Undertale: Corrupted AUs (Demo 3.6)
A Roblox experience owned by Finality Studio.
Description (written by the developer; not a statement by this register)
⚠️ Warning This game contains flashing lights and visual effects that may trigger seizures. Please play with caution. Undertale: Corrupted AUs is an action-focused Undertale fangame where you travel across different AUs, battling familiar faces through obby-inspired fights. Defeat enemies, earn EXP, and grow stronger as you push deeper into each corrupted world. But something isn't right... The AUs are changing. Their code is becoming unstable. Monsters are acting strangely, and entire worlds are beginning to corrupt. END THEIR P A I N. : ) Made by a solo developer. Please don’t expect a huge, highly polished game I’m still working on it Credits & Disclaimer This game uses various assets, characters, music, and creations made by their respective owners. All rights and credits belong to the original creators. This game does not claim ownership over any third-party content used. If you are a creator of any content used in this game and would like it removed, please contact me.
Last updated by the developer 5 Oct 2026, 21:35 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 We do not publish numbers we have not measured.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 |
|---|---|---|
| 6 Oct 2026, 07:00 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).