I just realized that my library had it set to all compatibilites. Setting it to Windows 10 only (My OS) a bunch of games were removed, yet... one of which was Riven. But I have previously played Riven on Windows 10 and it worked perfectly fine.

So should I take this with a grain of salt and install my entire library regardless?

If I were going to BUY it and it wasn't "officially supported" I'd ask around. If I already owned it and it wasn't "officially supported" I'd fire that bad boy up and see if that horse can run! ;)

Because like you found out, who knows! I'm sure GoG errs on the side of caution - if they have a checklist of 10 things they want to see in a game to call it "Officially Supported" for System X, and it only meets 9 of those but runs fine 6 or 7 times out of ten it isn't supported. But like I said, if I already owned it there's no harm in giving it a shot.

Though to be honest, I'm now a little paranoid of which will work and which won't. I'm not too scared of older games. But Sam and Max Season 1, when I was playing on Window 7, had a TERRIFYING glitch during the end credits, (despite supported). Yet Sam and Max Seasons 1 and 3 are supported with X but Season 2 isn't. If the non-compatibility makes it prone to tons of creepy glitches I'm honestly too scared to even load it.

Then there's the possibility of said games damaging my harddrive if not compatible. I'm not sure if that's worth the risk.

U wot m8?
:D

Seriously?

Games won't just run or crash if their not compatible, just uninstall and try in a vm or something like that (depends on skill level)

Sorry, what are you on about? Is this some question about galaxy, if so clearly mention that. As for compatibility, most games will run fine on most os's. None of them will damage your hardware. There are some.newer games, not on here as the point of this store is drm free, which have denuvo protection, which was alledged to damage hard drives, but thankfully you wont find any of that rubbish here. And no, you shouldn't install things unless you mean to use them.

Okay thank you :3

Come again?

Hah! That's pretty funny :P

Don't worry, crashing doesn't kill the hard drive, nor playing games that were designed for older OS.

Either it will run fine, or it won't run at all. Or it will run but not well. The worst that can happen is it will hard crash and you'll have to reboot your system.

http://pcgamingwiki.com/wiki/Home is a good centralized site for troubleshooting troublesome games. You can also ask folks here about certain issues.

Just for clarification, GOG's compatibility listing simply means that GOG has tested the game in-house and confirmed that it will work on that operating system, therefore they will offer technical support for it. GOG's compatibility testing is an ongoing work in progress. The lack of an OS listed under compatibility does not necessarily mean a game won't work, it frequently means that GOG simply hasn't tested it yet (especially with Win 10). Even if a game is legitimately incompatible, the absolute worst it might do to a PC is force a reboot, but it is more likely to just fail to run and pop an error message. It is so exceedingly unlikely to cause actual hardware damage as to be virtually impossible. Modern operating systems are already built to deal with software issues safely, long before hardware damage can occur.

It does. When I throw it out of the apartment. Never again, windows XP virtual mode, never again.