Gaim compact, but it's really pricey(I'm just playng the Demo, still trying to justify the price) or if you're ok with shotgun shooting flying things --skeet/trap/sporting/pigeon/pheasant then Clay Hunt VR -- it's an incredible value for money. If you're looking at land-hunting, take note that Gaim compact is geared towards european style driven hunting.

Pavlov Vr is free, I only used the firing range (which is much better than Contractors).

I also did play quite a bit of Contractors but right now I just play the Ninja mode, hunting bots with bow&arrow.

I also got Onwards, but given that it's very realistic (you die very fast if shot), it's too slow pace for my liking.

Space Pirates is also really nice, but it's not a simulator.