pretty much the title. i have played most of sierra, lucasarts and telltale catalogues so if you are suggesting one of their games i've probably already played it. it doesn't have to be a copycat, homage or in the same style as these companies' games either, just that it must satisfy the vague definition of being an "adventure game" and have a good story. thanks in advance, can't wait to see your recommendations!

EDIT: thanks for your recommendations i couldn't reply to everyone. i can't to play (most of) them when i got time.