Infinity Blade III players can work together and earn a special-edition digital samurai sword from 47 Ronin in an in-game event later this month.
ChAIR and Epic Games announced the promotion Monday. Starting Friday through Dec. 24, players team up in a ClashMob to defeat 47 Ronin's Samurai Brute.
If enough Infinity Blade III players participate and succeed, all players will receive the Brute's sword, which will be added to their in-game weapons.
Infinity Blade III was released in September for iOS devices. The hack-and-slash game was used on stage by Apple to show off the power of the iPhone 5's 64-bit chipset. The game costs $6.99 [iTunes link], and the 47 Ronin ClashMob is available for free to all players who have updated to the "Soul Hunter" version.
47 Ronin, starring Keanu Reeves as a samurai seeking revenge for his master's murder, arrives in theaters on Dec. 25.
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