Peret em Heru: For the Prisoners

Shūjin e no Pert-em-Hru (囚人へのペル・エム・フル, Shūjin e no Peru emu furu) is a Japanese freeware role-playing video game created with RPG Maker Dante 98 II, by Makoto Yaotani (八百谷 真), then under the alias "Makoto Serise" (芹瀬 眞人). "Pert-em-Hru" refers to the Egyptian Book of the Dead, so the title of the game means "The Book of the Dead for the Prisoners". The game was produced by two people, with Yaotani responsible for most of the development, and production took a year and a half to complete.