[EVENT] Undertale Multiverse Simulator 1.5 — change history
Every change RBLXDB has observed, newest first, with how many players were in the game when it happened. Observation began when we started tracking this game — this is our record, not Roblox’s.
| When | What | Detail | Players at the time |
|---|---|---|---|
| 2026-09-02 07:00 | Renamed | “[True Dust] Undertale Multiverse Simulator 1.5” → “Undertale Multiverse Simulator 1.5” | 468 |
| 2026-09-02 07:00 | New banner | — | 468 |
| 2026-08-31 10:00 | Update shipped | — | 657 |
| 2026-08-31 07:00 | Renamed | “Undertale Multiverse Simulator 1.5” → “[True Dust] Undertale Multiverse Simulator 1.5” | 610 |
| 2026-08-28 21:00 | Update shipped | — | 944 |
| 2026-08-28 20:00 | Update shipped | — | 960 |
| 2026-08-28 20:00 | Player surge detected | — | 960 |
| 2026-08-26 21:00 | Update shipped | — | 703 |
| 2026-08-26 20:00 | Update shipped | — | 806 |
| 2026-08-26 18:00 | Update shipped | — | 704 |
| 2026-08-26 16:00 | Update shipped | — | 629 |
| 2026-08-23 01:00 | Renamed | “[1M Update] Undertale Multiverse Simulator 1.5” → “Undertale Multiverse Simulator 1.5” | 812 |
| 2026-08-22 20:00 | Update shipped | — | 857 |
| 2026-08-20 19:00 | Description rewritten | — | 905 |
| 2026-08-20 19:00 | Renamed | “Undertale Multiverse Simulator 1.5” → “[1M Update] Undertale Multiverse Simulator 1.5” | 905 |
| 2026-08-20 13:00 | Update shipped | — | 1,051 |
| 2026-08-20 13:00 | Renamed | “[1M Update] Undertale Multiverse Simulator 1.5” → “Undertale Multiverse Simulator 1.5” | 1,051 |
| 2026-08-20 09:00 | Update shipped | — | 898 |
| 2026-08-19 01:00 | New banner | — | 914 |