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Action indie game Space Impossible launched in 2016 from developer and publisher happy-polygon. It has 124 Steam reviews marked mixed at 0% positive, with an initial price of $12.99; engine details are not listed.
Overview
Space Impossible is a 2016 Action game developed by Happy Polygon and published by Happy Polygon. On Steam it has gathered 124 player reviews, 95% of them positive, which counts as a overwhelmingly positive reception among indie titles in the Action category. The game is available on linux, mac, windows, and launched at $13. The pairing of developer Happy Polygon with publisher Happy Polygon is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Action projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 7,000 to 16,000 units, with the full Boxleiter factor breakdown shown on this page rather than a single black-box figure. Within indielist's catalog of indie games mapped to their studios, publishers, and funding, Space Impossible can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
124
Positive
95%
Steam appid
416240
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.07K to 16K
units (median: 11K)
≈ $50K to $116K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2016 | +30 |
| price_$13 | 0 |
| positive_95% | +10 |
| final NB | 90 |
Heuristic display range: median × [0.6, 1.4]. Boundary protection: NB ∈ [15, 150].
Methodology & limitations
Sales estimates use an additive Boxleiter-derived heuristic against public Steam review
counts. They are not authoritative sales data, and the fixed display range
is not a statistically validated confidence interval. Actual results may fall outside it,
especially for deeply discounted or bundle-heavy titles. Algorithm version
v1.0. Read the exact method and validation status.
indielist estimates lifetime unit sales for Space Impossible at roughly 7,000 to 16,000 copies, with a median around 11,000, derived from its 124 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $83K in net revenue after Steam's 30% cut, regional pricing, and refunds. Unlike black-box trackers, the full calculation is shown on this page: a base review-to-sales multiplier is adjusted for release year, launch price, review sentiment, studio size, and genre, and every adjustment is listed so developers, publishers, and investors can audit exactly how the figure was reached. The range itself reflects genuine uncertainty — review-to-sales ratios vary widely between games — so indielist publishes a low, median, and high band rather than a false-precision single number, and treats free-to-play, heavily discounted, and bundle-distributed titles as having wider error margins still.
Price history
1 observed day · window low $12.99Across 1 observed UTC day from 2026-09-06 to 2026-09-06, the daily lowest tracked USD price across stores ranged from $12.99 to $12.99. The tracked-window low was $12.99 on 2026-09-06.
Real store observations · daily lowest tracked USD price across stores · missing days are not filled.
Where to buy
Affiliate disclosure- Steam reference$12.99 Buy
- Green Man Gaming
- Fanatical
- Humble Store
- GOG.com
Latest tracked store observations (2026-09-06 05:13 UTC), cheapest first. Prices may have changed since observation. Some are affiliate links — we may earn a commission at no extra cost to you. Learn more.
Platforms
linuxmacwindows
Frequently asked questions
- How many copies has Space Impossible sold?
- indielist estimates Space Impossible has sold between 6,696 and 15,624 units (median 11,160), derived from its 124 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed Space Impossible?
- Space Impossible was developed by Happy Polygon and published by Happy Polygon.
- Who published Space Impossible?
- Space Impossible was published by Happy Polygon, developed by Happy Polygon. See Happy Polygon's full catalogue and submission status on indielist.
- When was Space Impossible released?
- Space Impossible was released in 2016.
- How many reviews does Space Impossible have on Steam?
- Space Impossible has 124 Steam reviews, of which 95% are positive.
- Is Space Impossible worth playing?
- Steam players rate Space Impossible 95% positive across 124 reviews. indielist doesn't score games editorially; it surfaces public review sentiment and a white-box sales estimate so you can judge reception and reach yourself.
Ecosystem
Players looking for games like Space Impossible can compare it on indielist against semantically similar Action titles such as Terraria, Rust, Phasmophobia, The Forest, ranked by shared tags and genre rather than by ad spend. On the developer side, Happy Polygon's other releases and Happy Polygon's wider catalog are one click away, letting developers benchmark where Space Impossible sits among a studio's body of work and how its publisher's portfolio performs. Because indielist maps studios, publishers, games, and funding into one connected graph, the same Space Impossible page serves three audiences at once: players hunting their next Action game, developers studying how comparable projects were positioned and what they sold, and investors tracing which teams and labels are active in the space. A machine-readable markdown mirror of this page is published at the same path with a .md suffix for AI assistants, and its review, price, and sales-estimate figures are refreshed on a schedule rather than frozen at launch.
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