If you bought Ben There, Dan That! on Steam, your version has been updated free of charge. If you buy it through Steam from now on, you’ll get the Special Edition.
If you absolutely love it to pieces and want to show your support, we always appreciate your money. It’s particularly helpful for rent and biscuits.
Best thing to do is buy a copy as well under the ‘pay what you want’ scheme. We’d be very grateful, and promise to reward you with future gaming excitement and happiness.