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我只有Win7和mac 10.13,装不了新版
https://content-system.gog.com/open_link/download?path=/open/galaxy/client/setup_galaxy_1.2.67.58.exe

https://www.gog.com/forum/general_beta_gog_galaxy_2.0/how_to_keep_galaxy_v12_client_and_avoid_the_forced_v20_beta_update/page1

这样应该可以。