What it likely sold — estimate, stated as a range on purpose
Lifetime units: ~64,598
(P10–P90: 25,839 – 142,116)
Gross revenue: ~$264,322
($105,728 – $581,510)
Estimate, method v1.0 — before Steam's ~30% share, refunds and VAT. The band means: we'd be surprised if the truth sat outside it. How we estimate
Player voice — measured shares of Steam thumbs, never a model
Last 90 days: 82% positive across 231 stored reviews. Adventure games with 100+ reviews typically sit around 86% (median of 4160 games).
Content & longevity70% positive · 54 mentions
“Satisfying, easy idle game. BUT The ending is disappointing and anti-climatic. No warning that you have met the final boss, and once you beat it, the game is effectively over. No further progress possible, for no apparent reason. Zero…”Recommended · Steam review · Apr 2026 · 20 h played
Price & value85% positive · 40 mentions
“Works great on Steam Deck, ZERO STRESS :D Really fun idle game at a great price! Had a small issue with text size on the prestige screen, the dev responded to my post and fixed it super quick, awesome dev ty \o/”Recommended · Steam review · Jun 2026 · 2 h played
Gameplay & mechanics72% positive · 25 mentions
“fun little incremental game. Wish there was 1 or two maps more so we could complete the entire prestige tree. Feels kinda weird you complete the game and don't have enough points to max out the prestige tree. All in all, good game…”Recommended · Steam review · Apr 2026 · 23 h played
Visuals & audio93% positive · 14 mentions
“Idle & Incremental Lovers recommends Zero Stress King : Idle Defense : Many failed to mix idler and tower defense, this one didn't! It takes the the fun parts of both worlds and mix them into a creative, full dopamine "numbers go up &…”Recommended · Steam review · Apr 2026 · 8 h played
Difficulty & balance54% positive · 13 mentions
“Cute game, quite easy and I think relatively nicely balanced. Took ~7 hours to beat, which is fine given the style of the game. The art is nice, the sound effects and animations show a lot of effort was put into the game, too. 100% works…”Recommended · Steam review · Jun 2026 · 7 h played
299 recent English reviews stored · topics keyword-matched · topics under 12 mentions stay hidden · methodology