are they both diffrent games and should i play betrayel and then return? or is antara a story betwean betrayel and return? I hope this isnt a silly question.

Betrayal at Krondor and Return to Krondor are both set in Midkemia, a world from R. Feist's books. They share some characters, but are completely separate stories. (RtK is not a 'sequel')

Betrayal at Antara takes place in completely different setting and has nothing to do with previous two games, beside slightly upgraded engine.

ok thanks m8 for the quick answer well i will start at betrayel at krondor then :)