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It's obviously incredibly dated now, but I used to absolutely love this game on the Amiga in the 90s - Midwinter

[1] https://en.wikipedia.org/wiki/Midwinter_(video_game)

Midwinter and Flames of Freedom were so far ahead of their time. It’s like Mike Singleton had a vision from the future of Just Cause or Far Cry or something and tried to build it using 90s technology.

Wow it’s fascinating to see what games could be imagined in the era before all the genres were decided upon. Action rpg with strategy elements.

Yes, A World Out Of Time by Larry Niven.

"Almost all remaining life on Earth has adapted to live in Antarctica. Elsewhere life is extinct except for some evidence of biological activity in the Himalayan mountains."

https://en.wikipedia.org/wiki/A_World_Out_of_Time

"Antarctica" by Kim Stanley Robinson. Near future, but excellent prose and narrative.

It doesn't take place in Antarctica, but The Drowned World by J.G. Ballard describes such a future - the last remnants of civilization have retreated to Greenland, and London is a flooded tropical lagoon.