How many copies has 39 Days to Mars sold?

indielist estimates 39 Days to Mars has sold between 12,393 and 28,917 units (median 20,655), derived from its 243 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.

Who developed 39 Days to Mars?

39 Days to Mars was developed by It's Anecdotal and published by It's Anecdotal.

Who published 39 Days to Mars?

39 Days to Mars was published by It's Anecdotal, developed by It's Anecdotal. See It's Anecdotal's full catalogue and submission status on indielist.

When was 39 Days to Mars released?

39 Days to Mars was released in 2018.

How many reviews does 39 Days to Mars have on Steam?

39 Days to Mars has 243 Steam reviews, of which 85% are positive.

Is 39 Days to Mars worth playing?

Steam players rate 39 Days to Mars 85% positive across 243 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.

39 Days to Mars

Apr 25, 2018 Adventure $19.99

Developer It's Anecdotal Publisher It's Anecdotal

Profile updated Jul 2026

Adventure indie game 39 Days to Mars pairs a modest Steam footprint with strong player sentiment: 241 reviews at 85% positive. Released in 2018 by It’s Anecdotal, with the same studio listed as developer and publisher, it launched at $19.99.

39 Days to Mars is a 2018 Adventure game developed by It's Anecdotal and published by It's Anecdotal. On Steam it has gathered 243 player reviews, 85% of them positive, which counts as a very positive reception among indie titles in the Adventure category. The game is available on linux, mac, windows, and launched at $20. The pairing of developer It's Anecdotal with publisher It's Anecdotal is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Adventure projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 12,000 to 29,000 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, 39 Days to Mars can be compared against similar Adventure titles and benchmarked on review counts and estimated sales.

Reviews

243

Positive

85%

Steam appid

504920

Engine

Unknown

Players (snapshot)

Unavailable

Sales estimate

v1.0

12K to 29K

units (median: 21K)

≈ $142K to $330K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)

12K median 29K

+ How is this calculated?

243 reviews × NB(85) = 20,655 median units

Factor	Adjustment
base	+50
year_2018	+15
price_$20	0
positive_85%	+10
genre_Adventure	+10
final NB	85

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 39 Days to Mars at roughly 12,000 to 29,000 copies, with a median around 21,000, derived from its 243 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $236K 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

10 observed days · window low $13.39

Across 10 observed UTC days from 2026-07-20 to 2026-09-07, the daily lowest tracked USD price across stores ranged from $13.39 to $15.00. The tracked-window low was $13.39 on 2026-07-20.

Real store observations · daily lowest tracked USD price across stores · missing days are not filled.

Where to buy

Affiliate disclosure

Steam reference

$19.99 Buy
Green Man Gaming

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Fanatical

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Humble Store

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GOG.com

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Latest tracked store observations (2026-09-07 05:44 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

Genres

AdventureIndie

Frequently asked questions

How many copies has 39 Days to Mars sold?: indielist estimates 39 Days to Mars has sold between 12,393 and 28,917 units (median 20,655), derived from its 243 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
Who developed 39 Days to Mars?: 39 Days to Mars was developed by It's Anecdotal and published by It's Anecdotal.
Who published 39 Days to Mars?: 39 Days to Mars was published by It's Anecdotal, developed by It's Anecdotal. See It's Anecdotal's full catalogue and submission status on indielist.
When was 39 Days to Mars released?: 39 Days to Mars was released in 2018.
How many reviews does 39 Days to Mars have on Steam?: 39 Days to Mars has 243 Steam reviews, of which 85% are positive.
Is 39 Days to Mars worth playing?: Steam players rate 39 Days to Mars 85% positive across 243 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.

Players looking for games like 39 Days to Mars can compare it on indielist against semantically similar Adventure titles such as Subnautica, Raft, Satisfactory, Human Fall Flat, ranked by shared tags and genre rather than by ad spend. On the developer side, It's Anecdotal's other releases and It's Anecdotal's wider catalog are one click away, letting developers benchmark where 39 Days to Mars 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 39 Days to Mars page serves three audiences at once: players hunting their next Adventure 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.

Matched from shared Steam tags and primary genre. Review count breaks ties; it is not a personal recommendation score.