Viper GTS Viper GTS is a first-person adventure with an anime/manga twist, an adult game, and a visual novel from the masters at Sogna. The main publisher of... Read more About the game Buy the game Requirements Similar games Reviews and ratings Gallery Forum Release dates Quotes System Requirements Viper GTS The game has been released or is in development for PC, but we do not yet know its system requirements. Bookmark the page and check back later.