Yes, Xenowerk has MFi controller support!
Xenowerk on iOS does support controllers and is compatible with the MFI standard.
As progressing through the game you'll come across a growing number of mutants and expanding areas to cleanse.
Gather pickups from slain mutants to power up weapons and armor.
SPECIAL POWERS Xenowerk™ features a set of special powers to boost your offensive when you're in need.
KEY FEATURES Top-down action shooter Dual stick touch controls Beautifully rendered lighting and shadows Optimized for iOS 8 and Metal graphics! MFi controller support Wide range of weapons and gear Upgradable weapons Special Powers to enhance your gameplay Performance based rating system iCloud save game support Game Center Achievements.
Xenowerk supports MFi controllers.