3D Undertale! Yet Another Bad Time Simulator #1

Let's Play Undertale Simulator - Sans Battle : 2 vs 1

Sans Simulator 3D - Colaboratory

Sans Simulator by G_Sluke32 - Game Jolt

Sans Simulator (Multiplayer)

YABTS: Yet Another Bad Time Simulator DELUXE

SansMutiverse(Sans Simulator) by BadtrapBBites - Game Jolt

Bad Time Simulator: Reimagined, Undertale Fangame

Game Jolt - Share your creations

Yet Another Bad Time Simulator [ZweiHander] : ZweiHander : Free Download, Borrow, and Streaming : Internet Archive

Sans' Real Special Attack (Custom Attack for Bad Time Simulator) by COOLSPAGHETTI - Game Jolt