this isn't nsfw right
NSFW is Not Safe For Work. Essentially, is it something your boss would probably fire you for looking at while you're at work? (So, basically any research. Which this doesn't appear to be.)
Spider Solitaire is also NSFW, as is Minesweeper, and basically any default Windows games, since you're playing games. And not even quality ones (Okay, solitaire is fun, but generally you get bored with it relatively fast.)