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adVM aims to provide a flexible engine for creating adventure games. The new version is written in java and uses ADL (see http://www.hcesperer.org/adl/) as the scripting language.
The PBEM Engine is a server application and toolset to run Play-By-E-Mail games. It enables people to run multiple PBEM games of multiple rulesets simultaniously.
XScape is a brand new Runescape2 server engine, based on the idea of a central login server, (Also known as a network of servers) which each server will connect to, and verify the user accounts on.
Ovoron's Legacy is a fantasy Play-By-E-Mail game that runs on the PBEM Engine. Each player command an empire of fantasy creatures, interacts with other players, and must seek to conquer the world.
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Eternal Realms is a game engine written in Java that seeks to create worlds where the users craft their own universe. Eternal Realm derivatives are massively multiplayer roleplaying games, where a person guides their player down any path they desire.
DurDoomed is a FPS made with the jMonkeyEngine (3D engine written in Java). This FPS will be a lab for testing and optimizing, if possible, the jMonkeyEngine
Java Weapon Script Engine is a Java library for implementing dynamic weapons. Weapons are specified and parsed from script files. The goal of the project is to be able to generate any kind of weapon and behavior.
Agilis is a simple, fully featured Sprite engine for Java applets and applications. It builds on top of TinyPTC, and provide collision detection, sprite scaling, opacity rendering and animation handling.
This project has been split into 2 separate projects, see sf.net projects pbemengine for the PBEM Engine, and ovoronslegacy for the Ovoron's Legacy ruleset
quake4j is a Java implementation of the original Quake engine. The game client can be launched from any web browser with one click, and lets you play deathmatch games with other quake4j users.
A game engine, written in java, intended to be customizable and portable. It uses Groovy (and probably other scripting languages supported by the JVM) to reproduce behavior of tabletop and miniature games, like Warhammer 40K (TM). PROJECT NOT
CCGMachine is a generic collectible card game engine which allows developpers to implement the game of their liking while keeping a consistency between game interfaces.
Ng is a 100% Java Roguelike game engine that supports single and massive multiplayer games. SimpleGame is a prototype game that demonstrates most features of the engine and is included in all releases of Ng.