Warhammer (1e) + Fighting Fanatsy + d20 = Warlock!
As a fan of all of the above, I really enjoy this game. Fast and light but still has depth. The additional books all add some nice extra choices as well. Highly recommend Warlock!
The only things keeping this from being a 5 star title for me is the interior art and font used. I would prefer this with no art vs. what's inside currently. Also a font change would be good as the current one seems a little flat or lifeless.
(Matter of tatse, I know.)
If Warlock! gets a revised edition in the future, I'd like to suggest getting Zhu Bajiee (Zhu Industries) to do all the art.
If that happens, I burn all of my other books and only play Warlock! Lol...
[4 of 5 Stars!]