What PS4 game should I buy?

I have £51, what should I buy on PS4?

I already have BF4, Ghosts, Injustice, DCUO, Warframe, Sound Shapes, Trine 2, Dead Nation, Resogun.

I was thinking about AC4 Black Flag, Killzone SF, I like online games and creative games (I'm buying Minecraft when it's out)
I HATE sports games.

Any suggestions on what to get?

Read more: What PS4 game should I buy?