An adjustable game carcass spreader device. There is a first tubular member; a second tubular member, slidably coupleable to the first tubular member, having a first pin aperture; a first adjustment system, including: a plurality of securing apertures, configured to secure a pin positioned therethrough; a first pin member, selectably extendable through one of the securing apertures; and a bias member coupled to the first pin member. There is a plurality of cap members, removably coupled to end portions of the device. There is a second adjustment system, including a third tubular member, rotatably coupled to the second tubular member. An end portion of the second tubular member and an end portion of the third tubular member are threaded. The first tubular member includes indicia thereon. There is a second pin aperture and a second pin member, the second pin member is selectably extendable through one of the securing apertures.