Yikes, this is fantastic. One Chance follows the story of scientist John Pilgrim who, along with his team, manages to find a cure for cancer. However, it quickly becomes apparent that the 'cure' kills all human cells, and everyone on Earth begins to die.

You're given seven days to find a cure and save the human race, but here's the twist - you've only got one chance. If the seven days pass by and you don't find the cure, then John will die, the human race is become extinct, and reloading the game will simply show an image of John's death.

There are multiple endings, but obviously you'll only be able to find one of them. Go play the game, then let us know which ending you got! (Cheers to Marcus Richert for the tip!)