I own Construction Simulator 2015, which I bought on the Mac App Store. I would like to get a Steam copy so I can play on my (new, more powerful) Windows 10 PC, but I don't want to purchase the game again if I can avoid it.

Can I obtain the game through Steam for free, because I already own it? Through a receipt code or a product Key etc?

  • I don’t know about on Mac, but I do know that a game I once bought on the Windows store - which was also available on steam - appeared in my steam library and was available on other devices. I also know that you can manually add games which are not on steam to your steam library. However, I don’t know if this makes them available on other devices. – George Willcox Oct 1 at 2:28
  • Some games have cd-keys that can be redeemed in Steam activating the game there. – Mr. Flay Sepulcrast Oct 1 at 2:43
  • 1
    I don't know where to find the CD Key on the mac app store to use on steam – Marco Oct 1 at 5:21
  • I have reached out to the developers for a response, will let you know what they come back with :) – Robotnik Oct 1 at 6:26
  • 2
    Thanks! Well at least its not the most expensive game I own :) I have already brought another copy. Thanks everyone for your help. – Marco Oct 2 at 4:43

I couldn't find any mention of the Mac App Store version in the CS2015 FAQ, which only states this about playing on Macs:


If you do not yet have a Steam account, you can set one up for free. You will need to download a Steam client to set up an account.

The Steam client is available free of charge at the following website:

Download Steam Client

Please follow the Steam setup prompts and be sure to set up a Steam account.

In order to activate your game in Steam, please do the following:

  1. Open Steam and log into your account.

  2. Click on the heading “Games” and then the subheading “Activate a Product in Steam…”
    Follow the steps to activate the product and enter your product key at the end.

Afterwards, Construction Simulator 2015 will automatically be downloaded and installed

I was able to confirm the game exists on the Mac App Store, so this seems to be an oversight in their FAQ. Realising this, I contacted the developer via the official Facebook page and relayed your question. This was their response:

Thanks a lot for getting touch. It is unfortunately not possible to transfer the accounts between platforms.

In other words, unless you have a product key you can activate through Steam, you will have to repurchase the game on Steam if you wish to play on Windows.

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