Deltarune is an RPG video game created by Toby Fox. It is the follow-up to the massively popular Undertale from 2015. A demo was released in 2018 which was labeled as Chapter 1, with plans to release 7 chapters in total.

In this game, the main character Kris and the school bully Susie both find themselves falling into to an unknown world. Looking for answers, they find a dark prince named Ralsei who tells an old prophecy predicting that the three of them are destined to save the world. Together, they travel through this unknown world to not only find a way home, but to learn more about this mysterious place they found themselves in.

tendog plays through Chapter 1 in record time.