Which will sell most week 1, both are very hyped, i think in terms of quality Horizon Zero Dawn should win.

No Man's Sky.

A bit silly comparison, but let's see - Horizon is quasi-WRPG, which is more popular than space exploration/survival of NMS with mainstream audience - so I'd go with Horizon.

Horizon just because NMS is at the same price of a AAA game.

I think the uniqueness of No Man's Sky will win out. Plus it sounds like Sony is going to put a ton of promotion behind it. Plus it's coming out in June. When nothing else is out. When is Horizon out? Do we even have a date?

Hopefully both will be marketed big as i really want to Horizon: Zero Dawn become a massive series as Killzone has never been much.

I know Killzone was never that popular on Sony's systems but I thought Shadowfall was pretty good. The story was enjoyable and the ending had a nice twist to it. So I hope they can really breakout with this game cause this studo has some real talent behind it.

Yes Shadowfall had some good moments but dragged on a few missions.

Horizon: Zero Dawn will probably be Playstation's big holiday title, so it should win. It'd very impressive of No Man's Sky to somehow beat Horizon.

Probably Horizon considering that NMS is really innovative/untested but I think NMS will outsell Horizon in the long run if it turns out as good as I think it will. I hope both games do really well though.