Epic Games' Wes Phillips said that the blockbuster iOS sequel has grown too much in scope to meet its 2012 release date.
"Ever since the talented team at Impossible Studios got their hands on Infinity Blade: Dungeons, they've been busy adding their great ideas to the game. There was also the matter of getting the Impossible Studios team up and running with desks, chairs, staplers and computers," he told AllThingsD.
"The logistics of a new studio and implementing all these great ideas required a little extra time, so Infinity Blade: Dungeons will hit iOS in 2013."
Infinity Blade: Dungeons was announced alongside the latest iPad earlier this year and was expected to launch alongside new iOS hardware, likely the much-rumoured iPad Mini.
The game was not originally created as an Infinity Blade title, but was incorporated into the series after Epic Games were impressed by the project.
> Read Digital Spy's review of Infinity Blade II
Watch a trailer for Infinity Bade: Dungeons below: