I have a backloggery account and I am trying to get this to match it somewhat. Tags are based on the finished statuses from there...

beaten - I got to the end of the main story, the credits, the last level, etc... you get the idea.
in progress - been actively playing the game, well on the way to being beaten!
unfinished - I've played it, but am not currently trying to finish it.
unplayed - haven't been booted. do not weep for these games, they will get their turn

i'll admit im easy to please, 2.5+ means i have some positive feelings about it