BL novel game, "Reversing Caste ―オメガバース―" by Abracadabra Games, is a simulation game available on Android. The game is set in a country where the recognition of the caste of the second gender is different. The love story between α (alpha) and Ω (omega) is the main focus of the game. The player consumes scenario tickets to progress through the game. The game features fixed coupling and is for a female audience.

The story follows the lives of two alphas, Hokuto and Mutsu, who are attacked while traveling to another country for business. They end up in a country where the social status of the second gender, omega, is higher than that of the alpha. Unable to return to their own country due to illegal entry, they meet two omegas, Haruaki and Chizuru, who help them.

The game features five characters: Hokuto, Haruaki, Mutsu, Chizuru, and Noku, and is free to play. The story tickets are distributed for free, and the player can enjoy a special scenario with beautiful stills by increasing the character's favorability. The game is compatible with Android 5.0 and later.