Warlock! was a practical insta-buy for me. The name and the subtitle (inspired by british tabletop roleplaying) drew my attention and the price was really low. At worst I would be bying the creator a beer. At best... Well this is actually what happened.
Warlock! is a love letter to both warhammer fantasy and the fighting fantasy playbooks. My love for fighting fantasy is great, my only concern being the clunky damage dice and the fact that skills are increased without any thematic consistency. Warlock! fixes both issues. Damage is based on regular expressions as in most rpg (1d6, 1d6+1, 2d6 etc) and advancement is based on careers, which the player is supposed to actually change over the course of his adventures.
Furthermore, every career has interesting bits of information for the character which provides hooks for a more sandboxy campaign and also vaguely outlines an implied setting which has my attention.
The only disadvantage in the system lies in the way it handles shield. Personally I would advice everyone to use the rule from Dragon Warriors (another lovely British rpg) On a roll of 6 on a d6 the attack is ignored.
I rate the game 5/5 and encourage everyone to purchase, hoping that the creator provides further support for it.