Steam market intelligence

Zen Aquarium

94% positive · 310 Steam reviews · released Sep 25, 2025 · by Astro Cat

What it likely sold — estimate, stated as a range on purpose

Lifetime units: ~13.8k (P10–P90: 5.5k – 30.4k)

Gross revenue: ~$56.5k (P10–P90: $22.6k – $124k)

Estimate, method v1.0 — before Steam's ~30% share, refunds and VAT. The band approximates where about 8 in 10 comparable games land in published studies; some sit outside it. Our own hit rate goes on the accuracy ledger once measured. How we estimate

Estimates are statistical inferences from public data. They are not sourced from Valve or the developer and may deviate materially from actual results. Do not rely on them for investment or contractual decisions. As of Oct 1, 2026.

Player voice — measured shares of Steam thumbs, never a model

Visuals & audio94% positive · 54 mentions

“Really soothing experience. Just don’t go in there expecting a game. Think of it like a real aquarium except the fishes don’t crap all over themselves and die of neglect. It is NOT a gamified focus tool like Spirit City where you stress…”Recommended · Steam review · Sep 2025 · 18 h played · Report / request removal

Content & longevity100% positive · 14 mentions

“Consider adding a variety of sea creatures (DLC) such as clams, pearl oysters, crabs that burrow into the sand, shrimp, axolotls, small stingrays, baby sharks, a tiny island with mudskippers, squids, octopuses, jelly fish, night mode, deep…”Recommended · Steam review · Dec 2025 · 1 h played · Report / request removal

140 recent English reviews stored · topics keyword-matched · topics under 12 mentions stay hidden · methodology

Reviews are shown as published on Steam, including reviews from key activations and free copies — so percentages here can differ from the score on the Steam store page. GameTrend does not check whether reviewers bought or played the game.

Game DNA — store facts, community tag votes, labeled AI inference

How you play together

Single-player

Business model

Buy to play

Sources: Valve store fields · community tag votes · AI-inferred values are marked and drawn from a fixed vocabulary.

Go deeper

The interactive page adds review velocity, the price-vs-units neighborhood map and closest comparables. Making something in this niche? Start your road on GameTrend — free, no card.