What is Completionator?
Completionator is a website dedicated to tracking your video game collection and the games you've played. There are a number of other great websites out there that do essentially the same thing, but I was never able to find one that worked exactly the way I wanted. And that's really the main reason that Completionator was started.
Why are there so many ways to mark a game "complete"?
I continually balance between being a gamer and a collector, so Completionator has been built to hopefully accomodate both. Given that, there are many different ways that gamers / collectors track the games they own, what they're playing, and what they've completed. Completionator tries to offer a variety of ways to track your collection and progress, rather than forcing you into a certain structure.