How do you break free from a vampire's lair? Outsmart your captors to reclaim your freedom.

Richard is a contemporary vampire who prefers dining in, so he always keeps a fresh victim imprisoned in his lair. None of his captives have ever survived; YOU aim to be the first to escape.

Engage in a battle of wits with Richard, his vampire ally Paul, and their human servant Charles in a deadly game where bleeding out is just one of many dangers. Discover what it means to share something awful with your captors: You must kill to stay alive.

Donor is a 139,000-word interactive novel by Elena Hearty. It's completely text-based, with no graphics or sound effects, driven entirely by the limitless power of your imagination.

• Play as a young agoraphobic woman. While not a romance, gay, straight, and bi options are available for specific end-game scenarios.

• Choose to be a helpless victim or a cunning manipulator.

• Forge alliances or betray your vampire captors.

• Control your heart rate to survive when Richard and Paul grow hungry.

• Explore the shadowy corridors of Richard’s lair to find silver weapons.

• No permanent death. If you die, return automatically to your last decision.

• Numerous mini-games, including Blackjack and Tic-Tac-Toe!

• 14 Endings in total (7 deaths, 7 "happy" endings), each with its own epilogue. Conclude the game as a familiar, a vampire, a vampire hunter, or earn your freedom!

How will you outsmart your vampire captors?