Aquarium Designer

Become an aquarium designer and solve relaxing ecosystem puzzles entirely offline. Build tanks for client briefs, place plants, rocks, caves, filters, heaters, lights and aeration, then add the requested fish and evaluate the result. Each mission scores cleanliness, oxygen, temperature, planting, shelter and stocking so every choice affects the final habitat quality.

Progress through 24 handcrafted missions across Starter, Designer and Master tiers. Unlock freshwater community tanks, planted aquascapes, cichlid-style layouts, cold-water displays, fictional reef-inspired scenes, biotope challenges and large showcase aquariums.

The first mission teaches the controls directly through short interactive hints. Later missions combine tighter budgets, larger schools, stronger habitat requirements and more demanding water conditions. There are no unfair timers. Retry any mission, improve your score and collect up to three stars per tank.

Aquarium Designer includes persistent offline progress, local achievements, mission unlocks, sound effects, music and haptic preference toggles, pause and restart controls, and a final client approval presentation after evaluation.

No login is required. The game has no ads, purchases, subscriptions, analytics, trackers, cloud services or remote APIs.