Deus Ex: The Fall, which launched for iOS for $6.99, on jailbroken iDevices have found none of their guns work – not even the tranquilizer gun.
The limitation was first outed on Reddit, with many reviews in the App store describing the game's surprise "feature." The prompt above occurs right after the movement tutorial in the game, at the outset of the shooting tutorial. We've reached out to Square Enix for comment.
Jailbreaking refers to the act of unlocking functionality within iOS devices not originally intended for the end user. While not illegal, it does void the warranty of the device in question.