American McGee's Grimm: Iron John

In this tale, Iron John is a man with skin of iron captured by hunters and imprisoned in the king's dungeon until the prince befriends him and he is released. Later he and the prince discover a well of golden water than turns everything it touches into gold. Some years later, the prince is fighting a war in a foreign land and Iron John goes to help him win a duel in an arena and the prince marries a beautiful girl.

Once again Grimm has to set out to bring the darker side of fairy tales to life by going through the levels darkening whatever he touches until a dark-meter has filled enough to move onto the next level. Citizens in the land will clean up the dark, so he must butt-stomp them to slow them down. Grimm must also solve some light puzzles and make his way through platform areas. As areas become dark, environments turn into a dark sci-fi world where Iron John is now a huge robot similar to the Terminator, trees become lasers or gun turrets and cottages become factories. The dark version of the tale created by Grimm is viewed at the end of the completed levels.