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This RPG, released in 2015, features a unique combat system where players can choose to defeat enemies or spare them. It has garnered significant attention, evidenced by over 290,000 Steam reviews. The developer is currently unknown.
Overview
Undertale is a 2015 Indie game developed by tobyfox and published by tobyfox. On Steam it has gathered 291,647 player reviews, 96% of them positive, which counts as a overwhelmingly positive reception among indie titles in the Indie category. The game is available on linux, mac, windows, and launched at $10. The pairing of developer tobyfox with publisher tobyfox 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 model estimates its lifetime sales at roughly 14.9 million to 34.7 million 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, Undertale can be compared against similar Indie titles and benchmarked on review counts and estimated sales.
Reviews
291,647
Positive
96%
Steam appid
391540
Engine
n/a
Sales estimate
vv1.014.9M to 34.7M
units (median: 24.8M)
≈ $84.9M to $198.0M net revenue (Steam cut + refunds + regional discount applied)
indielist estimates lifetime unit sales for Undertale at roughly 14.9 million to 34.7 million copies, with a median around 24.8 million, derived from its 291,647 Steam reviews using a multi-factor Boxleiter model (version v1.0). That median maps to approximately $141.5M 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
90d · low $5.41Over the last 90 days the price ranged from $5.41 to $9.99, averaging $9.49 across 3 discount windows, with a historical low of $5.41 on 2026-03-16.
Synthetic series for demo. Real ITAD price history loads after Day 3 ingest.
Where to buy
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Platforms
linuxmacwindows
Tags
Great SoundtrackStory RichChoices MatterMultiple EndingsPixel GraphicsFunnyRPGSingleplayerIndie2DComedyReplay ValueBullet HellCuteMemesRetroDarkPsychological HorrorDating SimHorror
Frequently asked questions
- How many copies has Undertale sold?
- indielist estimates Undertale has sold between 14,873,997 and 34,705,993 units (median 24,789,995), derived from its 291,647 Steam reviews with the white-box Boxleiter vv1.0 method. The full breakdown is shown on the page.
- Who developed Undertale?
- Undertale was developed by tobyfox and published by tobyfox.
- When was Undertale released?
- Undertale was released in 2015.
- How many reviews does Undertale have on Steam?
- Undertale has 291,647 Steam reviews, of which 96% are positive.
Frequently asked questions
- How many copies has Undertale sold?
- indielist estimates Undertale has sold between 14,873,997 and 34,705,993 units (median 24,789,995), derived from its 291,647 Steam reviews with the white-box Boxleiter vv1.0 method. The full breakdown is shown on the page.
- Who developed Undertale?
- Undertale was developed by tobyfox and published by tobyfox.
- When was Undertale released?
- Undertale was released in 2015.
- How many reviews does Undertale have on Steam?
- Undertale has 291,647 Steam reviews, of which 96% are positive.
Ecosystem
indielist positions Undertale within the Indie segment so players can surface comparable titles by shared tags and genre rather than by storefront promotion. On the developer side, tobyfox's other releases and tobyfox's wider catalog are one click away, letting developers benchmark where Undertale 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 Undertale 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.