Why was Bastion cheaply ripped off and turned into a flash game with a complete ignorance of what made Bastion great. Instead of a decent story they've stolen simple mechanics and parts from its plot with much of its artistic touch. This seems like much more than simple influence, I'd say its near full plagiarism.
@18ml Or saying that Tesla's alternate current is a rip-off of Edison's direct current. This is taking from the same idea and twisting it into a more effiecnt product rather than saying that a game that has FPS elements as the play-style is twist of any game with the only thing of the player's on the screen is his hands and the barrel of a gun.