A walker device for assisting a user while walking or engaging in exercise on various types of terrain. The walker device includes a frame having a front and rear end. A front fork extends from the front end of the frame and a pair of parallel rear forks extend from the rear end. A wheel is each rotatably secured to the front fork and the rear forks. A handle is adjustably disposed on each of the pair of rear forks via a track so as to allow a user to adjust the height of each handle. The frame is disposed along a single plane and can support a substantial portion of a user's weight, such that the user may be assisted while walking along an unleveled terrain. In some embodiments, a container and firearm bracket are mountable to the frame so the walker device can be used when hunting.