A complete Japanese aquarium: 390+ modular prefabs, 33 ready-made exhibits and 46 real-scale animals that swim, plus lobby, cafe, gift shop and a full demo scene. Built-in and URP.Materials use the Built-in Standard shader. For URP, install Universal RP and run Tools > Japanese Aquarium > Convert Materials to URP once (tested with URP 14). Materials show as pink in URP until this step is done.397 PREFABS · 46 ANIMALS · 33 READY-MADE EXHIBITS · FULL DEMO AQUARIUMBuild a Japanese public aquarium for your simulator, management or exploration game. Snap modular halls together, drop in ready-made exhibits, press Play and the animals swim. The layout, exhibit types and animal sizes follow real Japanese aquariums. The aquarium itself, Umitsubame Aquarium, is fictional.WHAT YOU GET397 prefabs built from 334 unique models33 ready-made exhibits: tank, decoration, moving animals and tank lights in one prefab46 animals at real adult size, each with its own info plaque (Japanese, English and scientific name)A walk-through demo aquarium of about 56 x 62 m, built only from this kitA showcase scene with every prefab laid out by categoryTANKS AND EXHIBITSGrand ocean tank with a 16 x 6 m window, 14 m deepDolphin tank with a 15 x 6.1 m floor-to-ceiling windowUnderwater tunnel in 2 m and 4 m sections, plus portalOpen penguin pool 14 m, sea lion pool 7 m, seal pool 7 mRound jellyfish theater with a 5 m window, 7 m jellyfish dish, jellyfish columns360-degree reef cylinder, wall tanks S / M / L / XL, kids-height tank, porthole tanks, 8 m and 12 m panorama tanksEdo-style goldfish room: niche wall, bowl, wooden tub, hexagonal tankTouch pool, cube tank, small animal exhibitEvery tank is hollow, with acrylic, water, sand, rocks, hidden light strips and a swim volumeTHE BUILDINGModular walls 3.5 m and 7 m high: navy hall, white lobby with wood wainscot, warm plaster, cafe wood slatsDoorways, arches, pillars, facade, glass entrance with automatic sliding doors, floors, ceilings, bleachersCorals, kelp, rocks, shipwreck, treasure chest and more for dressing tanksLobby: ticket booth, turnstile, benches, lockers, trash bins, water fountain12 zone signs, posters, framed photos, ocean mural, banners, floor map, feeding-time signGift shop: cash counter with showcase and POS, back counter, shelves, gondola, 6 plush toys in 2 sizes, souvenirsCafe: pastry case, coffee counter, back bar, pendant lamps, booth seating, aquarium-themed desserts and drinksStaff area: door that opens, feed bucket, net, filter unit, ladder, hose reelTECHNICALUnique assets: 334 models, 397 prefabsPolygon count (triangles per model): minimum 112, maximum 33,780, average 3,138, median 942. Largest models: Plush_WhaleShark 33,780, Creature_MantaRay 30,688, Creature_SeaLion 30,584, Creature_SeaTurtle 23,744LODs: Yes, on 99 models with 2 levels (LOD0, LOD1). The other 235 models have no LODsNumber of textures: 98Texture dimensions: 1024 x 1024 (92 textures), 512 x 512 (4), 4096 x 4096 (2)Types of materials and texture maps: PBR, 307 materials using albedo, metallic-smoothness and normal maps, plus transparent water and acrylic and emissive lights and screensUV mapping: YesRigging: NoAnimation count: 0. No animation clips are included; animal movement is script-drivenColliders: on 299 of 397 prefabsReal-world scale, 0.5 m modular grid, walls 3.5 m and 7 m high, +Z is the front of every modelBuilt-in Render Pipeline (Standard shader). URP: run Tools > Japanese Aquarium > Convert Materials to URP (tested with URP 14)GPU instancing enabled on all materials8 runtime scripts in their own namespace, no third-party dependenciesPDF manual includedUnity 2022.3 or newerAll 3D models in this package were generated procedurally by Python scripts executed in Blender. These scripts, the C# runtime scripts (animal movement, tank volumes, doors, day and night switch), the Unity editor tools (material converter) and the scripts that draw the printed graphics (signs, plaques, posters, packaging) and animal skin patterns were written with the assistance of an AI coding assistant (Anthropic Claude). The publisher defined the content, reviewed the models and scenes in-engine and directed revisions (layout, proportions, animal sizes, materials).No text-to-image or text-to-3D generative models were used. PBR surface textures come from Poly Haven (CC0) or are generated procedurally. Lettering uses open-licensed fonts (SIL OFL). All aquarium, brand and character names are fictional.
