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
- Icefish Packby 76561198880010479Adds seven species of Antarctic notothenioids to your game! This mod includes: Bald Notothen Charcot's Dragonfish Emerald Notothen Humpback Notothen Longfin Icedevil Mackerel Icefish Ocellated Icefish Additionally, this mod moves the Antarctic Silverfish and Blackfin Icefish from Deep Freeze into...1.2k downloadsupdated 3 y ago
- Angelfish Trio Pack 3by grosseberthaAdd 3 new Angelfish to your game, the Bluestriped Angelfish (Chaetodontoplus septentrionalis), the Yellow Ears Angelfish (Cpolemichthys xanthotis) and the Abe's Pygmy Angelfish (Centropyge abei).1.2k downloadsupdated 19 mo ago
- Emperor Angelfish Juvenileby 76561199056670115Pomacanthus imperator or also known as the Emperor angelfish now in juvenile form.1.2k downloadsupdated 5 y ago
- Triggerfish Industries - Bottlenose Dolphinsby 76561199033220748Two Bottlenose species, 1 coldwater, 1 tropical. Credits to Jannick for the public domain dolphin model.1.2k downloadsupdated 6 y ago
- More Realistic AC Giantsby 76561199056670115This mod will modify the Napoleon wrasse, Largetooth sawfish and Ocean Sunfish in the Architect Collection DLC -Napoleon wrasse size has been reduced to 60, have appetite for smaller preys, required water quality of 70 and more expensive -Largetooth sawfish size has been increased to 75, have app...1.2k downloadsupdated 5 y ago
- Australian Freshwater Life Bonus Pack - The Invadersby 76561198880010479Adds 9 foreign freshwater species that have had a disastrous effects after being introduced to Australia. This pack includes: - Brown Trout (Salmo trutta) - Cane Toad tadpole (Rhinella marina) - European Carp (Cyprinus carpio) - Giant Salvinia (Salvinia molesta) - Green Swordtail (Xiphophorus hel...1.2k downloadsupdated 20 mo ago
- Lionfish Trio Packby 76561198880010479Adds three new lionfish species to your game: Gurnard Lionfish (Parapterois heterura) Russell's Lionfish (Pterois russelli) Twinspot Lionfish (Nemapterois biocellatus)1.2k downloadsupdated 22 mo ago
- Pelagica - Return to the Poles - Antarctic Triplefinby 1electronAdds the Antarctic Triplefin (Helcogrammoides antarcticus), which is one of the only polar blennies, to your game. This is functionally part of a remaster of the old 'Polar Plunge' mods, except this fish was not part of the original series.1.2k downloadsupdated 5 y ago
- Polar_Mega_L_Tunnel_Tankby stlnegril9This is a Polar Dome with L-shaped Tunnel in the Mega Tank1.2k downloadsupdated 3 y ago
- Triggerfish Industries - Freshwater Angelfish Expansion Packby 76561199033220748Adds 3 new Freshwater Angelfish Varieties to the game. More coming soon.1.2k downloadsupdated 6 y ago
- East Pacific Reef Fish Packby 76561198880010479Add four species from the tropical reefs of the East Pacific to your game This mod includes: Clipperton Angelfish (Holacanthus limbaughi) Cortez Rainbow Wrasse (Thalassoma lucasanum) - male and female Giant Hawkfish (Cirrhitis rivulatus) Harlequin Hogfish (Bodianus eclancheri)1.2k downloadsupdated 23 mo ago
- Clown Tangby 76561199056670115(Acanthurus lineatus) other common names include blue banded surgeonfish, blue-lined surgeonfish, clown surgeonfish, pyjama tang, striped surgeonfish, and zebra surgeonfish. Big thank you to IrritatingFish and Timmiegun for helping making my first mod and making it possible.1.2k downloadsupdated 5 y ago
- Gulf Stream Aquaria - Northern Sennetby RappyAdds the northern sennet (Sphyraena borealis), a widely-ranging small Atlantic barracuda, to your aquariums. This fish unlocks at Rank 6. Credit to IrritatingFish for the model used.1.2k downloadsupdated 3 y ago
- Cretaceous Africa Packby 76561199057124724Adds some animals from the Cretaceous period of Africa. Contents: Giant Mawsonia (Mawsonia gigas) Group: Kem Kem Group Bartschichthys (Bartschichthys sp.) Group: Kem Kem Group Arganodus (Arganodus tiguidiensis) Group: Kem Kem Group Beelzebufo (Beelzebufo ampinga) Formation: Maevarano Formation An...1.2k downloadsupdated 5 y ago
- Palaeoquarium - Eolactoria sorbiniiby WaterWitchAdds the Extinct Italian Boxfish, Eolactoria sorbinii, to your game. This early boxfish from Monte Bolca is notible for its small size and extremely long horns. This fish is researchable at Rank 4 through Science.1.2k downloadsupdated 6 y ago
- Balvaro store Freshwater pack 4(Chromaphyosemion)by balvaro21The following species are part of the genus Chromaphyosemion or Aphyosemion which are non-annual killifish.They are native from West Africa and countries like Nigeria,Cameroon or Uganda.The presence of different color patterns variation based on specific localities it is pretty common.Apart from...1.2k downloadsupdated 6 y ago
- Khaydar's Bazaar - Loggerhead Turtleby KhaydarAdds the loggerhead (Caretta caretta) to your game. Unlocked at rank 11 Requires nothing else to work, just sub and play.1.2k downloadsupdated 18 mo ago
- Khaydar's Bazaar - Goblin Sharkby KhaydarAdds the famous goblin shark (Mitsukurina owstoni) to your game, unlocked at rank 12. Needs diverse diets for those that don't own Architect Collection, otherwise it is not needed.1.2k downloadsupdated 3 y ago
- Puffin Packby 76561198880010479Adds the Horned Puffin and Tufted Puffin to your game.1.2k downloadsupdated 20 mo ago
- All-new Pacu Texture Modby AnubiteA new texture for the vanilla pacu. Freshwater Frenzy Required1.2k downloadsupdated 5 y ago
- Sea Needle Reskinby 76561199056670115This mod will modify the Sea Needle texture from the base game! This idea is brought to you by IrritatingFish.1.2k downloadsupdated 3 y ago
- Frilled Giant Pacific Octopusby 76561198880010479Adds the Frilled Giant Pacific Octopus to your game! This newly-discovered species from Alaska was not realised to be distinct from the Giant Pacific Octopus until recently! It's so new that it doesn't have an official scientific name yet.1.2k downloadsupdated 5 y ago
- Sandstone Paintby BosjesmanThis mod will add a new paint, the sandstone paint! Credits: ToxoHP for the textures.1.2k downloadsupdated 7 y ago
- Pride Sharksby RealNerdguinThis mod adds Pride Shark plushies. You are loved! Models by synty.1.2k downloadsupdated 3 y ago
- Small Sandeelby 76561199056670115Ammodytes tobianus or also known as Sand Lance or Small Sandeel. Biggest of thanks to IrritatingFish for the model.1.2k downloadsupdated 22 mo ago
- Fan Musselby 76561199057124724Adds the Fan Mussel to your game! Content: Fan Mussel (Atrina fragilis)1.2k downloadsupdated 5 y ago
- European Tadpole Shrimpby 76561199057124724Adds the European Tadpole Shrimp to your game! Content: European Tadpole Shrimp (Triops cancriformis)1.2k downloadsupdated 5 y ago
- BLUE - Redtail Catfish Remakeby Irritating FishRemakes the redtail catfish in my style. This model was commissioned by Buffzoo.1.2k downloadsupdated 3 y ago
- Wrasse Packby 76561198880010479The wrasse family Labridae is one of the most diverse and fascinating fish families - from changing sex, creating mucus cocoons, to tool use, their biology never ceases to amaze. Explore the remarkable diversity of these fishes with these nine species. This mod includes: Pacific Bird Wrasse Blues...1.2k downloadsupdated 3 y ago
- Freshwater Mountsby 76561198842575853Introducing mounting behavior into Freshwater Frenzy! All base game bogwood scenery now have mounting positions. Original java fern object is transformed into just the log without plants, and the plant itself is made separately as mountable object. Also adds new plants: stringy moss, christmas mo...1.2k downloadsupdated 8 mo ago
- Flish Urchin Packby FlishsterAdds a host of urchins to your game!1.2k downloadsupdated 2 y ago
- Palaelodus ambiguusby Irritating FishAn interesting relative to flamingos and grebes, the prehistoric Palaelodus ambiguus joins your prehistoric aquariums! Unlocked at rank 8, this so called swimming flamingo will be a unique addition to any Cenozoic paleo-quarium.1.2k downloadsupdated 5 y ago
- Thailand Water Snake Packby 76561199056670115Thailand Water Snake Pack including -Fordonia leucobalia, also known as White-bellied mangrove snake or Crab-eating water snake (งูปลาหัวเทา) -Hypsiscopus plumbea, also known as Yellow-bellied water snake, Rice paddy snake or Plumbeous water snake (งูปลิง) -Enhydris enhydris, also known as Rainbo...1.2k downloadsupdated 5 y ago
- Blobfishby 76561199057124724Adds the Blobfish to your game. Content: Blobfish (Psychrolutes marcidus)1.2k downloadsupdated 5 y ago
- Gulf Stream Aquaria - Mangrove Red Snapperby RappyThis mod adds the mangrove red snapper (Lutjanus argentimaculatus) into your aquariums. Unlocks at Rank 5.1.2k downloadsupdated 3 y ago
- Pelagica - Whitemargin Unicornfishby 1electronAdds the Whitemargin Unicornfish (Naso annulatus), the largest member of the surgeonfish family, to your game.1.2k downloadsupdated 4 y ago
- Mill That Noodleby 76561199056670115This mod will modify the Zebra Moray Eel and Green Moray Eel milling animation from the base game! This idea brought is to you by IrritatingFish.1.2k downloadsupdated 4 y ago
- Khaydar's Bazaar- Rodents of Unusual Size Packby KhaydarAdds 4 semi-aquatic rodents of unusual large size to your game. Includes: Capybara (Hydrochoerus hydrochaeris) Desmarest's Hutia (Capromys pilorides) Eurasian Beaver (Castor fiber) Nutria (Myocastor coypus) The mod also adds a scenery den for nutria to use. (You'll need a beach tank with placeabl...1.1k downloadsupdated 2 y ago
- Corinthian Paintby SvealynCorinthian styled wall, floor and tank backdrop1.1k downloadsupdated 7 y ago
- RickReptile Coral Pack 2by rickreptileReptile Productions presents Coral Pack 2. A pack featuring 20+ new scenery corals, allowing you to create the ultimate coral reefs. Modders note: By downloading/using this mod you agree to not alter/translate/re-release this mod without written permission of the mod creator.1.1k downloadsupdated 3 y ago
- Extinct Jawless Fish Packby 76561199057124724Adds some extinct species of jawless fish to your game. Contents: Red Furcacauda (Furcacauda heintzae) Blue Furcacauda (Furcacauda fredholmae) Astraspis (Astraspis desiderata) Arandaspis (Arandaspis prionotolepis)1.1k downloadsupdated 5 y ago
- The Fish Collector - Prehistoric 'Jelllyfish'by 76561199033220748Go back in time and witness the beauty of these glorious Jellies. Credits to Happy Birthdays for inspiring 3 of the Patterns.1.1k downloadsupdated 6 y ago
- Khaydar's Bazaar - Spotted Wobbegongby KhaydarAdds the Spotted Wobbegong (Orectolobus maculatus) at rank 11. A bigger and meaner version of the already big and mean wobbegong. Requirements: none, works with base game1.1k downloadsupdated 2 y ago
- RickReptile distance feeder tanksby rickreptileThis pack features open designed tanks that your staff can feed from a distance. Using a special feeding box your staff can access it, you can use the space between however you want. there are sets, 1 is designed as the depth as the deep wall tanks. The other set has the same height but -1 depth...1.1k downloadsupdated 3 y ago
- RickReptile Elevated tanksby rickreptileRickReptile presents Elevated Tanks. These tanks can be placed on top of each other and in order to view them properly, you will need to use bridges. Use this tutorial in order to use them properly: To utilize it well in a building, use my building kit: Credit to Flishster to allow his Raised tan...1.1k downloadsupdated 20 mo ago
- Chinese translation Ultimate Editionby 76561199090099927A brand new Chinese translation mod, and the last language translation mod that is still being updated. This mod is only valid for the Chinese version of the game, and has no effect on other language versions. This mod doesn't contain any modder's original mods, it's just a simple language-to-tex...1.1k downloadsupdated 20 d ago
- Triggerfish Industries - Reeffish Giga Packby 76561199033220748Adds a ton of new reeffish to the game. Thanks to Uzag and IrritatingFish in the discord for the textures and models for the Butterflyfish. Mod is discontinued.1.1k downloadsupdated 6 y ago
- RickReptile Desert Building packby rickreptileRickReptile presents: Desert building pack. A massive scenery expansion featuring tons of scenery to create your own desert village/castle/city. it has themed tanks. new couches, planters and much more. perfect mod in combination with: all the floor paints are adjusted to use the improved UV edit...1.1k downloadsupdated 3 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.