Open Source Java Game Development Frameworks

libGDX is a cross-platform Java game development framework based on OpenGL (ES) that works on Windows, Linux, macOS, Android, your browser and iOS. libGDX provides a well-tried and robust environment for rapid prototyping and fast iterations. libGDX does not force a specific design or coding style on you; it rather gives you the freedom to create a game the way you prefer. Publish your games on Windows, macOS, Linux (including the RPi!), Android, iOS, and HTML5, all with the same code base. libGDX comes with batteries included. Write 2D or 3D games and let libGDX worry about low-level details. Heavy emphasis is put on avoiding garbage collection for ART/JavaScript by careful API design and the use of custom collections. libGDX is a well proven and reliable framework with a sound base and documentation. Furthermore, there are plenty of games built on top of libGDX, many of which are open source.

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

Gold Chest is a new game engine inspired by the old gold-box styled RPG games. My goal is to create a game with the same Look and Feel of the gold-box games while bringing to it newer graphics, sounds, music and network play.

Gamine is a 3D game engine for Android devices.

A cross-platform Duke3D (Duke Nukem 3D) port which provides many new features for mod authors, including an enhanced scripting system and OpenGL renderer. Go to http://www.eduke32.com for downloads and http://bit.ly/dn_3d to get the game!

Ethanon is a 2D game engine focused on the recent video cards for hardware acceleration and shader effects. The engine provides high-quality light an shadow effects with an easy visual interface and a simple and direct scripting system.

eAdventure (formerly <e-Adventure>) is an authoring tool for the creation of point-and-click games, especially designed for educational purposes. eAdventure is SCORM compatible so eAdventure games can be integrated with LMS like Moodle. More info at: http://e-adventure.e-ucm.es

JSettlers2 is a web-based version of the board game Settlers of Catan written in Java. This client-server system supports multiple simultaneous games between people and/or AI bots. Originally written by Robert S Thomas as an AI dissertation (http://sourceforge.net/projects/jsettlers). The active source code is hosted at https://github.com/jdmonin/JSettlers2 including full history; the sourceforge CVS is historical up to 2012-09-28.

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

jAMOS is a cross platform, Java-based reimplementation of François Lionet's AMOS BASIC on the Amiga.

All-In Hon ModManager is a simple software to manage and control Heroes of Newerth Mods and Addons for final users (gamers).

Role Playing Tools for traditional role playing games. Current tools: DiceTool, a die rolling tool that supports complex dice expressions. MapTool, a simple to use internet enabled battle map replacement. TokenTool, for easily creating MapTool tokens

Open source 3D physics and dynamics engine and library written in pure Java. This is a Java port of ODE / OpenDE (Open Dynamics Engine). THIS PROJECT HAS BEEN MOVED TO A NEW LOCATION: http://www.ode4j.org

This simple application written in java decodes the login credentials stored in the file named "lastlogin" in your minecraft folder. DEPRECATED AFTER MC 1.6

3D Client (Windows), Server, and Tools to easily create massively multiplayer games and virtual worlds. If you want to contribute to the source code please go to https://github.com/multiversemmo/MultiversePlatform

AGE is a multi-threaded game engine for Android with OpenGL ES2 shader-based rendering. In-depth GL knowledge isn't necessary to start; use the OBJ loader to import models from Blender and elsewhere, attach textures, and start rendering! Threads run different activities, e.g. initialization, framerate, timer, game cycle. Apartment model with message passing. The drawing cycle is inverted from typical game loops. Framerate has a dedicated timer, and SurfaceView is in on-demand rendering mode. Game Objects (GOs) opt-in to services by implementing the "marker" interface for each one it wants. GOs enter the system via Install Pipeline, an asynchronous "standard" implementation that keys on the marker interfaces and performs the "protocol" for that marker. There are also Event and Uninstall pipelines. Reference by name is encouraged. A trip through the pipeline includes a Bind Name List; allows GO to connect to interfaces in other GOs on the other End.

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

Boss Engine is a graphical API for writing low-resolution 8-bit color applications. It offers easy to use functions for handling graphics, basic i/o and more. Screen access is performed through virtual framebuffers that allow direct read/write access to indexed color screen data. API is coded entirely with native libraries. No third party libraries required.

A portable game engine, which also allow make applets.

!Help Wanted! See Discussions for more details. A platform game demonstrating concepts for 2D platform game creation in Java. Collect the stars and go through the door to advance levels. Graphics courtesy of: https://www.gameart2d.com https://opengameart.org/content/animated-fire https://craftpix.net Levels created using https://www.mapeditor.org/ Project created in the Eclipse Java IDE. Keys: Up, Down, Left, Right - Move Player Space - Jump M - Throw Kunai Q, A - Scroll screen up and down (for debugging)

This started when one of my friends said I couldn't possibly make a full blown video game in Java, and know I have made Minecraft in Java and it consists of an inventory, blocks, and more!

Mobile Network Framework Extension for Android

SDK for Resident Evil Games, this SDK will feature a multitude of applications. Our goal is for the user to be able to do a multitude of tasks across the original resident evil trilogy. Everything from editing room boundaries to event scripting and even 3d modelling.

A suite of four inter-related projects written in Java: Cervantes Game Server. PostModernGames Client. Catcher and Gravity.

Mepper is a general purpose 2D tile-based game map editor. It supports several types of game maps. Mepper supports read/write map/resource using plugins, transit terrain automatically. Proposals/bugs please visit: http://groups.google.com/group/mepper