Underbrawl
A Roblox experience owned by Rain_SIM Studios.
Fighting & PvPENUndertaleFightingFree for All
Description (written by the developer; not a statement by this register)
Underbraw is a Free for All fighting game based on the games UNDERTALE and DELTARUNE. You are able to use different characters with cool abilities to fight people each round. There may be some cool secrets hidden around so goodluck. Find the suggestion NPC to leave suggestions. Please let me know if there are any bugs and thanks for the support ❤️ There isn't an update schedule but hopefully once a week.
Last updated by the developer 20 Jul 2026, 15:58 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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 20 Aug 2026, 20:08 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).