Undertale is an amazing game that has inspired tons of fan-made versions. Here are some of the best that have been released to the public.

That hasn’t stopped fans from formulating theories about how these two titles are connected. Some believe that, within the world of Deltarune, the events of Undertale are completely fictional.

While his personality is pretty much the same as it was in Undertale, Sans’ unusual involvement with the Dreemurr family has left many Deltarune fans shocked, to say the least.

Undertale is by far one of the best, and most influential, indie games ever made. Developed by Toby Fox, who's now working on the episodic Deltarune, it's also had its fair share of fan games.

One of the Undertale community's favorite characters? The one and only jokester skeleton bro, Sans. Check out the gallery below for 21 awesome pieces of Sans fan art.