Video Game Concerts in Las Vegas: Sonic Live and UNDERTALE at Resorts World - October 2026

The Music You Grew Up With. Played by Real Hands in a Real Room.

There is a specific kind of electricity that happens when music you have heard through a speaker for years suddenly exists in three dimensions around you -- when a theme that lives in your memory becomes a physical thing, performed by musicians who understand exactly what those notes mean to the people in the room. October 2026 brings two concerts built entirely on that premise to Resorts World Theatre, nine days apart. One celebrates 35 years of the fastest thing alive. The other follows the underground journey of a small, determined child. Both are worth your time.

Sonic Live in Concert at Resorts World Theatre

Sonic Live in Concert at Resorts World is October 1 at 8:00 PM -- the first of the two gaming concerts and the broader of the two in generational reach. Thirty-five years of franchise music means the show has something for the kid who grew up with a Sega Genesis and something for the teenager who knows Undefeatable by heart. Live musicians, rock performers, and vocalists take the stage alongside gameplay footage, giving the arrangements a live energy that a studio recording simply cannot replicate. The compositions of Jun Senoue and Tomoya Ohtani -- the composers whose work defined each era of Sonic's sonic identity -- are performed with full instrumentation and the kind of musical Easter eggs that reward a devoted audience. The Green Hill Zone theme, played by a live band, in a room full of people who have been hearing it for decades, is a different experience entirely. One night only.

When: October 1, 2026 at 8:00 PM | Venue: Resorts World Theatre, Resorts World Las Vegas

UNDERTALE: The Determination Symphony at Resorts World Theatre

UNDERTALE: The Determination Symphony at Resorts World is October 10 at 8:00 PM -- and the detail that sets this concert apart from any other video game symphony is the name behind it. Toby Fox, the solo developer who wrote every note of UNDERTALE's score himself, curated this production directly. That authorship is not a marketing point. It means the arrangements reflect the intent behind the music, not a generic orchestral treatment applied from the outside. Twenty-five live musicians follow UNDERTALE's narrative path from the Ruins through Snowdin, Waterfall, Hotland, and New Home -- the same emotional geography the game walks, now filled with brass, strings, and percussion that the original chiptune-influenced score could only gesture toward. Gameplay footage runs alongside throughout. For anyone who ever felt something because of this game, the live room is where that feeling becomes something else entirely. One night only.

When: October 10, 2026 at 8:00 PM | Venue: Resorts World Theatre, Resorts World Las Vegas

The Practical Truth

Two nights, same venue, nine days apart. Resorts World Theatre is a purpose-built concert hall with production capabilities that suit exactly this kind of high-visual, high-sound show. October 1 for Sonic, October 10 for UNDERTALE. Check the booking section below for current availability on both shows.