Results vary. You'll want T2Fix regardless.

The GoG edition probably already has it built in.

While it may be possible, in the very loosest sense, to get this to function without patches, this is not an ideal solution. As said above, T2Fix[www.ttlg.com] is the recommended way to play Thief 2, especially considering the Steam distribution does not even have the official patch applied correctly by default.

correct.

LΞGΞNDΛRY_LΞGΞND の投稿を引用：

Has anyone managed to play this game on windows 10 without having to install patches?

virtualbox.

thanks

Back2TheFuture の投稿を引用：

Has anyone managed to play this game on windows 10 without having to install patches?

Yes, I installed the version I bought on GOG.com

Apart from the fact this thread is 4-5 years old, I don't see any reason why the game wouldn't be played without patches these days.

And, isn't the GOG version patched already?

The GOG version has some older lite variant of T2Fix if I remember right

Yeah, that's what I thought.

I an only repeat that there is really no reason to not patch the game with T2Fix. Unless you're looking for trouble.