Alternative 1
Download the USAIPDEMO application and start it.
Select Ukraine PPTP from the list and click connect.
(Username: demo / Password: demo) and click connect.
Log into Steam and activate your key.
*You have 7 minutes before you get disconnected!
*You can restart the connection multiple times!
If the system opens the file with Adobe Pixel Blender, you can find a fix here
Close all other applications running on your computer, since the system gets restarted automatically.
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Alternative 2
Step 1: Download the VPN Client from here.
Step 2: Install the VPN Client from the file that you have downloaded.
Step 3: Go here and find the Free Ukrainian VPN Server name.
Step 4: Go back to the VPN Client and from the menu choose Ukraine for country and choose the Free VPN server that you have found in the previous step (e.g. Kiev-S01-I01)
Step 5: Press the connect button and wait for confirmation of location change.
Step 6: Activate the product as normal.
Step 7: When you are done, press the disconnect button and close the VPN Client.