Challenge was a role-playing game magazine published by Game Designers' Workshop between 1986 and 1996. Announced in Journal of the Travellers Aid Society No. 22, the new (at the time unnamed) magazine was going to expand JTAS to a larger format (8.5"×11") and add coverage of GDW's new game Twilight 2000 and other games. The larger size would allow printing of things such as deck plans or sector maps which would not fit in the smaller JTAS format. Fifty-three issues of Challenge were published (through number 77), until 1996 when the closing of GDW forced the end of publication.