Hidden Dimensions is a sci-fi card game where you and your opponent control a large baseship and a deck of cards. The cards in your deck represent structures, ships and actions and the goal of each duel is to reduce the opposing base's hitpoints (HP) to zero.
You start each duel with 7 cards, randomly chosen from your deck as your opening hand. Only cards that are in your hand can be played, you'll draw one extra card from your deck at start of each turn.

You can have up to 5 structures and 7 ships at once on the field. Structures are your main source of energy but can also provide defensive and offensive boosts to your base. The energy structures provide, can then be used to launch ships or perform actions. Ships serve both to attack the opposing base as well as defend your own base. Each turn, all your ships that are capable of attacking will deal damage to opposing ship in front of them - if there's no ship in front of them, they'll deal their damage directly to the opposing base. Actions are one-use cards that provide a wide variety of defensive, offensive or ship adjusting effects.

Both players take turns and each turn has the following structure : first, all ships and structures owned by the active player will activate their automatic abilities. Second, the active player gets to draw the top card from their deck. Then the main phase starts, during which the active player can play any number of ships, structures and actions and can also activate any abilities his ships and structures in play might have. When the active player has completed their main phase, any ships they have that are capable of attacking, will do so, then the other player's turn will start.

Hidden dimensions lets you build decks from a collection of almost 500 different cards, divided over 9 cardsets. Various single player modes pit you against computer opponents in different environments and difficulties. Both open and ranked multiplayer modes allow you to duel players from all over the world, and with the challenge and campaign builders you can create content for other players.

Hidden Dimensions stores your progress in a file on your computer. If you are playing this game in a browser, you must make sure that your browser is not set up to delete cookies automatically, as this often includes save files of flash games. Many browser add-ons that claim to protect your privacy also often delete files created by flash games by default.

If you find that the game is not saving you progress, try the following :
Right-click on the game to bring up the flash player menu, in that menu, click 'global settings'. A new window or panel will open where you can change settings regarding storage. Firstly make sure that the site you are playing the game on is allowed to store information on your computer.
Also make sure the game has enough room available to store the savegame. Right click the game, this time choose 'settings', and in the 3rd tab of the small window that pops up, you can adjust how much space is available for savegames.

Note that when you play the game on different sites, your progress will not automatically transfer between those sites - you will have to do this manually.

The stats screen, accessible from the main menu, shows a wide variety of statistics regarding the games you have played. The stats screen contains a number of sections, dividing the various statistics : 'General overview', 'Race breakdown', 'Game stats', 'Card stats' and 'Combat stats'.

You will also find a list of all in-game achievements and your progress towards unlocking them, in the stats screen. Click the 'Achieves' button to see this list of achievements. Every achievement that you unlock will reward you with one card, for almost all achievements you can choose a card from a set of 5 options. Whenever you complete an achievement, you will be told so on the game over screen. On top of that, when you have unlocked achievements of which you didn't select a card reward yet, an arrow will show on the main menu, pointing to the 'stats' entry. To choose a reward, go to the 'achieves' section of the stats screen, browse the pages until you find an achieve that has a reward for you (look for the 'pick a card' text under the icons). Click the achievement's icon to bring up the list of cards this achievement rewards, then click the card you want.

Finally, the 'Card album' shows a list of all cards in HD:Xyth, across all upgrade levels and highlighting those cards you have already collected.

For a list of all achievements, visit this page.
For a list of all cards, visit this page.

HD Xyth has nearly 500 different cards, but there are various ways of collecting cards.

Every single player or multiplayer game you play has a chance of rewarding you with a random card. The chance depends on the overall difficulty level of the game. Adding deckmods to your opponent in quick fight matches will increase the droprate. Increasing the strength of opponent's deck will do the same.
Storyline campaigns also have a chance to reward random cards, but on top of that, the first time you play an encounter on any of the three difficulty levels, you are guaranteed a reward. For the second time you play a certain encounter on a specific difficulty, that guaranteed reward instead becomes a 50% chance, and from the 3rd time you play the same mission at the same difficulty onwards, the chance is 33%.
During any duel you can also collect awards, which are triggered when specific things happen during combat, for instance : you managed to destroy a legend of your opponent. These awards add to the chance to win cards - the more awards you have, the higher the chance to win cards.

For a list of all awards, visit this page.

Depending on which site you are playing HD:Xyth on, you might have access to additional content.
Some content requires an internet connection. Note that some flash game sites can choose not to allow flash games to connect to a database or server, in which case some content and multiplayer games will not work.

Play the game on the NULLL Games site to receive one extra unique action card. If you sign up and play the game while logged in, you will also received a set of 8 unique action cards. These cards can be used in single player and in both ranked and open PvP. If you are not playing the game on the NULLL Games site, you can still get these cards from the daily slots, though they are very rare.

Playing HD:Xyth on the NULLL Games site also gives you early access to the Artifact storyline campaign. Other players will have to wait a while before this campaign becomes available. Campaigns become available over time, this requires an internet connection as the game connects to a database to see if the campaign is ready to be released yet.

Daily Slots : every day you can try your luck at the slots - the slots can reward you with legends and uniques. The first spin is free, additional spins are two tokens each.
Card Trader : the trader will help you complete your card connection - every day the trader will offer a set of cards. Trade away some of your surplus cards or tokens to receive new cards (once every 14 days, the trader offers a legend or unique card).
Daily Challenge : every day you can attempt the daily challenge. The challenge is available in 3 difficulty settings, awarding an elite card for the first win on each difficulty. Complete the challenge on the higher difficulties to receive upgraded elites.
The slots, trader and daily challenge require an internet connection.

Favorite race :
Once you have played 10 or more games, you'll be given the opportunity to choose your favorite race, doing so will give an additional set of cards of the chosen race.

Visit this page to see the cards currently being offered by the card trader.

Click here to return to the manual index page.