UnderSwap
A Roblox experience owned by The one and only sans his group.
RoleplayENUndertaleFan-madeRoleplay
Description (written by the developer; not a statement by this register)
undertale map cus theres no underswap map
Last updated by the developer 26 Dec 2020, 21:03 UTC.
0
playing (measured 22 Aug 2026, 20:31 UTC)
255
lifetime visits
100%
liked (1 👍 / 0 👎)
3
favourites (11.8 per 1k visits)
26 December 2020
created (per Roblox)
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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 22 Aug 2026, 20:31 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).
Monetization — game passes
Be my friend!
5,000 R$donate X3.9
200 R$donate X2
100 R$donate
50 R$Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.
Community wiki
underswap.fandom.com2 active editors · 11,892 edits
87 articlesA fan-maintained encyclopedia this game has grown — measured from Fandom’s API. Not affiliated with Fandom.