Cult video game Undertale is celebrating its first decade with a one-night-only 25-piece orchestral concert.

The Determination Symphony will be performed at the Eventim Apollo, London, England, on 22 June 2025. This is a musical journey following the fall into the underground, and will lead the audience through the Ruins, Snowdin, Waterfall, Hotland, and more.

Toby Fox’s Undertale was officially released back in 2015 (though demos came out in 2013). It’s considered by most fans and critics to be a modern classic. The 8-bit style game follows a child’s journey through a whimsical fantasy place called the Underground,  a secret part of the Earth filled with monsters. It’s noted for its complex themes, replayability, storyline and distinct soundtrack.

The concert is produced by Lambert Jackson Productions in partnership with Materia Music. Tickets for Undertale’s 10th anniversary orchestral concert ‘The Determination Symphony’ go on sale today, Friday 28 March and are available from www.eventimapollo.com