Aksys Games’s murder-mystery DS game 999: Nine Hours, Nine Persons, Nine Doors has finally made its way to iOS.

Trimming back on the fiddly puzzles of the original release, 999: The Novel focuses instead on the game's story. Written by author Kotaro Uchikoshi, it is a twisting tale of deceit and death in which you must form fragile alliances with those around you in order to survive.

Without puzzles, 999: The Novel is essentially a choose your own adventure. With only nine hours to escape the cruise liner in which you've been imprisoned, you and eight other captives must make your way past nine doors - and the horrors held behind them.

Paying close attention to the dialogue will reveal clues as to what is really happening on the ship, and who among the captives may know more than they are letting on about their predicament.

As you would hope, all of the original game's beautiful manga art is present in the iOS version, and looks fantastic on retina displays.

Even without the puzzles, 999: The Novel’s twisting story and mulitple endings are definitely worth investigating on the App Store. You can download it now on iPhone and iPad. Both versions cost £2.99 / $4.99.

iPhone [App Store link]
iPad [App Store link]