Based on the steam forums the EU IV demo seems to appear and disappear almost at random. There are rumors that it only appears during sales, so it might be worth keeping that in mind. Others say that if you refresh the page enough times or put it into then out of your cart it may reappear, although neither worked for me.
More importantly is the fact that the demo is bad. It doesn’t really teach you how to play, is buggy as hell and is based off the original version of the game which has been altered several times by now.



