Title: FreeCiv Developer: Various.
Version: 2.3.1.
Development Status: Full Version.
Requirements: Web Browser.
Rating: 9/10.
Site: http://www.freeciv.org/Description: A clone of Civilization. While the old software is still available for download, it has been entirely rewritten as a web game in HTML5 and is a pretty impressive demonstration of this technology.
Features: AI, Multi-Player, Web.