[.Rarity]

It's fun, but it usually goes on sale to like $10 or even $5 (which is what I got it for)

I suggest waiting for that to happen I guess.

rly short review (PC): The co-op I find is massively fun, wasted so many hours just playing with other buds screwing around or challenging ourselves, even finding some custom campaigns should we get bored of the stock ones, as well as stuff like mutation and scavenge add abit to the replay value. Versus is also a neat feature. Solo is a bit dull, only times I used it for when I was offline, killing time, or just to play around with custom mods that I can't use online. If you have plans to play with others then I'm sure $20 may be worth it, if not like I said wait till it's on sale, lowest I've ever seen it drop is 5 bucks.