open options and on below click on "English" to receive English language
Just a heads up, it only converts some of the text to English, and after you die it converts back to Polish(?), also having a bit of trouble with the entire gameplay, especially VATS(or whatever is was called in FO2). I played this game out of the box way back 20 some odds years ago(still have the original CD for this and FO1). I like what you're doing here though, and I'm interested to see how it develops.