If you've been following the trend for the past few minutes, you might have noticed that Cave Story+ is released. If not, then let this be news for you.

If you are residing in the US or the UK, you should be able to purchase the game today. Just search for it in the Steam Store and it will be the first thing that shows up.

On a side note, the game will be sold at 15% off during the first week of release.
Happy hunting!