Undertale Monster Mania Roleplay
A Roblox experience owned by UTMMRP.
RoleplayENUndertaleRoleplayOC
Description (written by the developer; not a statement by this register)
hey guys epicguy here! this uptade has broken things sadly... but dont worrys because well there will be other uptade fixing bugs and adding more attacks for character (asore ,papyrus and even gamepass characters and re adding the lv sistem ones again) but it will take time so yeah thanks for playing my game ------------------------------------------------------------------------------------ Welcome to UTMMRP! again. Here you can be whatever you like! Be your own OC! Roleplay with built in attacks! (it dont hurt people) Explore the map! Find badges! you could also say this is technically a revival of the now privated official utmmrp from nikolander ...so uh try it ig thanks to ea studios for the morphs thing!!!! and other devs! (more credits in game) tags: #RP #UNDERTALEMONSTERMANIA #UTMMRP #SANS #UNDERTALE
Last updated by the developer 8 Aug 2026, 12:18 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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 19 Aug 2026, 00:21 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).
Monetization — game passes
Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.
Badge funnel
How many players have ever earned each badge — a proxy for how far players get before they stop. Steep drop-offs mark where a game loses people. Win rate is the past-day share of players who earned it; categories are assigned by a language model from each badge’s own name and description.