How many copies has Proteus sold?

indielist estimates Proteus has sold between 72,369 and 168,861 units (median 120,615), derived from its 1,419 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.

Who published Proteus?

Proteus was published by Twisted Tree, developed by Ed Key and David Kanaga. See Twisted Tree's full catalogue and submission status on indielist.

How many reviews does Proteus have on Steam?

Proteus has 1,419 Steam reviews, of which 76% are positive.

Is Proteus worth playing?

Steam players rate Proteus 76% positive across 1,419 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.

Proteus

Jan 30, 2013 Adventure $9.99

Developer Ed Key and David Kanaga Publisher Twisted Tree

Profile updated Jul 2026

Adventure indie game Proteus focuses on the genre angle rather than combat or systems-driven play. Released in 2013 by ed-key-and-david-kanaga and published by twisted-tree, it lists 1,411 Steam reviews marked mixed, with an initial price of $9.99.

Proteus is a 2013 Adventure game developed by Ed Key and David Kanaga and published by Twisted Tree. On Steam it has gathered 1,419 player reviews, 76% of them positive, which counts as a mostly positive reception among indie titles in the Adventure category. The game is available on linux, mac, windows, and launched at $10. The pairing of developer Ed Key and David Kanaga with publisher Twisted Tree 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 72,000 to 169,000 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, Proteus can be compared against similar Adventure titles and benchmarked on review counts and estimated sales.

Reviews

1,419

Positive

76%

Steam appid

219680

Engine

Unknown

Players (snapshot)

Unavailable

Sales estimate

v1.0

72K to 169K

units (median: 121K)

≈ $413K to $964K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)

72K median 169K

+ How is this calculated?

1,419 reviews × NB(85) = 120,615 median units

Factor	Adjustment
base	+50
year_2013	+30
price_$10	-5
positive_76%	0
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 Proteus at roughly 72,000 to 169,000 copies, with a median around 121,000, derived from its 1,419 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $688K 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

6 observed days · window low $9.99

Across 6 observed UTC days from 2026-07-30 to 2026-09-03, the daily lowest tracked USD price across stores ranged from $9.99 to $9.99. The tracked-window low was $9.99 on 2026-07-30.

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

Where to buy

Affiliate disclosure

Steam reference

$9.99 Buy
Green Man Gaming

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Humble Store

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GOG.com

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Latest tracked store observations (2026-09-03 06:02 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

Adventure CasualIndie

Frequently asked questions

How many copies has Proteus sold?: indielist estimates Proteus has sold between 72,369 and 168,861 units (median 120,615), derived from its 1,419 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
Who developed Proteus?: Proteus was developed by Ed Key and David Kanaga and published by Twisted Tree.
Who published Proteus?: Proteus was published by Twisted Tree, developed by Ed Key and David Kanaga. See Twisted Tree's full catalogue and submission status on indielist.
When was Proteus released?: Proteus was released in 2013.
How many reviews does Proteus have on Steam?: Proteus has 1,419 Steam reviews, of which 76% are positive.
Is Proteus worth playing?: Steam players rate Proteus 76% positive across 1,419 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 Proteus 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, Ed Key and David Kanaga's other releases and Twisted Tree's wider catalog are one click away, letting developers benchmark where Proteus 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 Proteus 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.