Informally, people would often just say "Have you completed it?" e.g.

-Hey, Mike, have you played BioShock Infinite?

-Yes, it's my favorite game.

-Have you completed it?

You might also hear someone say "Did you play it all the way through?"

Informally, people would often just say "Have you completed it?" e.g.

-Hey, Mike, have you played BioShock Infinite?

-Yes, it's my favorite game.

-Have you completed it?

You might also hear someone say "Did you play it all the way through?"