Undertale Multiverse Simulator 1.5 Events

Official upcoming events for Undertale Multiverse Simulator 1.5 by SlayerRealNotFake, pulled live from its Roblox page.

No events are scheduled on the game's Roblox page right now. When the developers announce one, it appears here automatically.

Latest Update

The developers last updated Undertale Multiverse Simulator 1.5 on September 05, 2026.

How Events Work in Undertale Multiverse Simulator 1.5

Developers schedule events on the game's official Roblox page, usually to launch an update, a seasonal celebration or new content. Join the game while the event is live to take part. With around 463 players in-game right now, events here draw serious crowds.

Events by SlayerRealNotFake often come with limited-time content, and new codes frequently drop alongside them — check the codes page when an event starts.

Never Miss an Event

• Hit Notify Me on the event card on the official Roblox page.
• Bookmark this page — it refreshes automatically twice a day straight from Roblox.