Best games with Alien related Mods?

[RedsPro]

What games out there have Top Notch Aliens mods?

Arma 3 Aliens mod in Development

[TheDonkified]

This looks pretty cool

It's for the original Killing Floor.

[completelynewguy]

Rimworld has mods for the Colonial Marines. Just the gear and the turret though, no Xenomorphs. Closest to the Aliens experience would be a custom scenario where your colony gets attacked frequently by bugs or creatures from the Cthulhu mods.

[TheSpoonyCroy]

Seems to be an early doom conversion here for aliens but top notch gore, however would still suggest brutal doom over it

[Katsukai]

Really great doom mod if you are more into survival horror. http://www.moddb.com/mods/hives-and-minds

[Karmac]

you could check the steam workshop for some left 4 dead 2 mods