Top critical review
One person found this helpful
Solo campaign lasts about 12 hours
on 4 May 2015
I enjoyed playing Revelations, but it's very short - I finished the solo campaign in a little under 12 hours, on Casual (easy) difficulty. And I don't see why it should take much longer on the harder difficulties if you're good enough to play them without dying too often.
This leaves Raid mode, which is intended for multiplayer. It can be played solo if you don't care for online gaming, but on a quick trial it just seems to consist of blasting your way through the game stages, and grinding for items and XP to level up so you can blast through the next stage.
I only paid £12 for the game so I don't feel too short-changed, but if it had been longer then I would have given it four stars instead of three.