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
    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: 106 This Week
    Last Update:
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  • 2
    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: 39 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: 28 This Week
    Last Update:
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  • 4
    Corewar is a game played vicariously through the action of assembly language programs written in a language called Redcode. Corewar is discussed in the Usenet group REC.GAMES.COREWAR; the reference implementation of this game, pMARS, is maintained here.
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    Downloads: 20 This Week
    Last Update:
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  • 5
    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: 15 This Week
    Last Update:
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  • 6
    x3d

    x3d

    X3D is the open-standard format for 3D graphics scenes on the Web.

    Extensible 3D (X3D) Graphics is a royalty-free International Standard for real-time interactive 3D graphics on the Web, providing unsurpassed interoperability for 3D communications on the Web. This project includes source for example X3D scene libraries and multiple X3D codebases produced by Web3D Consortium members. All open-source contributions are welcome.
    Downloads: 15 This Week
    Last Update:
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  • 7
    CarDriving
    The very basic of a java 3D car driving game, freely expandable including a built-in basic 3D object editor and a more complex road+objects editor. Source code available, no OpenGL.
    Downloads: 11 This Week
    Last Update:
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  • 8
    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.
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    Downloads: 13 This Week
    Last Update:
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  • 9
    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: 6 This Week
    Last Update:
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  • 10
    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: 2 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: 3 This Week
    Last Update:
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  • 12
    JManagementGames

    JManagementGames

    Collection of simple Java Mangement Games

    Collection of simple Java Mangement Games Currently available: Restaurant 1.1.0 Transport Company 1.0.6 Chauffeur 1.1.0 Farm 1.0.4 City 1.0.1 Supermarket 1.0.0 Mall 1.0.0 Airport 1.0.1 Rail Company 1.0.0
    Downloads: 5 This Week
    Last Update:
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  • 13
    Provides a spoken command interface for SARGE (Search And Rescue Game Environment)
    Downloads: 4 This Week
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  • 14
    MOVED: We have moved development to Google Code: http://code.google.com/p/jbox2d/
    Downloads: 1 This Week
    Last Update:
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  • 15

    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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  • 16
    OpenRock Curling is a free curling game with network support. It is written in Java and should run all platforms with JRE 6 or later.
    Downloads: 2 This Week
    Last Update:
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  • 17
    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: 1 This Week
    Last Update:
    See Project
  • 18
    eMo AERO Boss
    eMo.AERO.Bo$$ is an airline management game (real time economical strategy game). You are CEO of newly build airline. Your mission is to rule it, guide it and lead to World number One Airline. The game was created with inspiration of old Aerobiz game for Sega/Nintendo.
    Downloads: 1 This Week
    Last Update:
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  • 19
    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: 3 This Week
    Last Update:
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  • 20
    SSPTool
    This program for SimCity 4 provides an interface for various plugins. The DAMN Manager is one of the famous plugins.
    Downloads: 3 This Week
    Last Update:
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  • 21
    freecity will be a city simulation game with high flexibility and combining features from other similiar games. Currently in pre-alpha, but if you can program (or, even better, make graphics) please have a look in our subversion-readme.
    Downloads: 3 This Week
    Last Update:
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  • 22
    Multibody dynamics simulation package with frictional contact and collision detection
    Downloads: 3 This Week
    Last Update:
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  • 23
    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: 1 This Week
    Last Update:
    See Project
  • 24
    JaWator is a Wa-Tor JavaApplet; a predator-prey simulation resembling a natural ecosystem, this Cellular Automaton delivers fluctuations similar to the Lotka-Volterra equation. Inspired by A.K. Dewdney, Wa-Tor ecosystem (Scientific American, 1984)
    Downloads: 2 This Week
    Last Update:
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  • 25
    JbiLoan

    JbiLoan

    Simulate a loan from its rate, amount and duration

    Open source simulator of loans. Loans depend on 3 data : the amount to borrow, the bank rate, the duration. But sometimes, you want to compute one of these data, knowing 2 of them only, plus the monthly payment. That's exactly what JbiLoan is made for! Moreover, this tool allows you to compute the full simulation of the loan, including the insurance rate and the bank expenses. And finally, it displays the real/effective rate and compares the loans together, so that you know exactly which one is really the cheapest!
    Downloads: 2 This Week
    Last Update:
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