Tons of DLCs which are most likely necessary to be able to have fun with this shit. "Free" my asshole...
Also to quote a review:
"Purchase H1Z1 recently? Refunds will be provided by Steam in accordance with its refund policy." - Steam won't give you any refunds, checked that today.
So they made the game F2P just ONE WEEK after its release, without noticing anyone. Imagine you bought it on launch, played for 2.5 hours or so. That's it, you're ♥♥♥♥ed, your 20$ are gone (and I bought it for 9.99$ when it was in Early Access).
Now they're milking it with the Freemium model, and there's already a 100$ DLC. You don't create all this in just one day or so, it was all planned. An elaborate scam. NEVER buy a game from Daybreak.