The most reliable "posts" or threads for this specific repack are generally found on:
: Choose to begin your career in different eras of Japanese racing history, allowing you to race against or breed legendary real-world horses.
Refers to the region-locked nature of the game. Koei Tecmo releases this franchise almost exclusively in the Japanese language on Steam.
It offers a way to experience the full game without navigating complex Japanese storefronts or dealing with region-locked content.