Triniti Interactive‘s Call of Mini franchise has come a long way since Call of Mini: Zombies roared into the App Store last year. Here’s what the developers have done in 2012:

• Added 2 new games in the series, Sniper and Brawlers.
• Added online multiplayer to their two most popular games, Zombies and Double Shot.
• Over 15 million downloads.

In the spirit of the holidays, the developers are giving away three of their games for free! Here’s the list:

• Call of Mini: Brawlers — Free
• Call of Mini: Double Shot — Free
• Call of Mini: Sniper — Free
• Call of Mini: Zombies — $0.99

Enjoy!