Alright, so I just dug into this niche recently, and I gotta say, most lists are still stuck on 'The War of the Worlds'. Which, fine, classic. But if you want the real grit of survival, not just the big battles, you need the stuff that crawls under your skin. I'm talking about the societal collapse and the quiet, desperate choices. For that, 'The Day of the Triffids' by John Wyndham is it. It’s not a traditional invasion with ships, but these alien plants blind you and then move in. The horror is so slow and plausible it makes you look at your garden differently.
Then there’s 'The Puppet Masters' by Robert Heinlein. It’s a full-on parasitic takeover, and the survival tactics are all about paranoia and figuring out who’s still human. It’s less about firepower and more about the psychological terror of your neighbor not being your neighbor anymore. That book has a cold, clinical fear that modern body-snatcher stories still draw from. Makes you appreciate the simple, horrible freedom of being in control of your own limbs.
For a more recent, brutal take, 'The 5th Wave' by Rick Yancey nails the escalating stages of an invasion designed to shatter human solidarity. The first wave knocks out power, the second causes tsunamis—it’s a systematic dismantling. The survival here is so raw and distrustful, with kids having to question every adult. It’s less about fighting back immediately and more about the sheer stamina to keep moving when every rule is gone.