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
- Phanerium - Prionosuchusby SynchroLightThis mod adds the colossal marine amphibian Prionosuchus plummeri to your Phanerium! To play with this mod you should have Freshwater Frenzy purchased and installed with your game. We would like to thank user Joseba who commissioned this mod allowing us to restore this magnificent animal!2.3k downloadsupdated 5 y ago
- Khaydar's Bazaar - Pelagic Thresherby KhaydarAdds the Pelagic thresher (Alopias pelagicus) to your game. Breedable and comes with the rare irridescent morph. Update: Fixed an issue preventing hybrids to appear. Now the shark has a pup stage2.3k downloadsupdated 3 y ago
- Phanerium - Bungartiusby SynchroLightAdds the Tuna-sized Placoderm, Bungartius, to your game. This animal is unlocked through Science research at Level 5. This mod was commissioned by Medusa53! We would like to thank Tyler Greenfield for his advice on what to do for the postcrania of this strange animal.2.2k downloadsupdated 6 y ago
- BLUE - Semipalmated Ploverby Irritating FishA cute and tiny plover, the Semipalmated Plover(Charadrius semipalmatus) makes it's way into your aquariums!2.2k downloadsupdated 5 y ago
- Khaydar's Bazaar - Common Thresherby KhaydarRemake of the Common thresher (Alopias Vulpinus); - New improved model and textures - Shiny new animations - Statistic balancing - Fixed typo And yes it uses the tail to feed... Enjoy2.2k downloadsupdated 3 y ago
- Pelagica - African Freshwater Pipefishby 1electronA freshwater fish. Obviously requires FF DLC. Will be breedable but that is not currently implemented.2.2k downloadsupdated 5 y ago
- Commerson's Dolphinby FlishsterAdds the Commerson's Dolphin to your game!2.2k downloadsupdated 6 y ago
- Phanerium - Jaekelopterus rhenaniaeby SynchroLightThis mod will add the giant Eurypterid, Jaekelopterus rhenaniae, to your game. Requires Megaquarium and the Freshwater Frenzy DLC Pack to play.2.2k downloadsupdated 6 y ago
- Pelagica - Eastern Red Octopusby 1electronMore commonly known as the East Pacific Red Octopus, this cephalopod is an interesting attraction in aquariums due to its high level of activity and personality.2.2k downloadsupdated 6 y ago
- Zebra Seahorseby ManoZika7Adds the australian zebra seahorse to the game. Also includes the "fake gorgonian" plant, in case you want to keep them along other seahorses2.2k downloadsupdated 6 y ago
- Khaydar's Bazaar - Longfin makoby KhaydarRemake of the Longfin mako. Unlocked at rank 122.2k downloadsupdated 3 y ago
- Invertimaniaby 76561198880010479Imagine having a spine? Having bones? Disgusting. Get outta here with your filthy hollow dorsal nerve cord. Reject vertebraticity and return to the blessed, amorphous, boneless form. This pack includes: Beautiful Feather Star Bennett's Bushy Feather Star Blue Linckia Star Brown Comb Jelly Crocea...2.2k downloadsupdated 8 mo ago
- South American Cichlid Packby FlishsterAdds three new South American cichlids to your game!2.2k downloadsupdated 8 mo ago
- God filterby 76561198367113613This mod adds powerful versions of tank equipment. It includes God versions with 900 stat and 99% reliability of the following: - Pump - Triple Filter - Heater - Chiller - UV Sterilizer - Skimmer - Nitrate Reactor It also includes a 99% reliable version of: - Auto-Feeder Update: This mod previous...2.2k downloadsupdated 6 y ago
- Malawi Cichlid Packby FlishsterAdds a whole host of Malawi species to your game.2.2k downloadsupdated 8 mo ago
- Pelagica - Rajella Skate Collectionby 1electronAdds a few deep-dwelling skates of the genus Rajella. This mod includes the Bigthorn Skate, Deep-Water Skate, Bigelow's Skate, Munchkin Skate, Ghost Skate, Purplebelly Skate, Round Skate, Mid-Atlantic Skate, Leopard Skate, Sailray, Blackish Skate, and Sparsely-Thorned Skate.2.2k downloadsupdated 6 y ago
- Gulf Stream Aquaria - North Sea Gobiesby RappyAdds the black goby (Gobius niger) and two-spotted goby (Pomatoschistus flavescens) to your game. The two-spotted goby unlocks at Rank 5, while the black goby unlocks at Rank 7. Part of the North and Baltic Seas modding challenge. Credit to grossebertha for the base models utilized in this mod.2.2k downloadsupdated 3 y ago
- Rockfish Trio Pack 2by grosseberthaAdd 3 Rockfish to your game, the Tiger Rockfish (Sebastes nigrocinctus), the Yellowtail Rockfish (Sebastes flavidus) and the Gopher Rockfish (Sebastes carnatus).2.2k downloadsupdated 5 y ago
- BLUE - Grey Heronby Irritating FishA common sight in Europe and Asia, the Grey Heron (Ardea cinerea) wades it's way into your aquariums at rank 8!2.2k downloadsupdated 5 y ago
- BLUE - Harlequin Duckby Irritating FishOne of the most vivid and unique species of duck, the Harlequin Duck (Histrionicus histrionicus), waddles into your aquariums at rank 9!2.2k downloadsupdated 3 y ago
- Cherax Pulcherby Sara The AlienAdds the colorful and rare Cherax Pulcher to your game, rarely known as Thunderbolt Crayfish. Credits to Flishster for the original signal crayfish model, and Uzag for the original european crayfish mod itself and all the help he's given to me! This community is so nice!2.2k downloadsupdated 6 y ago
- Leatherback Sea Turtleby nightmare6445Add the Leatherback Sea Turtle to your game. Can't take credit for the models I got them from zoo tycoon 2 and edited and animated them for Megaquarium.2.2k downloadsupdated 4 y ago
- BLUE - Around Africaby Irritating FishEnjoy some new fish from around the coasts of Africa in this unique pack! African Wedgefish (Rhynchobatus luebberti) Blackstripe Cardinalfish (Ostorhinchus nigrofasciatus) Cape Elephantfish (Callorhinchus capensis) Peacock Blenny (Salaria pavo) Zebra Tilefish (Branchiostegus semifaciatus)2.2k downloadsupdated 5 y ago
- Phanerium - Aquaticby SynchroLightPhanerium Pack 1 adds seven new aquatic animals from the geological past to your aquarium, as well as new gift shop items to sell to your visitors. Acrophyseter deinodon A macroraptorial sperm whale from the Miocene of Peru, its shortened snout and large robust teeth were perfectly adapted for pr...2.2k downloadsupdated 4 y ago
- Podium Tank (Fixed)by JuniferBerriesThis mod adds the Podium Tank to your game, a very small tank for displaying 1 to 2 small fish. It is unlocked at Level 1. (Original Creator: ToxoHP)2.2k downloadsupdated 5 y ago
- Japanese Sealife Pack - Reduxby 76561198880010479Adds 47 species from the seas of the Japanese archipelago to your game! This mod includes: Asian Shore Crab Black Scraper Blue Bat Star Bluespotted Trunkfish East Asian Common Octopus Fan-belly Leatherjacket Fat Greenling Gnomefish Goldeye Rockfish Highfin Bigeye Dragonet Izu Catshark Japanese Ar...2.2k downloadsupdated 13 mo ago
- Swimming Crab Packby 76561199057124724Adds 11 species of swimming crab (Portunidae) to your game. Contents: Three-spot Swimming Crab (Portunus sanguinolentus) Mediterranean Green Crab (Carcinus aestuarii) Crucifix Crab (Charybdis feriata) Sargassum Crab (Portunus sayi) Speckled Swimming Crab (Arenaeus cribrarius) Orange Mud Crab (Scy...2.2k downloadsupdated 5 y ago
- BLUE - Winter Skateby Irritating FishA small skate of the Eastern US coast, welcome the Winter Skate (Leucoraja ocellata) to your aquarium collections.2.2k downloadsupdated 5 y ago
- Khaydar's Bazaar - Anniversary Statueby KhaydarHappy Anniversary Megaquarium! Made as submission to the Anniversary week 2 challenge. #TwoYearAnniversary2.2k downloadsupdated 6 y ago
- Yellow Piranhaby RappyAdds the yellow piranha (Serrasalmus maculatus) to your game. This fish unlocks at Rank 8.2.2k downloadsupdated 5 y ago
- Coffin Rayby Irritating FishAdd the goofy looking Coffin Ray (Hypnos monopterygius) to your Austrailian collection!2.2k downloadsupdated 6 y ago
- Pelagica - Coral Gobiesby 1electronAdds 4 lovely species of coral gobies of the Gobiodon genus. The species provided are: G. okinawae (Okinawa coral goby), G. histrio (broadbarred coral goby), G. ceramensis (black coral goby), and G. citrinus (citron coral goby). Some of the species are too small to be size 2 on their own so they...2.2k downloadsupdated 6 y ago
- Gulf Stream Aquaria - Ruby Serpent Starby RappyAdds the colorful ruby serpent star (Ophioderma rubicundum), a brittle star native to the Caribbean and Gulf of Mexico, to your aquarium. This echinoderm unlocks at Rank 7.2.1k downloadsupdated 3 y ago
- Zebra Turkeyfishby Irritating FishEnjoy the venomous zebra turkeyfish (Dendrochirus zebra) in your aquarium!2.1k downloadsupdated 6 y ago
- Morwong Trio Pack 1by grosseberthaAdd 3 new Morwong to your game, the Red Morwong (Cheilodactylus fuscus), the Crested Morwong (Cheilodactylus vestitus) and the Spottedtail Morwong (Cheilodactylus zonatus).2.1k downloadsupdated 5 y ago
- Shortfin Makoby MjmannellaShoftfin makos have a terible reputtion in captivity. Does your aquarium have what it takes to house this endangered species? Submission for the Discord Arabian Sea Challenge.2.1k downloadsupdated 3 y ago
- Nile Basin Trioby RappyAs the longest river in the world, the grandiose Nile has an equally vast amount of wildlife. This pack contains three fish from this region: -Featherfin Squeaker (Synodontis eupterus); unlocks at Rank 6 -Uganda Nothobranch (Nothobranchius ugandensis); unlocks at Rank 6 -Wahrindi (Synodontis scha...2.1k downloadsupdated 5 y ago
- Lake Eacham Rainbowfishby 76561198880010479Adds the Lake Eacham Rainbowfish to your game! This species comes from North Queensland in Australia and was believed to be extinct until it was rediscovered in private collections! Breeding programs were successful and the Lake Eacham Rainbowfish was reintroduced to the wild. This mod is my subm...2.1k downloadsupdated 3 y ago
- Khaydar's Bazaar - Extra Vanilla Equipmentby KhaydarFinally! Vanilla Friendly filters, both aesthetically and balance wise. 7 new filters including: - A Mega Skimmer to satisfy everyone's perfectionism issues. The 4 different filtrations are now perfecly balanced, as all things should be. - Coldwater combi filters. Won't someone think of the poor...2.1k downloadsupdated 3 y ago
- Papua New Guinea Pack (Flish)by FlishsterAdds fish from Papua New Guinea to your game. :)2.1k downloadsupdated 8 mo ago
- Victorian Cichlid Packby FlishsterAdds several Victorian cichlids to your game! These rare fish are all but extinct in Lake Victoria itself, but will help give your aquarium some smaller cichlids with dazzling colors. :)2.1k downloadsupdated 8 mo ago
- Pelagica - Poison Dart Frogs Iby 1electronThis is the first of several mods which will add various poison dart frog species for your terrariums. This mod includes species from the genus Dendrobates: the Green and Black Dart Frog, Bumblebee Dart Frog, Dyeing Poison Dart Frog, and Yellow-Striped Dart Frog. Some frogs are fully breedable wi...2.1k downloadsupdated 5 y ago
- B.A.D. Laboratories Leedsichthysby nightmare6445Here at B.A.D. Labs we are pleased to announce that our de-extinction department has successfully resurrected what may be the world's largest fish. We now offer the Leedsichthys for purchase to display in your zoos and aquariums. Don't wory about the safety of your staff caring for this prehistor...2.1k downloadsupdated 3 y ago
- Gulf Stream Aquaria - Orange Claw Hermit Crabby RappyThis mod brings the orange claw hermit crab (Calcinus tibicen) to your aquarium. This popular hermit crab is sure to excite your guests with its bright colors. Unlocks at Rank 3. Part of the Gulf of Mexico modding challenge.2.1k downloadsupdated 3 y ago
- Butterfly Peacock Bassby RappyAdds the butterfly peacock bass (Cichla ocellaris) to your game. A voracious and messy eater with a bad temper, this colorful cichlid requires a large aquarium – even larger if you want to attempt to keep multiple individuals – with sturdy tankmates. Unlocks at Rank 9. Credit to grossbertha for t...2.1k downloadsupdated 5 y ago
- Khaydar's Bazaar - US challenge: Texas cichlidby KhaydarA large cichlid from the US. Breedable and requires FF. Made for the discord US challenge2.1k downloadsupdated 6 y ago
- Megaterrarium extra inverts 2by ManoZika7Adds some more invertebrates to Megaterrarium: Cinnabar moth Fiddler beetle Figeater beetle Ghost slug Giant desert centipede Indian tiger centipede Madagascar fire millipede Onychocerus albitarsis Peruvian firestick Polynesian tree snail Red milkweed beetle Rosalia longicorn Wheel spider Thanks...2.1k downloadsupdated 6 y ago
- BLUE - Assorted Reef Speciesby Irritating FishThe Blue Worldwide Aquatic Shops are here to supply your aquariums with some fun new reef fish! Some may look similar to other stockings, but we assure you these are new species! Here is what we have in today's shipment. Pennant Coralfish (Heniochus acuminatus) Samurai Squirrelfish (Sargocentron...2.1k 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.