Well, this is neat. So, Tales from the Borderlands is flat out free for me (as in not tied to PS+). I guess this is because I downloaded Episode 1 for free a while back and thus PSN considers the game purchased already by me. The PS+ version is essentially the season pass. And as it's the season pass, that makes it DLC. If I'm not mistaken, DLC is not locked behind PS+ if, say, I don't renew. Thus, Tales from the Borderlands is completely free for me, forever. Hopefully Telltale's Mincraft Story Mode and Game of Thrones games make their way to PS+, as I downloaded the first episodes of those games, too!