Once Upon An Apocalypse is a survival adventure game reminiscent of classic Lucas Arts titles, set in the midst of a zombie apocalypse. Players are tasked with daily missions to ensure the survival of their group, starting with four survivors that can be expanded by sending out search parties.

While drawing inspiration from Gods Will Be Watching, this game offers a simpler gameplay experience with less complexity. Failing missions is challenging, and the game focuses more on exploration than intricate decision-making. With its retro visuals, Once Upon An Apocalypse provides a replayable experience lasting around fifteen minutes, allowing players to experiment with various strategies.