UnderTale Mania: Of the Villain's
A Roblox experience owned by Happy Siblings!.
RacingENUndertaleRPGBoss Rush
Description (written by the developer; not a statement by this register)
Just A Normal Utmm Game Game Group: https://www.roblox.com/communities/32017582/Happy-Siblings#!/about Utmov 2: https://www.roblox.com/games/4942655074/THE-END-Sans-Gamings-Undertale-RPG-2 (Credits to Nikolander and A_RandomDoggo for the UTMM kit) Goal Is To Rework Every Free Model Update Log 7 New Bosses 3 New Weapon 2 New Armors 2 New Blasters 2 New Souls New Maps Revamped Undyne's armor New Battle Maps Alot of changes new game icon
Last updated by the developer 1 Apr 2026, 08:35 UTC.
Live players over time
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Players | Change |
|---|---|---|
| 27 Aug 2026, 22:21 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).