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Action indie game CastleStorm comes from Zen Studios, which also published it, and launched in 2013. With 1,622 Steam reviews at 89% positive and a $9.99 initial price, it fits a budget-friendly, well-liked pick in Zen Studios’ catalog.
Overview
CastleStorm is a 2013 Action game developed by Zen Studios and published by Zen Studios. On Steam it has gathered 1,251 player reviews, 89% of them positive, which counts as a very positive reception among indie titles in the Action category. The game is available on windows, and launched at $10. The pairing of developer Zen Studios with publisher Zen Studios 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 64,000 to 149,000 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, CastleStorm can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
1,251
Positive
89%
Steam appid
241410
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.064K to 149K
units (median: 106K)
≈ $364K to $849K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2013 | +30 |
| price_$10 | -5 |
| positive_89% | +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 CastleStorm at roughly 64,000 to 149,000 copies, with a median around 106,000, derived from its 1,251 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $607K 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 $2.48Across 6 observed UTC days from 2026-07-17 to 2026-07-22, the daily lowest tracked USD price across stores ranged from $2.48 to $2.48. The tracked-window low was $2.48 on 2026-07-17.
Real store observations · daily lowest tracked USD price across stores · missing days are not filled.
Where to buy
Affiliate disclosureLatest tracked store observations (2026-07-22 16:09 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
windows
Frequently asked questions
- How many copies has CastleStorm sold?
- indielist estimates CastleStorm has sold between 63,801 and 148,869 units (median 106,335), derived from its 1,251 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed CastleStorm?
- CastleStorm was developed by Zen Studios and published by Zen Studios.
- Who published CastleStorm?
- CastleStorm was published by Zen Studios, developed by Zen Studios. See Zen Studios's full catalogue and submission status on indielist.
- When was CastleStorm released?
- CastleStorm was released in 2013.
- How many reviews does CastleStorm have on Steam?
- CastleStorm has 1,251 Steam reviews, of which 89% are positive.
- Is CastleStorm worth playing?
- Steam players rate CastleStorm 89% positive across 1,251 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 CastleStorm can compare it on indielist against semantically similar Action titles such as Rust, Terraria, Phasmophobia, ARK: Survival Evolved, ranked by shared tags and genre rather than by ad spend. On the developer side, Zen Studios's other releases and Zen Studios's wider catalog are one click away, letting developers benchmark where CastleStorm 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 CastleStorm 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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