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.

  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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  • The Original Buy Center Software. Icon
    The Original Buy Center Software.

    Never Go To The Auction Again.

    VAN sources private-party vehicles from over 20 platforms and provides all necessary tools to communicate with sellers and manage opportunities. Franchise and Independent dealers can boost their buy center strategies with our advanced tools and an experienced Acquisition Coaching™ team dedicated to your success.
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  • 1
    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: 3 This Week
    Last Update:
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  • 2
    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: 2 This Week
    Last Update:
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  • 3
    Multi-User Character Kingdom (MUCK) engine and client providing a first person view point 3D-world which can be created by users, and which uses a system to provide quick gameplay by slowly downloading Objects/Textures over time once in the world.
    Downloads: 0 This Week
    Last Update:
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  • 4
    A highly advanced Air Traffic Control Simulation written in Java, running standalone or in distributed multi-player mode using JORAM JMS, Sonic MQ, or Tibco.
    Downloads: 0 This Week
    Last Update:
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  • All-in-one security tool helps you prevent ransomware and breaches. Icon
    All-in-one security tool helps you prevent ransomware and breaches.

    SIEM + Detection and Response for IT Teams

    Blumira’s detection and response platform enables faster resolution of threats to help you stop ransomware attacks and prevent data breaches. We surface real threats, providing meaningful findings so you know what to prioritize. With our 3-step rapid response, you can automatically block known threats, use our playbooks for easy remediation, or contact our security team for additional guidance. Our responsive security team helps with onboarding, triage and ongoing consultations to continuously help your organization improve your security coverage.
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  • 5
    RTS game engine contributions to Stratagus. RPG mode, first-person mode, underground areas and more are planned. A distribution of Stratagus with the contributions compiled in will also be released here.
    Downloads: 0 This Week
    Last Update:
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  • 6
    Avagor: This project attempts to create an CRPG that includes a part of economic simulation and a part strategy game. It is highly generic and nearly everything is randomly generated at runtime.
    Downloads: 0 This Week
    Last Update:
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  • 7
    COTB is a space sim putting you player in command of a capital spaceship in a realistic universe. You have a crew with different skills for the jobs of Pilot, Gunner, Engineer, Scanning, Repair etc. and control the ship by giving orders. See Wiki.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Single or multiplayer strategy game centered around evolution. Cells dynamically interact with their world based on evolved abilities. Accumulation of evolution points allows you to evolve select members of your cell colony.
    Downloads: 0 This Week
    Last Update:
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  • 9
    An Open Source portable pure Java game library with example games, Swing-based sprite animation engine, deployment framework, and firewall tunneling networking. The code is documented in the book Advanced Java Game Programming by David Wallace Croft.
    Downloads: 0 This Week
    Last Update:
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  • Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight Icon
    Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight

    Lock Down Any Resource, Anywhere, Anytime

    CLEAR by Quantum Knight is a FIPS-140-3 validated encryption SDK engineered for enterprises requiring top-tier security. Offering robust post-quantum cryptography, CLEAR secures files, streaming media, databases, and networks with ease across over 30 modern platforms. Its compact design, smaller than a single smartphone image, ensures maximum efficiency and low energy consumption.
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  • 10
    Distributed Fair Dice Roller is a Java component that provides online games with a set of fair dice. Clients each contribute to the dice results, and can verify that all rolls were random, fair, and no other player could cheat.
    Downloads: 0 This Week
    Last Update:
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  • 11
    EtherStrategy is a space-based strategy and simulation game that implements: a fully 3D universe; realistic physics; complex social, civic, and technological aspects of governance; advanced, learning artificial intelligences; and hopefully great funitude
    Downloads: 0 This Week
    Last Update:
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  • 12
    FaWoSi will be a Fantasy World Simulation where players can control different characters and interact with each other.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Massively Multiplayer Space Trading and Combat game. This is an online strategy game, not a 3D space sim. Incorporating ideas from games such as Stars!, SE3, MOO, Tradewars, MUD/MOOs, Dune II, SimCity.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Fleet Command is a massive multiplayer browser game situated in a futuristic space environment. You can colonize planets and command fleets of civilian or military space ships. The game features economy, diplomacy and combat.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15

    FreeTown

    FreeTown is a city simulator game.

    FreeTown is a city simulator game based on some of the ideas of SimCity 2000, including a isometric view and new features. As Java application can be played in a large number of devices and operating systems. Development is currently in a very early stage.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    This is a Java Space 2D game based on a MySQL backend database and manager. This game inspiration is based on a EVE Online game with various new features and ideas.
    Downloads: 0 This Week
    Last Update:
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  • 17
    Imperium Mundus is a real time strategy game written in pure Java (Java 2 SDK 1.4.2). The game objectives are many: hold your own territories, capture enemy territory, establish or join strong alliances, conquer the whole world or just try to survive.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Infinite Wars is a team-based space-shooting game with elements from RTS-games. Per team there can be one commander managing the team while the other players fight in small space-ships trying to compete with the other team.
    Downloads: 0 This Week
    Last Update:
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  • 19
    A simple but addictive multi-player real-time network strategy game. Control the movement of your armies over the map grid in a strategic manner in order to defeat your opponents. Roughly based on the unix game XBattle.
    Downloads: 0 This Week
    Last Update:
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  • 20
    This project is a conversion of AATrade (written using PHP) to a Java based architecture. The project is based upon similar projects such as BNT, NGS, Trade Wars 2000 and Ultimate Universe. Web-Based browser solution first followed by a client tool.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Jexpedition is a 3D strategy/simulation of an unfortunate deep space cartographing team. Arriving on site, they notice having run out of fuel. Slowly a few worried questions begin to crystallize: Why were we sent? What is this place? Will anyone survive?
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22

    MekaWars

    Programming-game written in Lua

    MekaWars is a game of the programming-game genre: in this kind of games like JRobots or Gun-Tactyx the player programs the AI of his team of bots and then watch them fight against teams programmed by other players. In this case the game is set in outer space and the players write the control script of star-fighter pilots and star-ship captains. The players write the AI of their bots using the Lua programming language.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Pure Java full-featured multi-player gaming system Pluggable, configurable game engine Distributable, load-balancing, "world engine". flocking, Genetic Algorithms and neural networks 3D clients, ZMUD(tm) clients, regular TELNET access (TCP/UDP
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    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: 0 This Week
    Last Update:
    See Project
  • 25
    A big-sized project for Software Engineering at Complutense University of Madrid, Spain. E.V.A. stands for Artificial Life Evolution and it´s a game and simulator of living 3D creatures moving all over different environments and reacting to them.
    Downloads: 0 This Week
    Last Update:
    See Project
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