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Library/Game/Undertale/Certificate

Spread Certificate · No. HIS-01336

Undertale key art: the fallen human in a pool of light among golden flowers

This certifies how far it spread

Undertale

Toby Fox ·September 2015 ·seeded onOpen webthenPressReddit

Spread Score

56

Notable

Verified independently

Verified

11.1K players

Steam all-time peak; live tracker, reached March 2025

Steam Charts

Verified

5M–10M sold

Estimated Steam owners; live band, not audited sales

Steam Spy

Verified

Week of Jan 19, 2016

Observed peak date, Sep 15 ’15 to Week of Jan 19, 2016

Verified

3 platforms

Started on Open web

Claimed, not audited

Claimed

100K sold

Japan PS4/Vita sales; publisher-reported lower bound

Per Gematsu

Issued Oct 22, 2026 · Spread Score v1.2 · 23 sources

howitspread.com/id/HIS-01336

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<a href="https://howitspread.com/id/HIS-01336"><img src="https://howitspread.com/badge/HIS-01336.svg" alt="Spread Score 56, Notable, verified by How It Spread" height="40"></a>

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