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Kernel Hearts is an action indie game released in 2026, developed by ephemera-games and published by whitethorn-games. Its 155 Steam reviews are 75% positive, earning a Mostly Positive rating, and its initial price was $19.99.
Overview
Kernel Hearts is a 2026 Action game developed by Ephemera Games and published by Whitethorn Games. On Steam it has gathered 276 player reviews, 80% of them positive, which counts as a mostly positive reception among indie titles in the Action category. The game is available on windows, and launched at $20. The pairing of developer Ephemera Games with publisher Whitethorn Games 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 15,000 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, Kernel Hearts can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
276
Positive
80%
Steam appid
2902170
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.07K to 15K
units (median: 11K)
≈ $76K to $176K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2026 | -10 |
| price_$20 | 0 |
| positive_80% | 0 |
| final NB | 40 |
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 Kernel Hearts at roughly 7,000 to 15,000 copies, with a median around 11,000, derived from its 276 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $126K 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
5 observed days · window low $17.99Across 5 observed UTC days from 2026-09-21 to 2026-10-19, the daily lowest tracked USD price across stores ranged from $17.99 to $19.99. The tracked-window low was $17.99 on 2026-09-21.
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
- Humble Store$19.99 Buy
- Fanatical -10%$20.70 Buy
- Green Man Gaming
- GOG.com
Latest tracked store observations (2026-10-19 07:02 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
windows
Frequently asked questions
- How many copies has Kernel Hearts sold?
- indielist estimates Kernel Hearts has sold between 6,624 and 15,456 units (median 11,040), derived from its 276 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed Kernel Hearts?
- Kernel Hearts was developed by Ephemera Games and published by Whitethorn Games.
- Who published Kernel Hearts?
- Kernel Hearts was published by Whitethorn Games, developed by Ephemera Games. See Whitethorn Games's full catalogue and submission status on indielist.
- When was Kernel Hearts released?
- Kernel Hearts was released in 2026.
- How many reviews does Kernel Hearts have on Steam?
- Kernel Hearts has 276 Steam reviews, of which 80% are positive.
- Is Kernel Hearts worth playing?
- Steam players rate Kernel Hearts 80% positive across 276 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 Kernel Hearts can compare it on indielist against semantically similar Action titles such as Terraria, Rust, Phasmophobia, Geometry Dash, ranked by shared tags and genre rather than by ad spend. On the developer side, Ephemera Games's other releases and Whitethorn Games's wider catalog are one click away, letting developers benchmark where Kernel Hearts 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 Kernel Hearts 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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