Coming from Ubisoft creative director Jason VandenBerghe.

I never finished the first BioShock, yet it remains a game I thoroughly enjoyed. Grim Fandango? Never finished it. But I sure as hell use it as an example in design discussions! I have never finished a single Z, but, man, they are fun (usually).

There are a ton of games that don't even have endings. Most arcade-style games and most MMOs don't have real endings. The Sims doesn't have an ending. Poker? Chess? Football?

In fact, a broad majority of the world's long-standing favorite games are specifically designed to never be finished. One game of Sudoku leads to another, which leads to another... In game design terms, even putting an "ending" into your game is, clearly, optional. We know this. It's self-evident. So, then, why do we gnash our teeth and tear out our hair when only 20% of players reach the end of our (story) games?

Out of games that have endings, the only ones I haven't finished are due a lack of free time. I plan to go in and finish those, and have been for years now. I wouldn't knock a game for not having an ending, but I do feel that some titles aim to have an open-and-shut narrative.