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Isometric, turn-based CRPG set in a post-apocalyptic world, UnderRail fits players looking for tactical RPG systems from an indie developer. Released in 2015, it has 7,113 Steam reviews with 86% positive sentiment and was developed and published by Stygian Software at an initial $14.99 price.
Overview
UnderRail is a 2015 Indie game developed by Stygian Software and published by Stygian Software. On Steam it has gathered 6,322 player reviews, 86% of them positive, which counts as a very positive reception among indie titles in the Indie category. The game is available on windows, and launched at $15. The pairing of developer Stygian Software with publisher Stygian Software is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Indie projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 341,000 to 797,000 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, UnderRail can be compared against similar Indie titles and benchmarked on review counts and estimated sales.
Reviews
6,322
Positive
86%
Steam appid
250520
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.0341K to 797K
units (median: 569K)
≈ $2.9M to $6.8M modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2015 | +30 |
| price_$15 | 0 |
| positive_86% | +10 |
| final NB | 90 |
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 UnderRail at roughly 341,000 to 797,000 copies, with a median around 569,000, derived from its 6,322 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $4.9M 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
50 observed days · window low $3.74Across 50 observed UTC days from 2026-06-03 to 2026-07-22, the daily lowest tracked USD price across stores ranged from $3.74 to $14.99. The tracked-window low was $3.74 on 2026-06-26.
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 20:10 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 UnderRail sold?
- indielist estimates UnderRail has sold between 341,388 and 796,572 units (median 568,980), derived from its 6,322 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed UnderRail?
- UnderRail was developed by Stygian Software and published by Stygian Software.
- Who published UnderRail?
- UnderRail was published by Stygian Software, developed by Stygian Software. See Stygian Software's full catalogue and submission status on indielist.
- When was UnderRail released?
- UnderRail was released in 2015.
- How many reviews does UnderRail have on Steam?
- UnderRail has 6,322 Steam reviews, of which 86% are positive.
- Is UnderRail worth playing?
- Steam players rate UnderRail 86% positive across 6,322 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 UnderRail can compare it on indielist against semantically similar Indie titles such as Wasteland 2: Director's Cut, Chained Echoes, Terminus: Zombie Survivors, Project Zomboid, ranked by shared tags and genre rather than by ad spend. On the developer side, Stygian Software's other releases and Stygian Software's wider catalog are one click away, letting developers benchmark where UnderRail 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 UnderRail page serves three audiences at once: players hunting their next Indie 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.
You might also like
Matched from shared Steam tags and primary genre. Review count breaks ties; it is not a personal recommendation score.
- W
Wasteland 2: Director's Cut
Adventure
Shared tags: RPG, Post-apocalyptic, Turn-Based
- C
Chained Echoes
Indie
Shared tags: RPG, Pixel Graphics, Turn-Based
- T
Terminus: Zombie Survivors
Adventure
Shared tags: Open World, Sandbox, RPG
- P
Project Zomboid
Indie
Shared tags: Open World, Sandbox, Post-apocalyptic
- H
Hylics
Indie
Shared tags: Indie, RPG, Atmospheric
- N
NEO Scavenger
Indie
Shared tags: Post-apocalyptic, RPG, Turn-Based
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