The Callisto Protocol

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The Callisto Protocol

Short description

Survive to escape the horrors of Callisto and uncover the dark secrets of Jupiter’s dead moon.

Developer
Striking Distance Studios
Publisher
KRAFTON, Inc.
Release
Thu, Dec 01, 2022
Price
$59.99
Reviews
35,208
Positive
66%
Followers
90,669
Owners (estimated)
1M – 2M
Concurrent players
46
Genres
Action, Adventure
Features
Full controller support
Tags
Horror Sci-fi Survival Horror Third-Person Shooter Space Shooter Action-Adventure Third Person PvE Action 3D Story Rich Linear Realistic Adventure Robots Cinematic Dark Futuristic Singleplayer
Revenue (estimated, gross)~$95msomewhere between $60m and $120m · roughly 1M–2M copies

Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $59.99 launch price — there is not enough price history for this game to weight the copies by what they actually sold for. Before Steam's cut, VAT and refunds. How these numbers are calculated.

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History

85 data points since Aug 3, 2026. Gaps mean nothing changed — the value carries forward.

Revenue (est.) ~$94.5m → ~$95m
Reviews 35,012 → 35,208
Followers 90,604 → 90,669
Concurrent players 46 → 46
Price $59.99 → $59.99
Positive reviews 66.2% → 66.3%

The revenue curve is an estimate, not a measurement. It is the only calculated series here: each interval takes the review growth of that period, multiplies it by the sales-per-review factor and by the price actually charged at the time, and adds the result to the running total. That is why it climbs more slowly through discount periods than the review curve next to it. The last point is the same figure quoted above — gross, before Steam's cut, VAT and refunds. How these numbers are calculated.

The blurred area is the rest of the history. 95 further data points reach back to Dec 1, 2022 — your plan shows the last 90 days of it. How far each series in particular reaches is written on its own chart; not every one of them goes back that far. The shape in the blurred area is decoration, not data: the figures are not in this page at all. Plus unlocks the complete series.

Lowest recorded price: $8.99 on Mar 13, 2025.

How crowded is this niche?

How full the niche around The Callisto Protocol is — measured on the tags it leads with, against every other combination on Steam.

±?? Horror + Sci-fi + Survival Horror

Combinations under 15 games are left out to reduce the influence of small samples. The games below share those tags and are free to browse.

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Similar games that found an audience

Games sharing at least 3 of this title's leading tags, with enough reviews to have gone somewhere. Ranked by how much they overlap, not by how big they are. − missing and + extra mark the tags each one does not share with The Callisto Protocol. Studio counts the titles that developer has released — the closest thing to production scale that public data allows. It is not a budget, and nobody publishes those.

Image Name Studio Shared Tag difference Price Reviews Positive Released Revenue (estimated)
Dead Space Dead Space Motive 2 titles 5 − Shooter + Psychological Horror $59.99 63,944 91% Fri, Jan 27, 2023 $146m
$25.4m – $260m
Dead Space 2 Dead Space 2 Visceral Games 2 titles 4 − Sci-fi − Space + Survival + Third Person $19.99 26,265 94% Tue, Jan 25, 2011 $19.7m
$16.7m – $33.4m
Dead Space (2008) Dead Space (2008) EA Redwood Shores first game 4 − Third-Person Shooter − Shooter + Action + Third Person $19.99 23,018 92% Fri, Jan 09, 2009 $17.9m
$7.9m – $86.3m
STAR WARS: Battlefront Classic Collection STAR WARS: Battlefront Classic Collection Aspyr 11 titles 4 − Horror − Survival Horror + Action + FPS $35.01 7,117 23% Wed, Mar 13, 2024 $15.9m
$15.9m – $18.1m
The Thing: Remastered The Thing: Remastered Nightdive Studios 109 titles +1 4 − Horror − Space + Action + Third Person $29.99
$16.49
45%
best price ever
1,193 90% Thu, Dec 05, 2024 $1.5m
$1.4m – $2.7m

There are more like this. Your plan shows the 5 closest neighbours; Plus and Pro show up to 100 — enough to see the shape of a niche instead of a sample of it.

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