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.

  • Orchestrate Your AI Agents with Zenflow Icon
    Orchestrate Your AI Agents with Zenflow

    The multi-agent workflow engine for modern teams. Zenflow executes coding, testing, and verification with deep repo awareness

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    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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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.
    Downloads: 111 This Week
    Last Update:
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  • 2
    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: 30 This Week
    Last Update:
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  • 3
    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: 20 This Week
    Last Update:
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  • 4
    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: 10 This Week
    Last Update:
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  • Grafana: The open and composable observability platform Icon
    Grafana: The open and composable observability platform

    Faster answers, predictable costs, and no lock-in built by the team helping to make observability accessible to anyone.

    Grafana is the open source analytics & monitoring solution for every database.
    Learn More
  • 5
    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: 9 This Week
    Last Update:
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  • 6
    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: 19 This Week
    Last Update:
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  • 7
    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.
    Downloads: 5 This Week
    Last Update:
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  • 8
    A PSP porting of SUN's phoneMEAdvanced project (https://phoneme.dev.java.net/), to enable MIDP/PBP/JavaME applications running on PSP. You can also find phoneMEFeature PSP porting from another project: pspkvm(https://sourceforge.net/projects/pspkvm)
    Downloads: 8 This Week
    Last Update:
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  • 9
    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: 3 This Week
    Last Update:
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  • Your Industrial Copilot for Maintenance and Reliability Icon
    Your Industrial Copilot for Maintenance and Reliability

    For organizations looking for a Condition Monitoring and Asset Management solution to avoid machine failures

    Trusted by global brands such as Bosch, Kraft Heinz, Carrier, Hyundai, Johnson Controls, and P&G, Tractian combines condition monitoring, energy efficiency, and a CMMS into a comprehensive, mobile-first solution. With Tractian, you can:
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  • 10
    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: 2 This Week
    Last Update:
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  • 11
    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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  • 12
    MorseLab
    Java-based free software for learning audio and flashing-light Morse code. Features include very flexible audio system, drills based on live news feeds, and adaptive drilling strategies.
    Downloads: 4 This Week
    Last Update:
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  • 13

    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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  • 14
    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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  • 15
    Mins (Mins Is Not Soda) is a racing game based on sodarace.
    Downloads: 3 This Week
    Last Update:
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  • 16
    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: 3 This Week
    Last Update:
    See Project
  • 17
    This is a Stepmania game dedicated for mobile devices for example Mobile Phones, IPods etc. Tha game can use files and packs from original Stepmania game
    Downloads: 3 This Week
    Last Update:
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  • 18
    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: 1 This Week
    Last Update:
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  • 19
    A Java port of the Palm game Space Trader. This port is based upon the C# port at Space Trader for Windows. Recent improvements are being made to enhance it into a full-window application, under a new branch of development. Consult the wiki for info.
    Downloads: 1 This Week
    Last Update:
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  • 20
    Arcus is a Rubik's Cube Simulator written in Java featuring 3D display and cube manipulation. Besides conventional solving, getting from any pattern to any goal pattern is supported. Allows the user to bidirectionally walk through the cube's history.
    Downloads: 2 This Week
    Last Update:
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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: 2 This Week
    Last Update:
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  • 22
    Netrek is a multiplayer battle simulation game with a Star Trek theme. Up to 16 players are divided into two teams that fight each other for dominion over the galaxy.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    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: 1 This Week
    Last Update:
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  • 24
    TOS is a multi-player soccer simulation game and a match simulation engine for on-line soccer management games. TOS can also be used as a tool for multi-agent AI research and education.
    Downloads: 1 This Week
    Last Update:
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  • 25
    Worldlines
    Worldlines visualizes special relativity, as particles near lightspeed trace paths in a 3D slice of 4D Minkowski spacetime. Scenes illustrate time dilation, the twin paradox, length contraction, and Bell's spaceship paradox.
    Downloads: 1 This Week
    Last Update:
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