I love the Protector series - but this version was far too short and too easy. It looks like the developer got bored half-way through making the game and just released it - because they developed the skills and tavern but you can win the game without the heroes and with only using 2 skill points (and it's probably easy enough with none). The previous poster who said Race Track is ridiculously easy is correct - great way to earn exp/gold if you're struggling - although I see no reason why anybody would struggle. PLEASE keep adding new levels to this game, keen players could send you custom maps and you could make them formal levels.
Came across a huge bug when it switched back to build mode during a wave and the enemies kept coming and I had no weapons - even after I tried clicking 'begin wave' again it just took me immediately back to build mode with even more enemies!
 "Protector III"){kind=icon}
 "The Tower"){kind=icon}