Game Info

Hidden Dimensions : Xyth, also known as HD Xyth or HD:X, is a collectible cards game set in a science-fiction environment, more precisely, in the Xyth galaxy. The cards represent ships, structures and actions, giving players the means to duel their opponents.

There are 8 sets of cards in the game, representing the 8 alien races in the Xyth galaxy as well as a smaller set of relic & artifact cards. Each race has its own type of energy, which is needed to play cards of that race.

HD Xyth is the third game in the Hidden Dimensions series, greatly increasing the number of cards available in-game as well as adding several new gameplay modes and storyline campaigns.

HD Xyth was released on 9 november 2012 on the NULLL Games website. The standalone version was released on 2 december 2012.

Version Info

Latest version : V 2.015 (17 april 2013). Read the latest patchnotes.

For the list of all versions so far, visit the NULLL forum.

Play HD Xyth on the NULLL Site nulllicon.jpg
Play HD Xyth at Kongregate
Play HD Xyth at Newgrounds

There's also a HD Xyth version which you can download and install on your computer (Windows and Mac only).
Click here to download (31.7 MB) (V 2.015)
This download contains an installer which will install the game on your computer. If you already have an older version of the game installed, this installer will automatically replace the old version.
Savegames from any flash version of HX Xyth are compatible with this installed version, for info on where savegames are located and how to copy savegames from one site to another, visit this page.
To run this version of the game, you need to have Adobe AIR installed, which can be downloaded for free here.


Game Manual

The game comes with a tutorial and an in-game help section. The complete manual is also available on the wiki. Click here to read the game manual.


There are 114 achievements to be unlocked in-game. Each unlocked achievement will present the player with a small set of cards from which one card can be chosen as reward.

Additional Links & Info