Fenixp: I agree, just... All right, for the sake of argument, let us establish that there are DRM-free games on Steam, okay?
Let's say that your opinion on this particular matter is irrelevant here (no offence intended) and let's just define DRM-free games on Steam as those which require Steam for download and install, but not to be played to make following words easier to explain.
Now, to the issue at hand - vast majority of DRM-free games on Steam,
and there's quite a few and probably a ton more, can be copied around your various computers and they will work, regardless of authenticasion. Games which actually do have DRM can be cracked extremely easily. If someone was hellbent on scamming Steam, they could do it and it wouldn't be particularily difficult, as Steam's refund system is even automated. But... That has not turned out to be the case thus far. I honestly believe that if GOG introduced refund policy based on, I dunno, 'game was purchased within 48 hours before asking for refund', scams would not really be much of an issue - but it would be very pleasant consumer experience. IIRC that's how Origin does it, actually.
I agree, offering refunds would probably not affect much the sells. After all, anyone can illegally get the game for free with a simple, quick google search. Steam is still a platorm that sells DRM-protected content, though, even if not all their content is.
Anyway, I agree with the fact that my opinion on the matter is irrelevant (as is yours and that of many). But normally you don't say "no offence intended" unless you are going to say something that can be offensive... therefore in that situation it is better not to say your thing, or at least to say it in another way. Anyway, I agree this argument is off-topic, so let's stay out of trouble and just see if the OP needs help with the game.