"How well do you play?"
Translation:Kiel bone vi ludas?
Present tense verbs always end in -as in Esperanto. So to say "how well do you play?" you would use ludas. I'm actually not sure what the "or" is doing in ludoras, perhaps someone with more Esperanto experience could explain, but from what I can tell it's not really a word, and if it is then it isn't used often, if it all.