你可以在steam,遊戲"測試"頁面選取unsupported_32bit,只要不是圖形設置推到最高,理論上沒問題,當然只是臨時性質,官方不保證提供到什麽時候
http://blog.scssoft.com/2016/02/american-truck-simulator-release.html
Official Support only for 64-bit Operating Systems
To make sure that we don't have to make compromises down the line, stuck forever with a guarantee to support a build of the game with 32-bit limitations, we have decided to officially only support 64-bit Windows/Linux/Mac. There are some performance benefits too, but most importantly this will allow us to cross the 2 GB barrier for in-game assets when we need to, without worrying about how to work around the limitations of addressable memory on a 32-bit system.
However, we are receiving a lot of requests from players stuck with a 32-bit Windows to give them a chance to play the game now. We do listen to you, and we are also making available an UNSUPPORTED, alternate 32-bit build of the game. You will find it on Steam, in a Beta branch named unsupported_32bit. At the time of release, it will be functionally equivalent with the 64-bit build, and it should work ok so long as you don't push the graphics setting to max. Keep in mind that it's only an unsupported temporary solution, we are explicitly making no guarantees that it will work now or in the future. At some point in time, perhaps in 6 months, perhaps in 12 months, we will no longer be able to update this 32-bit fork of the game to match the feature set of the official version of the game. Hopefully by that time, you will all have migrated to a new 64-bit OS.
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