The Windows Phone app which has gone free next as myAppfree app of the day is Tower in the Sky.

Tower in the Sky is a role-playing adventure where you have to investigate a mysterious tower, battle monsters, discover loot and find clues to solve the mystery. Tower in the Sky is an entertaining game and available for both Windows PC and Phones.

Tower in the Sky Features:

  • Unique gameplay mechanics combine lane based tower defense and RPG genres
  • Victory requires strategy and skill
  • A dozen playable characters each with their own unique abilities
  • A cast of NPC’s and a cross genre story that arcs across 1000’s of years
  • Dozens of different enemy types that require different strategies to defeat
  • Beautiful illustrated vector artwork

Install link