The SAGA System is a role-playing game system that uses "fate cards" to determine the effects of actions, the system has been used in a TSR, Inc. game, and Marvel Super Heroes Adventure Game is a role-playing game published by TSR, Inc,not be confused with the later,"Marvel Universe Roleplaying Game", published by which organization?  
SAGA System:  The system has been used in TSR, Inc.'s "" game and the "Marvel Super Heroes Adventure Game", later published by TSR. Marvel Super Heroes Adventure Game:  It should not be confused with the earlier "Marvel Super Heroes Game" (also published by TSR) or the later "Marvel Universe Roleplaying Game" (published by Marvel Comics).
Marvel Comics