ā¤ļø Fight 100% accurate enemies from UNDERTALE, DELTARUNE and other fan games! ⢠Features 50+ boss and monster fights: Sans, Undyne the Undying, Papyrus, Mettaton, Muffet, Asgore, Jevil, Decibat and more ⢠Get ranked on every fight and climb the leaderboards ⢠Team up with friends in Party mode ⢠Play gamemodes such as Endless, Daily Challenge, and 1v1s ⢠Create custom bosses in the Boss Editor (NEW) ⢠Roll for rare SOUL skins and show them off Join our community for announcements and updates! Mobile, PC, and console supported. Credit for UNDERTALE and DELTARUNE goes to Toby Fox, Temmie Chang and team, and for Undertale Yellow to Team Undertale Yellow.
Current players
Last checked 38 minutes ago
Change since 24 hours ago
48 observations from Nov 1 to Nov 3. Latest 2,178 players at Nov 3 08:03 UTC. Peak 7,653 at Nov 1 19:03 UTC. No collection gaps in this window.
24h Peak
4,914
2026 Peak
10,763
All-Time Peak
10,763
Access
Last checked 2 hours ago
Rating
Votes counted 2 hours ago
85.2K up, 2.4K down
Visits
5.3M
Favorites
143.6K
Genres