Astlibra Revision is a 2D RPG side-scrolling video game released on Nintendo Switch in November 2023 created by a solo Japanese video game developer KEIZO but with an initial release via free demo in February 2021 and via Steam in October 2022. Its creator said that it took 16 years to develop. According to Nintendo Life KEIZO was a "humble Japanese salaryman" who "started work on Astlibra because he felt there weren’t enough 2D action RPG games that filled the niche he most enjoyed". Astlibra Revision follows an unnamed protagonist fleeing from a horde of demons attacking his hometown. After running away he finds himself trapped in one of the vast uninhabited Frontier lands of the world with the raven Karon as his only companion. The protagonist then embarks in an eight-year journey with Karon to find his hometown and his childhood friend Anulis. As part of their journey the duo finds the Libra scales an artifact said to be able to change the past and finally reach civilization.