ModsMegaquarium
Megaquarium mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
1,287 mods, most downloaded first · newest update 12 Oct 2026
Animals888Fish715scenery138tanks108Sharks84Other animals79Extinct and Fantasy64Crustaceans57paints55Mammals46Others45Bugs/Invertebrates42plants39birds36Reptiles35Gameplay34Clams and corals30Rocks29Guest Facilities24Cetaceans21Custom Maps17Accessories16Shark16animal13Modpack11tutorial10
- RickReptile substrate pack 3by rickreptileRickReptile presents Substrate pack 3. A big pack filled with 50 new substrates, all varied and usable in different kinds of tanks, enclosures and terrariums. If you want more substrates you can subscribe to: Substrate pack 1: Substrate pack 2: Do you like all 3 packs, i would suggest then to use...632 downloadsupdated 3 y ago
- Gulf Stream Aquaria - Botanical Binomialsby RappyA simple mod to add scientific names to all official plants. DLCs are not required, but their plants will have the added scientific names if you own them.631 downloadsupdated 8 mo ago
- Green Turtle Reskinby 76561198880010479A new, more accurate look for the Green Turtle (Chelonia mydas). This is a reskin mod - it does not add a new animal to your game, but changes the appearance of the existing Green Turtle. The Green Turtle, despite it's name, is not actually green - the name comes from it's green fat deposits unde...631 downloadsupdated 22 mo ago
- Merry Chromismasby 76561198880010479Merry Chromismas! This mod adds the Spiny Chromis (Acanthochromis polyacanthus) to your game, with six regional forms and a juvenile form.625 downloadsupdated 22 mo ago
- Australian Terrarium Pack - Arthropodsby 76561198880010479Adds 8 new terrarium species to your game! This mod includes: Australian Rhinoceros Beetle (Xylotrupes australicus) Hercules Moth (Coscinocera hercules) Lord Howe Stick Insect (Drycococelus australis) Northern Badge Huntsman (Neosparassus salacius) Peppermint Stick Insect (Megacrania batesii) Que...625 downloadsupdated 9 mo ago
- Nerdy Penguin Aquatics - Hawaiian White Spotted Tobyby RealNerdguinAdds a small puffer from the Hawaiian Islands to the game. Base model by Rappy.620 downloadsupdated 22 mo ago
- Classification Correctionby 76561198880010479Changes the classification of some species to be less confusing and more correct. The Red Bellied Piranha and Pacu have been moved from Serrasalmids to Characins, the Sunshine Pleco has been moved from Ancistrus to Catfish, and the Tinfoil Barb has been moved from Characins to Cyprinids.613 downloadsupdated 6 y ago
- Gulf Stream Aquaria - Blackspotted Pufferby RappyAdds the charming blackspotted puffer (Arothron nigropunctatus) to your aquarium. Unlocks at Rank 6.613 downloadsupdated 13 mo ago
- CA - Phoenix devilby ManoZika7Cinnabar Aquarism's latest mod adds Plectroglyphidodon phoenixensis, the phoenix devil damselfish.612 downloadsupdated 5 y ago
- Jelinobas Marble Theme / Marmor Themaby JelinobasJelinobas Marble Theme / Marmor Thema Marble theme, divided into 2 parts: a) White floor and decorative seat element b) Black floor and Chesterfield seat pad Marmor Thema, aufgeteilt in 2 Teile: a) Weißer Boden und Sitzflächen-Zierelement b) Schwarzer Boden und Chesterfield Sitzpolster611 downloadsupdated 5 y ago
- Mill Of Freedomby 76561199056670115This mod will modify the Spotted Eagle Ray texture, milling animation and it swimming position from the base game! This idea is brought to you by IrritatingFish.606 downloadsupdated 5 y ago
- Yeetus Collections - Angelic Angelfish Mini Packby 76561199033220748Makes a number of the Marine Angelfish available to the player. Have fun unlocking them all! Included: Abe’s Pygmy Angelfish African Flameback Angelfish Asfur Angelfish Bandit Angelfish Blackear Angelfish Blue Girdled Angelfish Blue Queen Angelfish Blue Velvet Angelfish Blueface Angelfish Brazili...603 downloadsupdated 5 y ago
- Khaydar's Bazaar - Rabbitfishby KhaydarAdds the rabbit fish (Chimaera monstrosa) to your game. Compatible with Deep Freeze but can run with the base game.601 downloadsupdated 12 mo ago
- Chengjiang Biota Packby 76561199057124724Adds some animals found in the Chengjiang biota assemblage, which consists of multiple fossil sites belonging to the Maotianshan shales in the Chengjiang County. Contents: Eximipriapulus (Eximipriapulus globocaudatus) Cathaymyrus (Cathaymyrus diadexus) Zhongxiniscus (Zhongxiniscus intermedius) Tu...597 downloadsupdated 4 y ago
- Ze Fush Company - deep sea cartilaginous fishby 76561199090099927original modder ： Amnaa Because Amnaa has been away from the workshop for a long time, I am unable to find him and obtain his permission. If he does not allow me, I will delete this mod。 Spotted Ratfish（Hydrolagus colliei）： I referred to some videos of raising Chimaera in artificial environments,...594 downloadsupdated 3 y ago
- Backstage Modpackby BosjesmanThis mod features several items that will be usefull to make a backstage facility. New backstage holding tanks, filtration to show to the public and an improved filtration buddy! Do you have an amazing behind the scenes and wish to show your visitors it without generating negative prestige? Or do...594 downloadsupdated 7 mo ago
- Mega Fishfood - No Supplementby zytukinThis mod increases the capacity of all base game and Fresh Water Frenzy fish food dispensers. Food dispensers added by mods are NOT effected by this mod. I will be adding mod support as separate mods. After installing the mod, newly purchased dispensers will immediately have the new capacity, dis...590 downloadsupdated 5 y ago
- RickReptile paint buildings 2 packby rickreptileA very large paint pack, featuring 75 paints that fit perfectly for buildings. Materials vary from wood, stone (brick, natural) metal and more. Some pieces also got special roof paints so those are perfect for roof parts. part 1 you can check here: In order to use these paints you must use the mo...590 downloadsupdated 3 y ago
- Gumboot Chitonby 76561199057124724This mod adds the Gumboot Chiton to your game. Contents: Gumboot Chiton (Cryptochiton stelleri)585 downloadsupdated 4 y ago
- RickReptile substrate pack 1by rickreptileRickReptile presents Substrate pack 1. A big pack filled with 50 new substrates, all varied and usable in different kinds of tanks, enclosures and terrariums. If you want more substrates you can subscribe to: Substrate pack 2: Substrate pack 3: Do you like all 3 packs, i would suggest then to use...581 downloadsupdated 3 y ago
- Great White Sharkby Sharking AroundThe Great White Shark (Carcharadon carcharias) is the most infamous species of shark. Being a primarily pelagic species, these sharks can be found throughout most parts of the world, however because of their pelagic lifestyles they do not keep very well in aquaria, keeping this shark will be met...578 downloadsupdated 23 mo ago
- B.A.D. Laboratories Hybodusby nightmare6445Here at B.A.D. Labs we are pleased to announce that our de-extinction department has successfully resurrected the Hybodus. Hybodus is a bizarre shark that had strange horns on top of it's head. This shark has acute hearing so any splashing may entice it to attack. Hybodus also developed a spike o...572 downloadsupdated 3 y ago
- DemoHybridRedPirhanaby stlnegril9This mod adds a hybrid red pirhana as a demonstration on how to implement hybridization. 3 total patterns and 4 colors.570 downloadsupdated 6 y ago
- Nerdy Penguin Aquatics - Mediterranean Parrotfishby RealNerdguinAdds the Mediterranean Parrotfish also known as the European Parrotfish.570 downloadsupdated 2 y ago
- Extended Corner Tanksby 76561199621427987Corner tanks not enough? Enjoy 3 extended corner tanks, for all your fish needs! Supports Deep Walls, Round Deep Walls, and Wall Tanks570 downloadsupdated 8 mo ago
- Subnautica Sea Monkeyby Anniebelle mcAllisterAdds Sea Monkeys and their babies from Subnautica to the game!561 downloadsupdated 3 y ago
- Cenozoic Creationsby DrillHouse recreated creatures from the recent past! A short campaign featuring creatures from Project Artificialis. Important: This mod requires the following mods: Beach Tanks Expanded Deep Beach Tank Collection Diverse Diets Artificialis - Neogene Collection Artificialis - Paleogene Collection Arti...556 downloadsupdated 4 y ago
- RickReptile paint buildings 1 packby rickreptileA very large paint pack, featuring 75 paints that fit perfectly for buildings. Materials vary from wood, stone (brick, natural) metal and more. Some pieces also got special roof paints so those are perfect for roof parts. part 2 you can check here: In order to use these paints you must use the mo...554 downloadsupdated 3 y ago
- Bear Bundleby MjmannellaThree new bears, plus a variety of terrarium/enclosure pieces to accommodate them! Requires Freshwater Frenzy, Deep Freeze, and Megaterrarium. Credits: Tim TC for models and base textures Blue Fang Games for textures Note: Air Conditioners currently have no function, but you're free to include th...554 downloadsupdated 3 y ago
- Coral Pack 3by FlishsterAdds a small selection of new coral species to your game. :)553 downloadsupdated 6 mo ago
- GuestAndStaffby stlnegril9This mod adds a custom guest - a Hooligan, and a custom staff - a Diver.543 downloadsupdated 7 y ago
- Mesozoic Madnessby DrillHouse recreated creatures from the age of the dinosaurs! A short campaign featuring creatures from Project Artificialis. Important: This mod requires the following mods: Donut Viewing Platform Tank Donut Viewing Platform Tank - 3 Wide Deep Beach Tank Collection Diverse Diets Raised Beach Tanks Be...539 downloadsupdated 3 y ago
- Simple English Renamesby Irritating FishThis is a simple mod that changes the names of certain base game animals to their more specific or widely used names, based on a species list posted by the developer. This mod will only work if your game is in English. The following name changes have been made: Blackbar Soldier = Scarlet Soldierf...536 downloadsupdated 3 y ago
- Khaydar's Bazaar- Mini-me in a submarineby KhaydarA mini-me inside a submarine, made for April fools536 downloadsupdated 6 y ago
- More Side Objectivesby LubsoilMod adds new six new Side Objectives to the game. List of side objectives: - Tourism board: Guest's maintaince - Decorator challenge: Massage Chair - Gifts: Guidebooks - Gifts: Shark Hat - Gifts: Balloons - Gifts: T-Shirt534 downloadsupdated 8 mo ago
- BIG: Asian Longhorn Beetle Packby 76561199184342361Adds 4 new longhorns to the game, all from Asia. -Mango Longhorn Beetle (Batocera rubus) -Citrus Longhorn Beetle (Anoplophora chinensis) -Lebbek Borer (Xystrocera globosa) -Bamboo Tiger Longhorn (Chlorophorus annularis) Requires Megaterrarium and Diverse Diets.532 downloadsupdated 16 mo ago
- Nerdy Penguin Aquatics - Faux Coral Scenery Packby RealNerdguinAdds several faux corals Models by Synty.524 downloadsupdated 3 y ago
- B.A.D. Laboratories Stethacanthusby nightmare6445Here at B.A.D. Labs we are pleased to announce that our de-extinction department has successfully resurrected the Stethacanthus. Probably one of the strangest looking sharks to ever exist, the dorsal fin on Stethacanthus was shaped like an anvil. It is thought that Stethacanthus dwelled in coasta...521 downloadsupdated 3 y ago
- B.A.D. Laboratories Pteraspisby nightmare6445Here at B.A.D. Labs we are pleased to announce that our de-extinction department has successfully resurrected the Pteraspis. This small jawless fish has armor covering the front portion of its body. Even though this fish doesn't have paired fins it is still a powerful swimmer. The spine on the to...518 downloadsupdated 3 y ago
- Coral Pack 2by FlishsterAdds a small selection of new coral species to your game. :)518 downloadsupdated 6 mo ago
- Nerdy Penguin Aquatics - Lesser Known Sharks IIby RealNerdguinThis mod adds three lesser known new Sharks, the Blind Shark, the Bahamas Saw Shark, and the Yellowspotted Catshark. Thanks to fubber for the sawshark model.516 downloadsupdated 9 mo ago
- Khaydar's Bazaar - Staff overhaul and optimizationby KhaydarMade as an April Fools mod, this mod replaces aquarium staff with MONKE.511 downloadsupdated 22 mo ago
- Fish Bowlby Irritating FishThe classic, a fish bowl. (This is a joke) :P493 downloadsupdated 6 y ago
- Sessile Invertebrates Pack 2by FlishsterAdds a handful of sessile invertebrates for your aquarium!492 downloadsupdated 7 mo ago
- Nerdy Penguin Aquatics - Spooky Scenery Packby RealNerdguinAdds several spooky themed items. Happy Halloween! Models by Synty.486 downloadsupdated 3 y ago
- B.A.D. Laboratories Cladoselacheby nightmare6445Here at B.A.D. Labs we are pleased to announce that our de-extinction department has successfully resurrected the Cladoselache. Cladoselache is often hailed as the first true shark form to enter the fossil record. This sharks body is streamlined to be a very fast predator. Its teeth is very diffe...486 downloadsupdated 3 y ago
- The Fish Collector - Unstable Creaturesby 76561199033220748Don't install this. I REPEAT. DON'T INSTALL THIS. You have been warned. The creatures in this pack are incredibly unstable a- .481 downloadsupdated 6 y ago
- MEGA MICROBES - Euglenaby Irritating FishNew scientific research has blown up a microscopic protist to observable size! View the wonderful plant-like algae, Euglena, in your aquariums now!481 downloadsupdated 6 y ago
1.3k mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.