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A marine biologist called Jennifer wants to design and maintain large aquariums, hoping that one day she will be able to do it professionally. To raise the money necessary to buy expensive equipment and decorations, she dives to collect lost valuables scattered on underwater wrecks.

Fishdom H2O: Hidden Odyssey is a hidden object and the sequel to a previous tile matching title. As the biologist, the player has to buy new fish, plants and other items to customize an aquarium, shown as the main game screen. The equipment available to purchase is organized on three tabs at the bottom, for types of fish, decoration and comfort. The shop items can be bought and placed anywhere on the aquarium with the mouse. Each new addition increases one of three meters at the top right, measuring the quality of the fish, beauty and comfort. The goal is to completely fill them to earn a star and unlock the next aquarium.

The money required for the shopping is acquired in the hidden object sections. After clicking the dive button, Jennifer swims to a shipwreck, where every item collected is converted in some cash. These locations are random separate screens where the player must find several objects. Most of the time, the goal is to find and click on all the items from a list at the bottom of the screen, within a time limit. The time restriction can be turned off in the options menu. Some variations of gameplay occur: in Collectables, the objective is to find repeated instances of objects of the same type; in Gold Rush, the goal is to collect all the objects made of gold as fast as possible, before time runs out; in Quick Eye, the player has to find one of three items listed at the bottom, on ten turns, with some seconds added to the timer after each object is found.

The hint button is a jar filled with seahorses at the bottom-right. Clicking on it releases one of the creatures, that swims towards one of the required objects. Seahorses can be found hidden on the screen, and can be collected from the scenery for extra hints.


Fishdom H2O: Hidden Odyssey Macintosh Title / loading
Fishdom H2O: Hidden Odyssey Windows Fully decorated Hawaiian aquarium - in this game perhaps the best balance between preventing a tank from being too crowded and preventing it from looking empty has been achieved.
Fishdom H2O: Hidden Odyssey Windows Gold rush
Fishdom H2O: Hidden Odyssey Windows How to play

Promo Images

Fishdom H2O: Hidden Odyssey Screenshot
Fishdom H2O: Hidden Odyssey Screenshot
Fishdom H2O: Hidden Odyssey Screenshot
Fishdom H2O: Hidden Odyssey Screenshot

Alternate Titles

  • "FishDom H2O. Подводная одиссея" -- Russian spelling
  • "Fishdom H2O: Hidden Odyssey HD" -- iPad title

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Critic Reviews

Family Friendly Gaming Nintendo 3DS Jul 04, 2013 79 out of 100 79
Softonic Windows Jun 12, 2009 3.5 Stars3.5 Stars3.5 Stars3.5 Stars3.5 Stars 70
GameZebo Windows Apr 24, 2009 3.5 Stars3.5 Stars3.5 Stars3.5 Stars3.5 Stars 70
Cubed3 Nintendo 3DS Oct 30, 2014 6 out of 10 60
Nintendo Life Nintendo 3DS Jul 08, 2013 5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars 50
FNintendo Nintendo 3DS May 23, 2014 4 out of 10 40
Gamegravy Nintendo 3DS Jun 06, 2014 2.7 out of 10 27
Pure Nintendo Nintendo 3DS Jun 29, 2013 Unscored Unscored


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The game can be set as the default screensaver, showing the user-built aquariums with fish swimming around.
Contributed to by リカルド・フィリペ (168573), Macs Black (80151) and me3D31337 (61108)