Downloaded the Demo and played through the first and only demo mission "Foundries and Forges" with the Mage. Interesting twist on the tower defense genre.
I tryed the same mission as the squire and the first 99% was easier than the Mage but I could not kill the Ogre and actually failed as the Squire. The blockades do little to no damage and the Ogres club attack keeps it outside the range of the bouncer traps. The best weapon I found was about 18 or 20 damage with an upgrade and the Ogre has 5,000 hp. Whats the strategy for defeating the Ogre as a Squire?
The other classes are not available in the demo so have not had a chance to try them yet.
I forget how the squire plays at the low levels, but if you have access to the harpoon, you want to place it behind your blockade or bouncer. Also, you can add some dps by attacking the ogre from behind so you don't die in two hits. The squire used to be a powerhouse class, but the nerfs to his towers hurt a lot. Most people play as the other classes. If you have a mage and monk, you can complete most maps.