Patch Notes & Event Logs — August 2026
Undertale Multiverse Simulator 1.5 Patch Notes
Track official game updates, new AU characters, Phase 5 evolutions, and competitive balance changes.
Multiverse 1.5 Ink & Error Expansion
2026-08-16Doodle Sphere & Anti-Void World Bosses
- Added brand new Doodle Sphere arena and Anti-Void dimension.
- Released Error Sans (The Destroyer) and Ink Sans (The Protector) characters.
- Introduced Phase 5 Omnipotent AU Sovereign evolution tier.
- Added active promotional codes: MULTIVERSE15, ERRORSANS.
Update 1.4
2026-07-25Reaper Sans & Death Scythe Awakening
- Added Reaper Sans with lethal Karma decay execution mechanics.
- Balanced Classic Sans Blue Soul gravity slam velocity.
- Added Judgement Hall 2v2 competitive ranked queue.
Update 1.0
2026-07-02Undertale Multiverse Simulator Official Launch
- Initial launch with Classic, Dust, Cross, and Underfell AU fighters.
- Introduced Souls grinding system and Gaster Shard rewards.