different elevator behaviours.
    Downloads: 5 This Week
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  • 21
    Java Flight Simulator is a 3D flight simulator that was programmed using Sun Microsystems' Java3D API. It offers two game modes: Solo Flight - fly and fight against AI enemy planes, and Network Dogfight - host or join a free-for-all network game.
    Downloads: 4 This Week
    Last Update:
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  • 22

    Mobile Learning Business Game

    Mobile serious game about business consulting for students

    This mobile business game was developed at Massey University and AUT in Auckland New Zealand for use by students. As part of the funding contract with Ako Aoteroa the game is being made freely available for public use. The SourceForge site is a work in progress, but currently hosts two versions of the game, the original one that runs on Nokia S60 phones, and the current version, which runs on Android devices. Source code is provided for the Nokia version. The source for the Android version will be uploaded when intial testing is complete.
    Downloads: 4 This Week
    Last Update:
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  • 23
    Virtual Plant
    A test project aiming to create a command-line interfaced virtual pet, with plants instead.
    Downloads: 4 This Week
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  • 24

    Biogenesis Color Mod

    Mod for evolution simulation and artificial life program Biogenesis

    You can download the Color Mod at the Biogenesis main site too (included in the main download now). You also find the sourcecode there. If you want to post a review, remember that this is only a modification, so comment on my changes, not on the simulation. Original project by Joan Queralt Molina: https://sourceforge.net/projects/biogenesis/ Includes Tyler Colemans "Features Mod": https://sourceforge.net/projects/biogenesisfeatu/ Biogenesis discussion forum: https://sourceforge.net/p/biogenesis/discussion/ Biogenesis runs faster (at least for myself) if you open a Google Chrome window (don´t know why :D)
    Downloads: 2 This Week
    Last Update:
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  • 25
    Dioscuri is an x86 computer hardware emulator written in Java. It is designed by the digital preservation community to make sure that documents and programs from the past can still be accessed in the future. Dioscuri is durable and component-based.
    Downloads: 2 This Week
    Last Update:
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