Undertale is created by Toby Fox. Fan-made simulators are non-profit projects created by the community. If you haven't played the full game yet, playing the simulator first will spoil one of gaming's best surprises. Play the original first!
(also known as Photoshop Flowey) boss fight from Undertale without playing through the entire game . These fan-made recreations range from web-based versions to downloadable apps and modded maps. 🌐 Web-Based Simulators (Play in Browser)