賽馬娘Pretty Derby is a horse racing simulation game developed by KOMOE TECHNOLOGY LIMITED for iPhone users. The game is set in a world where "horse girls" are born to run. As a trainer, your goal is to train your horse girl to become a champion in various races.

The game boasts of a deep training system that allows you to nurture horse girls with different personalities and charms. You can also participate in various daily training activities and exchange experiences with other trainers to help your horse girl achieve her dreams.

With over 60 horse girls to choose from, each with their own unique stories and personalities, the game offers a rich and immersive experience. The game also features high-quality 3D models that bring the horse girl world to life and make the races and concerts more exciting.

Overall, 賽馬娘Pretty Derby is an engaging and fun horse racing simulation game that offers a lot of content and a great experience for fans of the genre. The game is rated 12+ for sexual content and offers in-app purchases.