Disc game apparatus

In game apparatus having an open-ended stadium structure generally semicircular in plan for mounting on a flat playing surface and a plurality of pucks for propelling along such a flat playing surface into the open end of the stadium structure, the improvement comprising a modular stadium structure assembled from a plurality of structural pieces disengageably secured end-to-end, each such structural piece having a generally vertical front face intersecting the flat playing surface and facing inward of the assembled stadium, the exterior angle so formed between adjacent front faces being less than a straight angle by less than thirty degrees but more than half that much, the assembled stadium structure circumscribing an arc less than a half circle by at most about twenty-five degrees.