Cross platform 2D game creation framework with Python bindings
FIFE is a cross platform 2D game creation framework written in C++ with Python bindings. It's designed to be flexible enough to support a wide variety of 2D game types but specializes in 2D isometric type views.
The COMPASS Engine is a framework for building online games. It aims to use existing web technologies (HTTP, XML, JS) to produce a MVC architecture following RESTful principles.
Penguins! Snowballs! Igloos! Fish! FUN! Snowballz is an action-packed kid-friendly RTS. Download your free copy today! NOTE: An old defunct version is on the SF download page. For the latest version, visit the homepage at http://joey101.net/snowballz