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Behind Glass: Aquarium Simulator similar games & best alternatives

Behind Glass: Aquarium Simulator

PC (Microsoft Windows), Mac • 2025

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Quick resume

Create stunning virtual aquariums on your PC! Our advanced 3D engine brings your fish tank to life with breathtaking realism, featuring lifelike fish, plants, decorations, and more. Transform your monitor into a vibrant, living aquarium. Virtual aquascaping has never been easier!

Global score

95/100

Genres

Casual, Indie, Simulator

Similar games

    Pros

    • Highly realistic fish animations and behavior
    • Extensive customization and creative freedom
    • Relaxing and immersive experience
    • Active developer support and frequent updates
    • Comprehensive simulation of water chemistry and tank management

    Cons

    • Limited fish and decoration variety currently
    • No multiplayer or social gameplay
    • Interface can be unintuitive or fiddly
    • Lack of narrative or structured goals
    • Some minor bugs and occasional ai glitches

    Analysis

    Broadly representative of its motivational profile, with a few distinct shifts. Motivations that often define this kind of title include Idle, Thrill, Violence, Survival. Here, the score leans higher than usual among comparable games on Expression, Survival. It leans lower than usual among comparable games on Exploration.

    How to use the graph
    Similar games map

    Each dot is a game. They are arranged from the same motivation profile as in the “Motivations” section below. Closer dots usually mean more similar reasons to play (exploration, competition, relaxation, etc.)—not that one game is “better” than another.

    • Larger dot with a light outline: the game you are viewing.
    • Colour: groups of games with comparable motivation patterns (statistical clusters).
    • Hover a dot to see the game name; click to open its page.
    • Scroll or double-click the chart to zoom out and see more games.

    Why don’t the axes read like a score? This view uses t-SNE: it only keeps who is close to whom. The scales are not “good to bad” or hours played—they separate groups on the map. Read distance between dots, not the axis numbers.

    Motivations

    • Autonomy
      4

      "Players have extensive freedom to design and customize tanks, fish, and environments with no forced routines or progression."

    • Competence
      3

      "The game offers skillful aquascaping, water chemistry management, and fish breeding challenges, though some modes are more sandbox-like."

    • Competition
      -4

      "Focus is on personal creativity and relaxation without competitive elements or leaderboards."

    • Continuation
      4

      "Many users report long sessions and habitual play due to relaxing and immersive aquarium building and watching."

    • Cooperation
      -5

      "The game is a single-player simulation/sandbox with no multiplayer or cooperative gameplay."

    • Creativity
      5

      "Strong emphasis on creative freedom in tank design, fish crossbreeding, decoration placement, and lighting customization."

    • Domination
      -5

      "No elements of exerting control or superiority over others; interactions are with environment and fish only."

    • Escapism
      5

      "Highly immersive and relaxing, providing stress relief and distraction from real life through virtual aquarium experience."

    • Expectation
      -4

      "Players engage voluntarily out of intrinsic interest and hobby passion, not due to obligation or pressure."

    • Experimenting
      4

      "Players experiment with fish breeding, tank setups, water parameters, and decoration arrangements."

    • Exploration
      -2

      "Exploration is limited to creative discovery within known assets rather than new areas or secrets."

    • Expression
      5

      "Extensive options for personal expression through fish recoloring, tank customization, and environment settings."

    • Fantasy
      -1

      "The game focuses on realistic aquarium simulation with some fantasy elements in fish crossbreeding."

    • Fellowship
      -4

      "Minimal social interaction; community sharing via workshop exists but gameplay is solitary."

    • Growth
      3

      "Players learn about aquascaping, water chemistry, and fish behavior; simulation mode offers personal development."

    • Health
      -5

      "Sedentary gameplay with no physical activity or health-related features."

    • Idle
      3

      "Can be played in background or as a relaxing screensaver; some modes require attention but many allow passive enjoyment."

    • Intimacy
      -4

      "Limited to no close social relationships formed within the game; interactions are mostly individual."

    • Leadership
      -5

      "No leadership or group management elements present."

    • Progression
      2

      "Some progression through fish breeding and tank improvement, but no strict leveling or resource accumulation."

    • Relaxation
      5

      "Strongly designed for relaxation and flow, with soothing music and calming visuals."

    • Sensation
      4

      "High-quality graphics, realistic fish animations, and ambient sounds provide rich sensory stimulation."

    • Status
      -4

      "No social status or recognition systems; focus is on personal enjoyment."

    • Story
      -3

      "No narrative or campaign mode currently; gameplay is context-free sandbox and simulation."

    • Strategy
      3

      "Simulation mode involves strategic management of water chemistry and tank balance."

    • Thrill
      -3

      "Gameplay is calm and controlled with minimal suspense or risk."

    • Value
      4

      "Players perceive good value for time and money due to depth, visuals, and ongoing updates."

    • Violence
      -4

      "No focus on combat or destruction; interactions are constructive and peaceful."

    • Survival
      2

      "Simulation mode includes survival elements like maintaining water parameters to keep fish alive."

    Where to buy

    Come talk about it on Discord!

    Last update: 29/04/2026