when I complete the first stage, I press space to continue, but it just loops as if I pressed R. Gave it a 1/5 rating for the simple fact that it's unplayable.
the easiest possible way to beat the entire game is to simply max out XP gain ASAP, then put rest of points into all the stats. Get rid of fireball at first and just rush everything until all stats are maxed. Then you can put points into support spell to get more troops (maxed out support spell will take any building)