Papa Sangre is a video game with no video. Instead, its core is the world’s first real-time 3D audio engine for a handheld device. Set in the sinister underworld of Papa Sangre’s palace, the player must navigate menacing soundscapes, avoid the monsters that they can hear approaching but cannot see, and rescue a loved one before it’s too late.

With the sounds of footsteps, different echoes corresponding to different surfaces, and the frightening sounds of unseen monsters, Papa Sangre is both a terrifying gaming experience and also a stunning advance in audio gaming technology. Do Tank worked with Somethin’ Else and 4ip, Channel 4′s public service fund, to develop Papa Sangre.

The feedback and reviews of Papa Sangre have been amazing – it was iPhone Game of the week in January 2011, and featured in App Stores all around the world. The Guardian and Observer newspapers in the UK, Ars Technica, Gamezebo, 148Apps and IGN have all written terrifically positive reviews, it was on metacritic’s list of top iPhone and iPad games for January 2011 and topped MVC’s list of highest reviewed apps of December 2010. To top it all off Papa Sangre has also picked up The Most Innovative award at the 2011 International Mobile Gaming Awards.