Orc Hunter is a game that is simple to play yet surprisingly pretty addictive. You play as a knight in the game, and the object of the game is simple- you have to kill Orcs. You start off near your town- the further you go, the tougher the Orcs get.
Each Orc killed brings the knight money, and this money can be spent at the town shop. All sorts of items or skills can be bought, just as increasing your speed, attack strength or health level.
The keys are fairly simple to master- standard arrow keys to move (you can jump) and ""A"" to attack and ""S"" to shield. This game would be great if you want to pass your lunch hour, although be careful of becoming addicted to it.