Pretty good price for one of the better MX games. Bike physics and handling make sense and require a bit of skill to master. Tracks and environment deform and affect handling. Best played with a controller (read: only play it with a controller). The ATV & other vehicles don't really add much to it, this game is about dirtbikes + mud. It's probably impossible to make a dirtbike sim, but this game sits closer to sim than arcade.
There are 32 items on sale, but this is the pick of the bunch
Nuclear Dawn, Two Worlds ,Disciples, and the Avernum Bundle are games I would recommend to at these prices.