no no no . in the old days , TA came on 2 CD discs . One was called normalFULLINSTALL , and the other CD was called MULTIPLAYER SPAWN . The MULTIPLAYER SPAWN CD can be used multiple times no limits to install multiplayer files only . Only 1 person with the FULLINSTALL was required , and everyone else can be on multiplayer spawns . Games like Warcraft 12 , Command Conquer Red Alert series . came on 2 CDs . so 2 people can play with 1 purchase of the game . despite CC RA being free nowStarcraft was the same . It did come on 1 CD , but you had the choice to pick either full install or multiplayer spawn . So effectively , 8 players could play Starcraft 1 , using one purchase of the game . I don ' t know how it works on GOGSteam . I will try and get screenshots of the multiplayer spawn options in Starcraft installer TA installer . some I googledcontentuploads 201007 scinstall . pnggun . c omimagesnewbieMultiplayer % 20 Spawn . jpg