The 1.16 patch is a must for online gaming. Here are the changes:

• Compatibility with Win98 and SBLive!
• Several performance enhancements
• Several crash bugs fixed
• Significantly improved network code
• Included the four bonus maps Defenders, Return to the Throne, The Fall of Avalon and Ascendency
  Note: This patch requires v1.15 of Celtic Kings.

A whole new adventure and two single- or multiplayer scenarios for Celtic Kings! Download the package and run it to automatically install the maps in your Celtic Kings folder. The maps are translated in English, Russian and Spanish.

Have fun with the new mini-games - Defenders and Invaders. They can be started from the adventure screen.
The 1.15 patch is also a must for online gaming:

• Improved performance
• Improved multiplayer stability
• Added update notification button on the main screen
• Improved computer players' behavior (AI)
• The editor allows selection of computer controlled players
• Fixed problems with dual monior configurations
• Ghouls no longer carry 20 food when summoned
• The heroes in adventure mode do not speak as often as before
• The difficulty of the TRATUA adventure mission has been corrected
• Various additional small fixes and updates
  Note: This patch requires v1.10 or newer.

For all gamers which play the German (European) version, apply this patch to make the in-game help system working.
All other version don't have to be patched, you can freely skip this patch.

This patch will update Celtic Kings to version 1.10. In addition to the bugfixes it contains 20 single/multi player maps.
European players do not need to download it since they already have version 1.10

The Celtic Kings: Rage of War playable demo features many hours of gameplay and includes a tutorial, the first mission from the adventure mode, and two single player maps.

Alternative download locations:
Gigex
File Planet
Game's Domain (4 mirrors)

Are your hands already itchy to create your own adventure? Don't miss the CKS documentation. If you need some help, or want to share the things you've learned - meet other level designers at the Celtic Kings forum!

This is a high quality version of the Celtic Kings trailer. You can download it from FilePlanet as well.

For slower connections, you may try the low-quality version of the trailer as well.

Listen and imagine the vast fileds of the Gaul land and the heroes born there in the heat of the battles.