Factorio Forums

On the website where you can buy or upgrade the game, the prices are filled as 0€ ($0)
The euro sign is supposed to be in front of the number (so like this: €0)

You are right if you look at the way most companies sell there products. I think when the Euro sign is behind the price it is more like the way people talk: "This product costs 10 Euros."
So I think it is not this important to change it and if you look at the website of Minecraft, there it is written like *PRICE* EUR like in this case.

Isn't putting the currency sign in the wrong place (i.e. before the price) an American thing?

It's an English thing... also Dutch, Irish, and Latvian.

https://en.wikipedia.org/wiki/Linguisti ... ro#Summary