Toy Defense Free - a World War I tower defense game for Windows Phone

[Windows Central]

Toy Defense Free is a tower defense Windows Phone game set during World War I where you have to protect your base camp from wave upon wave of enemy attacks.
The Windows Phone game has over seventy missions to tackle and four historical weapons that are upgradeable. Available for low-memory Windows Phones, Toy Defense Free can get a little intense with the pace of game play and an easy game to lose track of time with.

Full story from the WindowsCentral blog...