Thanks for all the support. Legacy UMS is no longer updated and we are putting all our efforts into the Rework of UMS. Report any data issues on our Social server.

This game contains flashing lights that may make it unsuitable for people with photosensitive epilepsy or other photosensitive conditions. Player discretion is advised.

👾 Welcome to Undertale Monster Survival! (UMS) 🔪

An intense UNDERTALE fighting game with popular gamemodes such as Free For All, Survive The Monsters, Battle Royale and the classic Monster vs Humans!

👾 Play as your favorite character from many AUs, all with their different playstyles and abilities! 👾
😈 Use the deadliest weapons as a Human to put a term to the Monsters' reign! 😈

❗ PLEASE NOTE: The game is unfinished. Expect a lot of bugs and missing content. ❗

✨ Thanks to everyone who helped with the development of the game! ✨


There are currently no running experiences.