|Developer(s)||Flying Bear Entertainment|
|Engine||PopCap Games Framework|
Original: May 2, 2002Deluxe: September 1, 2004
|Genre(s)||Puzzle, virtual pets|
Insaniquarium Deluxe features pets, various modes of gameplay, and a type of currency called "shells". Shells are collected as the game progresses, and they can be used to create a custom Insaniquarium screen saver, to buy bonus pets or to increase the number of pets allowed in each tank.
The first version of the game, developed by Flying Bear Entertainment, is Java-based and available as a free online game. During development a member of the team purchased a goldfish and examined its movements and behaviour. Shortly after, a PDA version was released. The latest version, Insaniquarium Deluxe, was released in September 1, 2004 for PC.
Players must manage a tank of guppies and other aquatic creatures, each stage begins with two guppies in the tank or one breeder which creates guppies. Guppies and other fish drop money, which can be collected by the player and used to purchase fish food and upgrades, such as more aquatic creatures, more filling food, and powerful lasers to repel attackers. Each creature must be kept alive by feeding, whether through fish food bought by the player or other species of fish in the tank. In addition to feeding fish, the player must protect the fish from aliens that periodically enter the tank and attempt to eat the fish. The aliens must be clicked on repeatedly with the mouse pointer in order to defeat them. The deluxe version of Insaniquarium contains eight different aliens, but in the original Java version there are four.
Insaniquarium can be played in Adventure, Time Trial, Challenge Mode, or Virtual Tank. A secret sandbox mode can be accessed when the player wins a silver or a golden trophy, by entering the Konami Code at the main menu screen - it allows full access to unlimited amounts of fish, pets and aliens.
In adventure mode, a player advances through five tanks. Tanks 1-4 have five levels but Tank 5 has only one level in which a player must beat Cyrax, the final boss in order to complete the game. Each level the player must earn enough money to buy 3 egg pieces to advance to the next level. For the first time playing the game, at the end of each level of a tank, the player receives a new pet from the egg. Initially, up to 3 pets could be brought to the tank to help the player, though the player could buy the privilege to bring more pets each level later on with more shells.
Time Trial mode restricts the player to completing the first tank in five minutes and in ten minutes for the three subsequent tanks. Egg pieces no longer count towards finishing a level, but instead add a random pet into the tank (always starting with three pets). Each piece cost doubles the previous one, with the first shell starting at $100. The goal of the Time Trial mode is to make as much money as possible; a 5% of the total money earned will be transformed into shells.
Challenge mode is similar to Adventure mode, but the cost of each item on the board rises by 1% for every five seconds of game time. Buying an egg piece resets the cost of all of the items except for the other egg pieces (the current price will freeze), and several seconds afterwards the costs will start to rise again. The difficulty and number of aliens allowed in the tank also rise as time progresses. Unlike in the adventure mode, after five minutes all purchase options are open so that there is no need to purchase specific upgrades or special fish to be able to buy other items or egg pieces.
The virtual tank mode is where a player can use shells earned during the Adventure/Time Trial/Challenge modes to buy virtual fish in the tank. These fish also get hungry but they never die, and instead, they have mood levels in which they get depressed when neglected. All fish in virtual tanks lay shells instead of coins.
Insaniquarium has received generally positive reviews from critics. IGN gave heavy praise to Insaniquarium for being a puzzle game that uses resource management and gave it a score of 8.3/10 
- Stinky, the snail: helps collect coins from the bottom of the tank
- Niko, the oyster: occasionally gives pearls worth $250
- Itchy, the swordfish: helps kill the aliens
- Prego, the breeder: she occasionally gives birth to a guppy
- Zorf, the seahorse: helps feed your guppies
- Clyde, the jellyfish: helps collect coins
- Vert, the skeleton fish: gives golden coins like a large guppy but doesn't need to be fed
- Rufus, the crab: helps kill the aliens but is limited to the bottom of the tank
- Meryl, the mermaid: sings occasionally which causes your fish to produce more money for a brief period
- Wadsworth, the whale: protects guppies by swallowing them during alien attacks
- Seymour, the turtle: causes money and fish food to fall more slowly
- Shrapnel, the robot fish: gives bombs worth $150 when clicked, but kills a fish if it falls on one
- Gumbo, the angler: attracts guppies away from the aliens during alien attacks
- Blip, the dolphin: unlocks the options, warns when the fish are hungry, warns where the aliens will appear and how much energy remains for each alien
- Rhubarb, the hermit crab: repels fish to the top of the tank to keep them off of the bottom of the tank
- Nimbus, the mantaray: bounces falling fish food and money back up to the top of the tank
- Amp, the electric eel: electrocutes your guppies and turns them into diamonds
- Gash, the shark: helps kill the aliens but gets hungry and occasionally eats a guppy
- Angie, the angelfish: revives dead fish
- Presto: can change into any other pet
- Brinkley, the scuba diving elephant: you have to feed him and he gives money
- Nostradamus: gives snot worth $1 each, and also helps ward off alien attacks
- Stanley, the sea serpent: launches various balls to attack aliens
- Walter, the penguin: when clicked, punches the fish (to make them produce more money) and the other pets (to force some of them to perform their special ability)
- Guppy: is the typical fish, feeds on fish food. When small, it gives nothing; when medium, gives silver coins; when big, gives gold coins; when starfish (see below), gives stars; when king guppy (see below), gives diamonds
- Carnivore: it is a piranha, eats small guppies and gives diamonds
- Starcatcher: it eat stars and produces a diamond
- Guppycruncher: it is a crab, eats small guppies and produces beetles
- Beetlemuncher: it eats beetles and gives pearls
- Ultravore: it is a prehistoric fish, eats carnivores and produce treasure chests
- Breeder: produced guppies
- StarFish: if a guppy eats a star potion becomes a star fish and gives stars
- King guppy: if a guppy survives for more than 10 minutes it becomes a king fish and produce diamonds
- Mini-Sylvester: it is a miniature version of Sylvester, the alien, when are young eats carnivores and when adults eats ultravores, this fish found only in the virtual tank
- Ball fish: this fish found only in the virtual tank, eats exotic food like chicken, ice cream and pizza
- Sylvester: this is the first alien, you can buy it at the store virtual tank
- Balrog: this is the second alien, and looks like a human-lion hybrid
- Gus: this alien dies when fed fish food
- Destructor: this alien is a robot that shoots missiles at your fish
- Psychosquid: this alien is a red octopus that can change color to blue, becoming immune to (and actually gaining energy from) your attacks
- Ulysses: this alien is a Cyclops who shoots deadly balls of energy at your fish
- Bilaterus: this alien is a 2-headed skeleton
- Cyrax: the boss alien, whom you face at the end of Adventure mode
- Insaniquarium Readme: Credits
- "Insaniquarium". PC Magazine. 2004-04-06. Retrieved 2008-04-14.
- Insaniquarium Readme
- Sikora, Drew. "Interview with Flying Bear Entertainment". GameDev.net. Retrieved 2008-04-04.
- McConnaughy, Tim. "IGF:Insaniquarium". GameSpy. Retrieved 2008-04-04.
- Rupert, Samantha (2006-05-30). "Insaniquarium Deluxe Review (PC)". gamedaily.com. Retrieved 2008-04-14.
- Bibby, Jay (2004-06-04). "Insaniquarium". Jay Is Games. Retrieved 2008-04-04.
- Palley, Steve (2005-08-26). "PC Insaniquarium Deluxe Review". GameSpot. Retrieved 2008-04-04.
- "Insaniquarium". Imagine Games Network. 2006-03-09. Retrieved 2014-04-24.
- Insaniquarium Homepage
- Flying Bear Entertainment
- Guide, FAQ, Forum and Resource Center, officially supported by Flying Bear