The Zod Engine is a multiplayer oriented game where as Z is a single player oriented game.
Their forums also have the original manual and additional maps…
See also: CorsixTH, OpenTH, OpenRA, FreeCNC
I only wish I remembered where I saw all the maps of Command & Conquer…
Here are the maps: Tiberian Dawn Maps; CommandConquerTiberianDawn; Z1
[…] The Dawn of the Tiberium Age is a stand-alone Tiberian Sun to Tiberian Dawn (C&C 95/Gold) total conversion and it was my intention to make it both look and play as similar to Tiberian Dawn as possible, while taking advantage of Tiberian Sun features (these include skirmish, multiplayer support, drag-scrolling, high resolutions, customizable keyboard short keys and many others).
OpenRA is an Open Source reimplementation of Command & Conquer: Red Alert.
We’ve tried to closely follow the spirit of the original game, while modernizing the interface and making use of today’s powerful graphics processors. Our emphasis is on the multiplayer experience, but we might support a single-player campaign at some point, too.
Look what cool movies i have found! Hilarious! 🙂
Somewhat dead, but i am going to have a look at what those guys have done at http://freecnc.org/.
Maybe someday c&c inside your browser as flash/js/silverlight? who knows…