Still plenty of Steam keys left! There should be a button for claiming the key somewhere around the middle of the download or purchase page, but it might require you to first link your Steam account before you can claim the key. It's been a while since I did this myself so I don't quite remember the details.
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Hi mate, apologies for bringing up an old post. I have the current version of Diesel Railcar installed on my PC and have just now realised that I can get it via the Steam Activation key you sent me. Do I need to have both versions one on Steam now and the orginial one on y hard drive?
Thanks
Damo (Wombat61)
No need to have two versions installed, just pick the one that's more convenient to you. Steam downloads and places the exact same files to your hard drive if you use Steam. The itch version is always the latest official release, but Steam also has a newer optional beta testing version of DRS if you're interested in trying out new features in advance (while potentially suffering more crashes because of the nature of the test version).
EDIT: Don't forget to check the Steam workshop for more content if you decide to use Steam instead