Classic iPhone tower defence game Fieldrunners has a distinguished record of updates, after 1.2 brought with it a cubic ton of additional stuff for free.

The 1.3 update has been eagerly anticipated since Subatomic revealed that the extra content available in Fieldrunners PSP would be coming to iPhone, and now it’s in the approval process.

The 1.3 update, which, owing to the Christmas holidays, may not be live till the new year, features two new maps and in-app purchasing functionality with which to buy them at a price of 99c/59p each. Screenshots of both are above.

Also mentioned on the Fieldrunners Forums are two new towers, called ice and laser, OpenFeint Gold integration, multiplayer challenges, achievements, and online high scores.

We’ll let you know when it hits.

TA forum