More like Monster Earth

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The Kraken WakesNovel
John Wyndhamstandalone novel1953
Alien invasion, about aliens and survival, set in at sea.
“Earth's life is disrupted by the attacks of extraterrestrials whose war machines, emerging from the depths of the oceans, seem indestructible.”
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The Proteus OperationNovel
James P. Hoganstandalone novel1985
Time travel.
Worldwar UniverseSeries
series8 books1994
Alien invasion, about aliens.
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FootfallNovel
Larry Niven & Jerry Pournellestandalone novel1985
Alien invasion and first contact, about aliens, set in contemporary.
“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.”
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The Final CountdownNovel
Martin Caidinstandalone novel1980
Time travel, set in north america and at sea.
“The United States Naval Carrier Nimitz is the finest warship in the world.”
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Slave ShipNovel
Frederik Pohlstandalone novel1957
Dark in tone, about psychic powers.
“The scene is a world in the throes of a low-intensity global war, which appears to be an amplified representation of the Vietnam War, in which the U.S. was just beginning to be involved.”
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