![Undertale: Mythos [Beta]](https://tr.rbxcdn.com/180DAY-1f8d1ff4e2c170e6d563084d322c03fc/256/256/Image/Png/noFilter)
Undertale: Mythos [Beta]
A Roblox experience owned by Undertale Mythos.
RoleplayENUndertaleRoleplayCharacter Creation
Description (written by the developer; not a statement by this register)
Welcome to Undertale: Mythos! Create your own adventure and roleplay as your own OCs in this fanmade game based on the poplar game "Undertale". Undertale: Mythos is a fanmade passion-project made by one person!! 🎨 Design & save your own unique characters! 📝 Develop your own story, and choose your own destiny. 🌎 Explore the underground and its unique features. ✨ Roleplay with others, make new friendships and rivalries.
Last updated by the developer 15 Apr 2026, 17:02 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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 16 Aug 2026, 21:20 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).
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.