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
- Triggerfish Industries - Invertebrate 5 Packby 76561199033220748Adds 2 snails and 3 Cherry Shrimp (Neocardinia Davidii) to the game. Have fun discovering all the colors and patterns!1.0k downloadsupdated 6 y ago
- Jurassic Germany Packby 76561199057124724This mod adds some animals from the Jurassic period of Germany to your game. Contents: Eryon (Eryon cuvieri) Palaeomedusa (Palaeomedusa testa) Crossorhinus (Crossorhinus jurassicus) Aspidorhynchus (Aspidorhynchus acutirostris) Ophiopsis (Ophiopsis muensteri) Hypsocormus (Hypsocormus insignis) Pro...1.0k downloadsupdated 5 y ago
- Indian Horseshoe Crabby 76561199057124724This mod adds the Indian Horseshoe Crab to your game. Content: Indian Horseshoe Crab (Tachypleus gigas)1.0k downloadsupdated 5 y ago
- Kelenken guillermoiby Irritating FishThe largest of the terror birds, Kelenken guillermoi, joins your prehistoric rosters!1.0k downloadsupdated 4 y ago
- Khaydar's Bazaar - Twin Sails Salpby KhaydarAdds the largest living species of Salp, the Twin Sailed Salp tp your game. Yes the scientific name is cool, I just can't write it here thanks to Steam bots.1.0k downloadsupdated 3 y ago
- Khaydar's Bazaar - The elephant in the roomby KhaydarYes it's not an elephant technically, but it serves the joke. This mod adds Deinotherium giganteum as an animal for your zoos, research facilities, aquariums, whatever. I forgot what the game was about. Unlocked at lv 12 with science research instead of ecology, just like the Artificialis collect...1.0k downloadsupdated 5 y ago
- Alligator Snapping Turtleby FlishsterAdds the Alligator snapping turtle to your game. :)1.0k downloadsupdated 3 y ago
- Jobfish Packby 76561199056670115Jobfish Pack including -Pristipomoides filamentosus, also known as Rosy snapper, Bluespot jobfish, Crimson snapper, King emperor, King snapper, Rosy jobfish or Crimson jobfish -Pristipomoides auricilla, also known as Yellow flower snapper or Goldflag snapper -Aprion virescens, also known as Gray...1.0k downloadsupdated 2 y ago
- Thailand FF Variety Pack IIby 76561199056670115Thailand Variety Pack II including -Aplocheilus panchax, also known as The Blue panchax or Whitespot(ปลาหัวตะกั่ว หรือ ปลาหัวเงิน หรือ ปลาหัวงอน)**Include 4 color 3 obtain via breeding -Brachygobius xanthomelas, also known as (True) Freshwater bumblebee goby(บู่เสือ) -Barbonymus gonionotus, also...991 downloadsupdated 5 y ago
- Plenty O' Paint Packby 76561199056670115Add 6 new Minimal style paint and 5 new Sleek style paint into your game. This is a collaboration with Timmiegun.990 downloadsupdated 5 y ago
- Invertechilliant Collectionby FlishsterWhy stop at the tropics? Invertechilliant Collection adds 15 new coldwater invertebrates for your aquariums. Also makes several coldwater species able to eat bivalves, gastropods, sea squirts, and tubeworms. Rank 5: California Sea Hare Club-Tipped Anemone Rank 6: Pacific Sand Dollar Kellet's Whel...988 downloadsupdated 7 mo ago
- Yeetus Collections - Reef Imports IIby 76561199033220748Adds a ton of new reeffish to the game. Adds: - Atlantic Butterflyfish - Black Wrasse - Brazilian Flameback Angelfish - Canarytop Wrasse - Cherubfish - Clipperton Angelfish - Corazon's Damselfish - Dothead Rockcod - Finescale Dottyback - Greenhead Wrasse (Female) - Honeyhead Damselfish - Joculato...987 downloadsupdated 5 y ago
- FF Characin Packby 76561199056670115Characin Pack including -Hyphessobrycon herbertaxelrodi, also known as Black neon tetra -Nematobrycon palmeri, also known as Emperor tetra -Gasteropelecus sternicla, also known as Common hatchetfish, River hatchetfish and Silver hatchetfish.987 downloadsupdated 5 y ago
- RickReptile Desert nature packby rickreptileRickReptile present the Desert nature pack. Featuring palm trees of various shapes and sizes. several new plants and plenty of rocks, from small rubble to background pieces to very large centerpieces. perfect mod in combination with: Modders note: the 2 corner background rock pieces are not on th...986 downloadsupdated 3 y ago
- The Fish Collector - Meyer's Butterflyfish Variety packby 76561199033220748This species pack includes 8 Meyer's Butterflyfish variants imported from Aquarictanktus: Please enjoy, we are planning to increase the color range.985 downloadsupdated 6 y ago
- Cortez Angelfish Packby 76561199056670115Pomacanthus zonipectus or also known as the Cortez angelfish. Including both the adult and juvenile form in one pack.985 downloadsupdated 5 y ago
- Modded Category Ordering Patchby Orangest FocksHardcodes modded livestock, scenery, tank, infrastructure, and equipment categories to show up in a reasonably organized order, rather than at the bottom of the list.984 downloadsupdated 8 mo ago
- BLUE - Water Striderby Irritating FishEnrich your aquarium guests with the water strider (Aquarius conformis)! This small critter will sit on the surface of your tanks.983 downloadsupdated 3 y ago
- RickReptile demoiselle pack 1by rickreptileA pack featuring 12 new species: Goldtail Demoiselle Giti Damselfish Starck's Demoiselle Canary Demoiselle Sulphur Demoiselle Sinclair's Demoiselle Springers Demoiselle Arnaz's Demoiselle Grey Demoiselle Southseas Devil Demoiselle Imitator Demoiselle Tahitian reef Demoiselle Modders note: By down...979 downloadsupdated 3 y ago
- Thailand Marine Variety Pack 1by 76561199056670115Thailand Marine Variety Pack 1 including -Paracirrhites forsteri, also known as Blackside Hawkfish,Freckled hawkfish or Forster's hawkfish(ปลาเหยี่ยวดำด้าน) -Chaetodon octofasciatus, also known as Eight banded butterflyfish,Eightband butterflyfish or Eight-striped butterflyfish(ปลากบหลังลายเฉียง)...978 downloadsupdated 5 y ago
- Pelagica - Giant Damselfishby 1electronI know that I have released a large number of mods recently, but have one more. This mod adds the Giant Damselfish (Microspathodon dorsalis) to your game.974 downloadsupdated 3 y ago
- Ediacaran Biotaby 76561199057124724Adds some possible animals and sceneries part of the Ediacaran biota, which begins 635 millions years ago and ends 541 millions years ago. Contents: Kimberella (Kimberella quadrata) Parvancorina (Parvancorina minchami) Dickinsonia (Dickinsonia tenuis) Spriggina (Spriggina floundersi) Charnia (Cha...970 downloadsupdated 5 y ago
- RickReptile demoiselle pack 2by rickreptileA pack featuring 14 new species: Blue Chromis Blue Green Damsel Chocolate Dip Chromis Yellowtail Reef Fish Cross's Damsel Green Chromis Grey Damsel Lemon Damsel Philippine Damsel Yellowhead Damselfish Bicolor Chromis Silverstripe Chromis Spiny Chromis White Spotted Devil Modders note: By download...968 downloadsupdated 3 y ago
- Thailand FF Variety Pack IIIby 76561199056670115Thailand Variety Pack III including -Oreochromis niloticus, also known as Nile tilapia(ปลานิล) -Probarbus jullieni, also known as Jullien's golden carp or Seven stripped carp(ปลายี่สกไทย) -Trichopodus pectoralis, also known as Snakeskin gourami(ปลาสลิด) Biggest of thanks to IrritatingFish and Gro...968 downloadsupdated 5 y ago
- Aquilolamnaby Sharking AroundAquilolamna is an extinct genus of shark-like elasmobranch from the Late Cretaceous (Turonian)-aged Agua Nueva Formation of Mexico. It is currently known to contain only one species, A. milarcae, also known as the eagle shark, and it is classified in its own family Aquilolamnidae, which has been...966 downloadsupdated 4 y ago
- French Angelfish Juvenileby 76561199056670115Pomacanthus paru or also known as French angelfish now in it purest form. Idea by PolacanthusPudding.966 downloadsupdated 5 y ago
- RickReptile Mega Paint Packby rickreptileThis large mega pack, features all my paint packs into one giant megapack. Currently featuring a combined 226 paints. the packs are: building paint pack 1: building paint pack 2: natural paint pack: In order to use these paints you must use the mod: Modders note: By downloading/using this mod you...965 downloadsupdated 3 y ago
- Wrasse Pack 2by 76561198880010479Adds seven wrasse species to your game. This pack contains: Anchor Tuskfish (Choerodon anchorago) Chiseltooth Wrasse (Pseudodax moluccanus) Choat's Wrasse (Macropharyngodon choati) Floral Maori Wrasse (Cheilinus chlorourus) Lyretail Hogfish (Bodianus anthioides) Moon Wrasse (Thalassoma lunare) Si...964 downloadsupdated 21 mo ago
- Lurdusaurusby 76561199057124724Adds the Lurdusaurus to your game. Content: Lurdusaurus (Lurdusaurus arenatus) This is my entry for the discord Modding Marathon event.959 downloadsupdated 5 y ago
- Pelagica - Ochre Starfishby 1electronAdds the ochre starfish (Pisaster ochraceus), a coldwater species from the Northeast Pacific, to your game.958 downloadsupdated 3 y ago
- Atlantic Flying Gurnardby 76561198880010479Adds the strange Atlantic Flying Gurnard (Dactylopterus volitans) to your game!956 downloadsupdated 3 y ago
- Khaydar's Bazaar - Fish Bonesby KhaydarAdds the magnificent Spookichtyes halloweenicus to your game! A very low maintenance fish recommended for newcomers. - No feeding needed as it only eats human souls, luckily there is a steady supply of it in the aquarium. - Cannot be eaten - Likes rocks and "roll" - Can swim in sewage Never put i...955 downloadsupdated 5 y ago
- The Fish Collector - Dottyback pack part 1by 76561199033220748These Dottybacks are perfect. 4/4 of species caught for public aquaria passed the aquaria test.954 downloadsupdated 6 y ago
- Pelagica - Hermissenda Packby 1electronThis pack adds 3 coldwater nudibranchs of the genus Hermissenda to your game. They are difficult to keep and some of them are small enough that one animal appears as two for balancing and not having size 1 animals. Credit to Irritating Fish for the animations used. The species featured are the op...952 downloadsupdated 3 y ago
- RickReptile Rock Background 2.0by rickreptileRickReptile presents rock background 2.0. Yet another way to decorate your tanks. Each rock has it's own tab within the scenery tab. Within each tab you can find a rock and the coral's you can place on them, due to the various heights you can mix and match them. Most rocks got 1 or more open spot...952 downloadsupdated 20 mo ago
- Prehistoric Stem Tetrapodsby 76561199057124724Adds 2 new extinct species of stem tetrapods, which are animals most closely related to the crown group tetrapods. Contents: Crassigyrinus (Crassigyrinus scoticus) Tiktaalik (Tiktaalik roseae)951 downloadsupdated 5 y ago
- Noble Angelfish Packby 76561199125761610Add Queen Angelfish(Holacanthus ciliaris) and King Angelfish(Holacanthus passer) to your aquarium. Both unlock at Rank 11. Credits to grossebertha for base model.950 downloadsupdated 4 y ago
- BLUE - Orangefin Anemonefishby Irritating FishIntroduce your guests to the large anemonefish, the orangefin anemonefish (Amphiprion chrysopterus)! Unlocking at rank five, this fish is not fussy and will be a great addition to any tropical display.949 downloadsupdated 3 y ago
- RickReptile rock domesby rickreptileThis mod features new domes which uses the same rocks as Rock Backgrounds 3.0 The dome model has also been adjusted to fit better with the heights of the building kit. In total there 3 tanks, each having 5 different rock color variations. The land area of the tanks are now the same the substrate,...949 downloadsupdated 20 mo ago
- CA - Butterflyfish duo 2by ManoZika7Cinnabar Aquarism's newest mod introduces more two butterflyfish: the hot-colored eritrean butterfly and the blistering Rainford's butterfly!943 downloadsupdated 6 y ago
- Tetra 5 pack 3by grosseberthaAdd 5 tetras to your game: the Bucktooth Tetra (Exodon paradoxus), the Blueberry Tetra (Hyphessobrycon wadai), the Adonis Tetra (Lepidarchus adonis), the Yellow Lapis Tetra (hyphessobrycon cf. cyanotaenia), and the Zig Zag Tetra (Hyphessobrycon hexastichos).942 downloadsupdated 14 mo ago
- Gulf Stream Aquaria - Royal Featherbackby RappyRoll out the red carpet for the splendorous royal featherback (Chitala blanci) as the newest resident of your aquariums! This species unlocks at Rank 10. Credit to IrritatingFish for the base model edited to create this mod.940 downloadsupdated 2 y ago
- Razorfish Trio Pack 1by grosseberthaAdd 3 razorfish to your game, the Pearly Razorfish (Xyrichtys novacula), the Leaf Razorfish (Iniistius dea) and the Fivefinger Razorfish (Iniistius pentadactylus).934 downloadsupdated 13 mo ago
- Balvaro store Freshwater pack 3(Pencilfish pack)by balvaro21Pencilfish is genus of fishes native of the Amazon region in South America.They tipically are found in the sides of rivers hiding between the roots and vegetation of aquatic plants and trees.Even when some species like Anostomus group can be found in fast streams and mountain rivers on the easter...933 downloadsupdated 6 y ago
- Nerdy Penguin Aquatics - Dartersby RealNerdguinAdds the several Darters. Including the Candy Darter, Orangefin Darter, Green-Sided Darter, Slackwater Darter, and Banded Darter Rank 11 Thanks to Flishter for the models and base texture.930 downloadsupdated 3 y ago
- Khaydar's Bazaar - Pilot Fishby KhaydarAdds the pilot fish (Naucrates ductor), to your game. Unlocked at rank 8. It will form shoals ingame and follow any animal with a size larger than 30.928 downloadsupdated 20 mo ago
- BLUE - Southern Hulafishby Irritating FishAdd the small southern hulafish (Trachinops caudimaculatus) to your aquarium! This fish comes with a new Australian kelp piece, to help your temperate Australian displays.927 downloadsupdated 3 y ago
- Functional Decorations ACby whoburntmytoastSubmod for Functional Decorations that adds functionality to Architect's Collection objects. The following changes have been made: -Acropolis Columns: +6 Hard Surface & +6 Vertical Surface -Greek Arch: +8 Hard Surface & +8 Vertical Surface -Greek Broken Blocks: +4 Flat Surface & +4 Hard Surface -...927 downloadsupdated 11 mo 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.