Seems like more of the same of Risen, but better. Find special weapon to beat Titan.
But the next game will probably be on the mainland. The only way to beat Titans is to return the gods to the world. Having to find a special weapon to kill each Titan is a bit impractical otherwise; though I thought all Titans looked like the one from Risen, I don't recall him having a name or being "the" Titan of Fire. IIRC they made a big deal about the Titan Lord armour was once used to kill a ****load of Reapers Titans thousands of years ago.