Far Cry 4 will become more punishing Jan. 13 when the Escape from Durgesh Prisondownloadable content adds permadeath to Ubisoft Montreal's open-world first-person shooter, Ubisoft announced this week. The $9.99 DLC will be free to those who purchased the game's $29.99 Season Pass.Escape from Durgesh Prison will team up Far Cry 4 protagonist Ajay Ghale and the half-crazy Far Cry 3 veteran Hurk. Naked, bereft of weapons and thrown into prison, the duo will have to compete in a series of time trials for a spot on the game's leaderboards. The DLC will be playable in single player or co-op modes. To amp up the challenge, when players die, they'll need to start over at the beginning and use what they've learned to try again.For more on the game, which was released last month for PlayStation 3, PlayStation 4, Xbox 360, Xbox One and Windows PC.