I’m using BLAEO mostly to organize my backlog and to participate in Play-or-Pay.

Categories

Completed = All of the game’s achievements have been completed. If the game has no achievements, all of the ingame tasks have been completed. If there is no list of ingame tasks, then beating the game counts as completing.
Beaten = Game was played to something that can be reasonably interpreted as the ending and the above doesn’t apply.
Won’t play = I have no intention of playing the game (anymore) and none of the above apply.
Never played = I have never touched the game, i.e., zero playtime.
Unfinished = None of the above apply.

Notes on Categories

• A game may be in Completed with less than 100% achievements, if it’s in the Bugged achievement(s) list.
• Any game in Beaten or Completed must be in at least one Beaten / completed in ____ list. It may be in multiple such lists if it was beaten and completed in two different years. Or if it was completed multiple times because an update undid 100% completion (see the list Update undid 100% completion).
• A game in the list Not beatable (multiplayer / endless) cannot be in Beaten, because it typically doesn’t have anything that can be reasonably interpreted as the ending. It can however be in Completed if it has achievements, all of which are completed.
• A game in the DLC needed to complete list cannot be in Completed because for getting 100% achievements I need to get a DLC which I currently don’t own.