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

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!

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.

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

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!

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

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

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

A little framework for building 2d games in java

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.

Silent Voice Generator is an audio file utility designed to process the quest dialogue text documents exported by the Bethesda Softworks SDK (Construction Set / GECK / Creation Kit) and generate silent voice and lip-synch files based on user-defined parameters. D.A.

A simple, elegant and powerful API for using gamepads like the Xbox 360 or DualShock 3 pad in Java-based games. Will support Windows, Linux, MacOS and OUYA in first release. Simplifies dealing with analog sticks, triggers, button mappings and more. RELEASE PLANNED NOV/DEC 2014 (sourcecode on Github).

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.

Magic Lantern is a framework for developing multimedia applications. It is designed to be a cross-platform solution for multiple targets such as desktops, game consoles, mobile devices and set-top boxes.

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

3d action adventure. Developer playground: [ http://callie.sourceforge.net/jws/jws.jnlp ], Forum: [ http://www.java-gaming.org/index.php/topic,24416.0.html ], GitHub: [ http://github.com/shlax/Callie/ ]

maper is a tile based 2D map/level creation tool. The output is saved as XML Files. (Tile-Graphics in Screenshots are from RM2K3) map tile engine rpg graphic maker editor java

A generic platform for fast and flexible development and delivery of a wide variety of immersive scenario-based games that enable professional skills acquisition. For further information see http://emergo.ou.nl/emergo/community/EN/emergo.htm. The platform is based on ZK framework (http://www.zkoss.org, ZK ZOL license: https://www.zkoss.org/license#peee) and Spring framework (http://www.springsource.org/spring-framework). NOTE: as of 2024, latest (mavenized) code base can be found at https://gitlab.com/ou-teli/emergo. A working docker container example can be composed according to https://gitlab.com/ou-teli/gamebrics-docker-compose.

A portable game engine, which also allow make applets.

Linux Wrath is a rpg/first person shooter Goal: destroy targets. Created at aueb for the computer graphics course and took us 2 weeks to complete (we were 2 people). Project at: http://code.google.com/p/linuxwrath/

Class PictFont allows you to use custom fonts in your MIDlet for mobile phone. Fonts may be proportional, multi-colored or even animated. You can use several fonts in one MIDlet. Fonts can be loaded from jar-file or from the net or from Record Store.

The AdventureMap peripherals addon for ComputerCraft gives players the ability to create stunning adventure maps with custom teleports, block spawning, explosions, and much, much more.

Agle means ANOTHER GAME LIBRARY and ENVIRONMENT Agle has a java client and a c++ linux server

A Java based Game Engine, using LWJGL libraries for OpenGL calls. It's created by Rudolf Horváth, with the help of András Schmidt.