Daves trails is played on a 7 x 7 grid. All you have to do is to move the non-rotating tiles to create a trail of like colored tiles to create a trail from the Start to the End. The look and feel of the game is so different because it wasn't created on one of those 'out of the box game creation tools'. You'll notice that immediately. It is window scalable and you can even minimize it while you do other things. (It doesn't take over your computer). Daves Trails has 4 save slots which will keep track of the level and time played. Very convenient if more than one person wants to try and solve the 47 levels. Daves Trails also comes with its own uninstaller which will Completely remove ALL of the fils it put on your machine and will leave it Exactly the way it was found. It won't alter any of your Windows files. Don't you wish all software was written this way? Download it and give it a spin. You have nothing to lose but time tuning up that grey matter of yours.