Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.

Zentia - Zentia is a Free-to-play, 3D Action-Adventure, Strategy, MMORPG, Fantasy and Browser-based video game developed by Pixel Soft and published by ChangYou.

Anchor CMS - Free and lightweight blogging system

Dragon Eternity - Dragon Eternity is a Fabulous, Free-to-play, Action-Adventure, Massively Multiplayer Online, Browser-based, Fantasy, and Role-playing video game developed and published by Game Insight.

Textpattern - Textpattern is an elegant content management system that is free, open source software.

Atlantica Online - Atlantica Online is a Fantastic, Action-Adventure, Free-to-play, Massively Multiplayer Online, Fantasy, Tactical, Browser-based and Role-playing video game developed and published by NDOORS Corporation.