The Gamebreaker showing is located on the easterly slopes of Mount Brown, west of Sutton Glacier, about 21 kilometres south-southeast of the community of Stewart.

The Gamebreaker occurrence is enclosed by feldspathic wacke volcanogenic clastic sedimentary rocks of the Lower-Middle Jurassic Hazelton Group.

The Gamebreaker zone, identified in 2011, is located approximately midway between the Ridge (103P 272) and N (103P 248) zones and comprises a south west dipping quartz-pyrite-arsenopyrite vein that has been traced for 10 metres along strike a strike of 165 degrees. In 2011, chip samples yielded up to 2.12 and 3.90 grams per tonne gold over 1.1 and 0.75 metres, respectively, while three grab samples (211805 to 211807) taken to the north west yielded from 7.23 to 15.31 grams per tonne gold (Metcalfe, P. (2013-02-28): Technical Report on the Georgie River Property).