More like Alien Invasions

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FootfallNovel
Larry Niven & Jerry Pournellestandalone novel1985
First contact, about survival and war, set in north america.
“When aliens travel to Earth from Alpha Centauri, differences between alien and human psychology result in an unprovoked invasion, and the resulting resistance results in the aliens' use of a devastating weapon.”
from the catalogue
The Kraken WakesNovel
John Wyndhamstandalone novel1953
About survival and war, set in mid 20th century and at sea.
“Earth's life is disrupted by the attacks of extraterrestrials whose war machines, emerging from the depths of the oceans, seem indestructible.”
from the catalogue
InvasionNovel
Robin Cookstandalone novel1997
Thriller & suspense, about genetic engineering, set in north america.
The VisitorsNovel
Clifford D. Simakstandalone novel1980
First contact, mysterious in tone, about survival, set in north america.
“WorldCat: Intelligent, alien creatures arrive on Earth from outer space, threatening world stability and presaging the destruction of civilization.”
from the catalogue
DreamcatcherNovel
Stephen Kingstandalone novel2001
Horror, about survival and friendship, set in north america.
“According to the author in his afterword, the working title was Cancer.”
from the catalogue
The Last TheoremNovel
Arthur C. Clarke & Frederik Pohlstandalone novel2008
First contact, set in near future and south asia.