I'm rather hurt that no one had mentioned this game yet, but I'm sure I'll live.
Deadly Rooms of Death
- [Turn based Puzzle Game]
(Taken from the "What is DROD?" article on DROD.net found here.
"Of course, Beethro has an advantage. Unlike aforesaid games with characters with oversized swords, Beethro is experienced in killing all sorts of creatures, so it only takes waving the sword in their square to kill them; and Beethro has as much time as he needs to decide what to do. Every turn, he decides whether to move (using the number pad by default), wait (using the 5 on the number pad), or rotate his sword 45 degrees (using Q for clockwise and W for anticlockwise by default), and the game will pause while you decide his next step. Beethro makes his move, then the monsters (many puzzles taking advantage of this fact), so what could have been a frantic, and nigh on impossible, game of hack-and-slash becomes a violent but intelligent puzzle game.
And DROD has some of the toughest puzzles you'll ever see. Some will have you collapsing trapdoors and opening doors; some will have you coaxing invincible monsters into dead-ends; some will have you turning the monsters own attacks against them. And the last handful has you going up against their leader, the 'Neather, who delights in slamming doors in your face and sending wave after wave of monsters to kill you. It's a touching tale that parallels most of our daily existence, and the path to take to break free of our mundane existence and live the life we've always wanted. It's a cunning parable that would make Confucius proud.
DROD Community Website - http://www.drod.net
(Currently getting a makeover, if'n you're wondering)
Caravel Games official website - http://www.caravelgames.com
Version 1.6, known as "Architects' Edition", is 100% free, while the new version, "Journey to Rooted Hold", is $20 USD, but you can get the demo for free, and it includes the level editor and one style.