 Like the Genesis , the Saturn had an Internet @-@ based gaming service . The Sega NetLink was a <unk> modem that fit into the cartridge slot in the Saturn for direct dial multiplayer . In Japan , a now defunct pay @-@ to @-@ play service was used . It could also be used for web browsing , sending email , and online chat . Because the NetLink was released before the Saturn keyboard , Sega produced a series of CDs containing hundreds of website addresses so that Saturn owners could browse with the <unk> . The NetLink functioned with five games : Daytona USA , Duke Nukem 3D , Saturn Bomberman , Sega Rally , and Cyber Troopers Virtual @-@ On : Operation <unk> . Sega allegedly developed a variant of the Saturn featuring a built @-@ in NetLink modem under the code name " Sega Pluto " , but it was never released . 
