Wolf-Extra III is a mod for Spear of Destiny, made by Poet. It was released in six parts, with the first part being released in June 2006, and the final installment seeing release two months later.
Each part consists of only one level, which has been partitioned into four parts. This technique had first appeared in Poet's own The Tower, with each part being separated by an elevator switch, making for an immediate and fast-paced gameplay.
An SDL port for each part was released on November 5, 2012.