Will there be an Undertale 10th-anniversary celebration?
Summary
Q.Will there be an Undertale 10th-anniversary celebration?
A.Yes — Undertale received an official 10th‑anniversary celebration in September 2025, including a commemorative memories site, a two‑day charity livestream with Toby Fox and Fangamer, special events (like an orchestral concert), and charity auctions that raised hundreds of thousands of dollars.
More info
Yes. Undertale’s 10th anniversary (the game launched September 15, 2015) was marked by several official and community events in September 2025: creator Toby Fox launched a memories/avatar site, a two‑day charity livestream with Fangamer took place (featuring Fox in a limited role), and there were other celebrations such as a one‑night orchestral concert in London and auctioned memorabilia that raised large sums for charity. Coverage and official pages detail these activities and outcomes, confirming an active anniversary program rather than a single on‑page update (Nintendo Life coverage of the memories site; GamesRadar on the charity stream and auctions).
Supporting details: reports note the memories site initially struggled under load, the livestream (hosted around Sept 20–21) let viewers influence playthrough choices and revealed conceptual “what if” content that Fox described as non‑canonical, and auction/stream totals reported by different outlets ranged into the mid six‑figures. For event summaries and timing see the community chronicle (Undertale Wiki 10th Anniversary Stream page), press pieces on the concert (GameSpot), and commemorations noted by outlets like Guinness World Records.



