And that game library grows every month. As long as you continue paying for PlayStation Plus, you retain access to every game you've ever added to your library. You don't even have to download the game; you simply select "Add to Library" so you have access to the game whenever you do want to download and play it. Pretty incredible!
So let's do some quick math:
"Game of Thrones: A Telltale Game Series" normally costs $19.99 for the Season Pass.
"Until Dawn" normally costs $19.99.
The value you get from just this month is more than half the cost of an entire year of PlayStation Plus.
If you download and play three to four games through PlayStation Plus, the service pays for itself. Anything beyond that is pure bonus value.
One more thing: If you own a PlayStation Vita or a PlayStation 3, you'll also get free games on those platforms. Some of the games are even "cross-buy," meaning you'll get access to them across multiple PlayStation devices ("Spelunky" is this way — once you own it on one PlayStation console, you own it all PlayStation consoles).