Open Source Java Real Time Strategy Games

Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world

Java library and application to edit game files from all Clausewitz-engine games (EU3 and later, including EU4, Victoria 2, Hearts of Iron 3, EU: Rome, March of the Eagles, and Crusader Kings 2 and 3) and their saved games. Source code is now hosted at https://github.com/mmyers/eug. Sponsor on Patreon: https://www.patreon.com/user?u=60455822

Crystal Space is an Open Source 3D SDK for Unix, Windows, and MacOS/X. It renders with OpenGL and features GLSL shaders, CG shaders, deferred rendering, dynamic shadows, bullet based physics library, terrain engine, skeleton based animation meshes, exporter for Blender, portals, etc...

This project uses Ardor3D to create a space based real time strategy game. You fight for the control of planets which build new attack ships for you. It is inspired by games like Eufloria, Galcon and Sins of a Solar Empire.

Panzer Combat II is a multi-player voice and webcam enabled computer-assisted distributed miniature wargame of World War II tank combat. Firing is done by placing a webcam behind the aiming unit. Distance to target is computed using computer vision. Action inside the tanks is performed on the computer screen while battlefield strategy is played on the miniature terrain. Both camps can use a different laptop or tablet, the game will interconnect. You can try it online : http://server.panzercombat.com/PCII_Web/move.htm Look at battle reports : http://www.flickr.com/photos/panzercombatii Or watch a demo : http://www.youtube.com/watch?v=WcjfV8Odtss 100% CLEAN : http://games.softpedia.com/progClean/Panzer-Combat-II-Clean-95530.html

Tools for parsing and analyzing the JASS scripting language, which used for scripting Maps and AI files in Blizzard Entertainment's (R) Warcraft III (R).

Sloth Online RPG is a 2D fully graphical online game engine. It features rich tile based maps with layers, fully customizable characters and a completely interactive environment. Also included are resources such as map editors, sprites, tiles, and more.

RealTimeBattle is a programming game, in which robots controlled by programs are fighting each other. The goal is to destroy the enemies, using the radar to examine the environment and the cannon to shoot.

A 2D space real-time, action/strategy game. you are in control of a ship that you fly around space fighting enemies and making friends on your way. The main objective is to rescue people from planets and take them to star bases. its writen in java1.4.

This an alternative Java Client for the Hyperiums Game

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.

LiveHack is an HTTP server for a simple, web-based, shoot-em-up game. It is written in Java, so it's small, fast, and secure.

The aim of the FreeRails project is to create a fun game based off the RailRoad Tycoon and RailRoad Tycoon II games.

JCraft is a platform independent, isometric, tilebased, real-time strategy (RTS) game engine in Java. Supports: Multi-, Singleplayer-Mode, fullscreen, Configurable engine interface that allows to create games with a large variety of engine features.

Galactic strategy Open Source browsergame. Replacement of the former game Net-Assault.

Just as the name implies: It converts Crusader Kings savegames into Europa Universalis III: Heir to the Throne. Props to Ulmont and Yvesp for the original CK->EU3 converter.

The aim is to create an optimized version of the FreeRails project. The aim of the FreeRails project is to create a fun game based off the RailRoad Tycoon and RailRoad Tycoon II games. Download and webstart versions are available at the website or Wiki.

This is a web based, multi-player role play game. It is set in outer space. The core programming language is Java. Technologies used are Java Beans, JSP, Servlets, XML and XSLT.

The ISOCalc (Isometric Calculator Engine) is a class library for isometric plot games. The ISOCalc can be used as a calculator background for every game with different graphic front. (Special Thanks for OpenTTD Team)

A bare bones RTS game framework. It has networking and replay support, and have some building blocks to build AI agents (discretized path finding in a continous world). Update (2025. Jun): javax.xml.bind.annotation.XmlAccessType was removed from JDKs later than 1.8. So use the project with JDKs from 1.6 to 1.8. Write in the forum if you're interested in running it on a more modern JDK. The demo program's entry point is Dom1Bootstrapper. You can download a runnable demo jar from the files. If your default JDK is higher than 1.8, it won't start on double click. Update (2014. May 9.): Detailed documentation is uploaded (i.e. my thesis). It examines the system from the user's perspective, but includes some internal details too. Of course it has some extra chapters here and there to conform to the format of a thesis. Check it out at the "Files" section (r221). There's also a corresponding src/bin/javadoc bundle there.

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.

Railz is a railway strategy/management game based upon the jfreerails source code base.

This is an RTS that is made to be as realistic and extensive as possible. Everything from morale to social welfare is included. Morale plays a big part, and can be changed through many different ways. Uses Java.

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.

Java Clone of Age of Empires