Gamers worldwide have recently become captivated by the free-to-play game Umamusume: Pretty Derby, developed by Cygames and released globally in June 2025 after its initial 2021 Japan debut. The game features anime-style “horse girls”—human characters with horse traits—who are based on real racehorses, blending horse racing management simulation with slice-of-life storytelling. Players recruit, train, and bond with these characters to prepare them for races, creating an emotional connection that enhances the thrill of watching their Umamusume compete.

This unexpected viral success has even sparked real-world interest in horse racing, with stables reporting increased visitors and fodder donations from fans eager to support the actual horses inspiring the characters. Umamusume: Pretty Derby stands out in a market dominated by annual sports franchises by offering heartfelt gameplay that introduces a fresh audience to the excitement of horse racing through engaging character-driven narratives and roguelite mechanics.