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Action indie game Spirits Abyss comes from developer caiys and publisher caiysware. Released in 2020, it has 408 Steam reviews with a Mixed rating, and its $8.99 initial price puts it in the budget tier.
Overview
Spirits Abyss is a 2020 Action game developed by caiys and published by caiysware. On Steam it has gathered 409 player reviews, 96% of them positive, which counts as a overwhelmingly positive reception among indie titles in the Action category. The game is available on windows, and launched at $9. The pairing of developer caiys with publisher caiysware 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 17,000 to 40,000 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, Spirits Abyss can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
409
Positive
96%
Steam appid
1078200
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.017K to 40K
units (median: 29K)
≈ $88K to $206K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2020 | +15 |
| price_$9 | -5 |
| positive_96% | +10 |
| final NB | 70 |
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 Spirits Abyss at roughly 17,000 to 40,000 copies, with a median around 29,000, derived from its 409 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $147K 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
8 observed days · window low $4.94Across 8 observed UTC days from 2026-07-15 to 2026-07-22, the daily lowest tracked USD price across stores ranged from $4.94 to $8.99. The tracked-window low was $4.94 on 2026-07-22.
Real store observations · daily lowest tracked USD price across stores · missing days are not filled.
Where to buy
Affiliate disclosure- Steam reference -45%$4.94 Buy
- Green Man Gaming
- Fanatical
- Humble Store
- GOG.com
Latest tracked store observations (2026-07-22 21:04 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 Spirits Abyss sold?
- indielist estimates Spirits Abyss has sold between 17,178 and 40,082 units (median 28,630), derived from its 409 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed Spirits Abyss?
- Spirits Abyss was developed by caiys and published by caiysware.
- Who published Spirits Abyss?
- Spirits Abyss was published by caiysware, developed by caiys. See caiysware's full catalogue and submission status on indielist.
- When was Spirits Abyss released?
- Spirits Abyss was released in 2020.
- How many reviews does Spirits Abyss have on Steam?
- Spirits Abyss has 409 Steam reviews, of which 96% are positive.
- Is Spirits Abyss worth playing?
- Steam players rate Spirits Abyss 96% positive across 409 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 Spirits Abyss 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, caiys's other releases and caiysware's wider catalog are one click away, letting developers benchmark where Spirits Abyss 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 Spirits Abyss 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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