I have a couple of things you could try to see if they would help:
Delete the humankind folder in Users\[user]\Documents\Humankind\ and the AMPLITUDE studios folder here: Users\[User]\AppData\Local\Temp (AppData folder is usually hidden by default). Launching the game will remake all these folders.
If you are running an anti-virus, try disabling that and launching to see if that lets the game launch.
You can also try clearing the download cache in steam (settings > downloads > clear download cache). Sometimes this helps!
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