When new RuneQuest line editor Ken Rolston began the so-called "RuneQuest Renaissance" for Avalon Hill, his first publication was Sun County (1992) by O'Brien.[1]:179 O'Brien contributed to later RuneQuest releases in the product line during Rolston's tenure at Avalon Hill.
O'Brien published two issues the Glorantha Con Down Under fundraiser fanzine Questlines (1995-1998).[1]:360 These were published in 1995 and 1998 as fund-raisers for gaming conventions held in Melbourne, Australia.[citation needed] O'Brien also created Gorp #1 (Summer, 2000) a mock fanzine that was allegedly a rare collectible item published in 1982.[1]:360 This magazine was produced for a British gaming convention in 2000, and because it nevertheless featured original material by Ken Rolston, Greg Stafford, David Hall and O'Brien, Gorp is considered valuable and collectable in its own right.[citation needed]