I have tried 4 different installers. And I have tried different installation locations. Nothing. The installed games can not be found. Hard disk space is enough available. And the hard disk space is the same - after and before the installation. But all installers say "successful installed".

What is going on?

I'll assume you checked the /Applications folder already. Did you look for a "GOG Games" folder in there, too?

Did you try Spotlight to find them?

I have checked all possible install folders + Spotlight. Disk space will be less during the installation. But jumps back to the disk space before the installation at the moment the "successful instlalled" message pops up... It seems the installed files disappear... I have tried different game installers of my library

Can I extract the *.app from the pkg-Installer manually?

Ha! Good luck getting anything out of the packages by hand. I'd love to find out how. The ones from GOG usually don't even list the files they will install, which is supposed to be available from the menu in File>Show Files.

I'm guessing they use packages when there's a patch that will get installed, but I really don't know. I wish they always used DMGs, drag-n-drop install/uninstall is what I expect from downloads.

You might want to contact support, it might be quicker. Tell them the exact games, and your system version and such. I haven't noticed much macos talk on these forums.

Of course, also check that you have the latest installers. Never know, it might be a DMG instead of what you've downloaded long ago. I've noticed it sometimes changing after updates.

Yeah. What was the problem with DMG?

Damn GOG support... I've only had bad experiences with GOG support so far. But I will try it again

In my experience, the two times I have contacted GOG Support regarding games and MacOS, they've replied right away and efficiently. I'd suggest contacting them first and then asking here if somebody has had the same issue as you did. It'll probably save you a lot of time.

Did you try Spotlight to find them?

This might help: http://www.e7z.org/open-xar.htm

For curiosity purposes I tried to extract the Mac pkg installer of Tangledeep under Linux using:

7z x "tangledeep_enUS_b_102b_18613.pkg"
Then went into the "package.pkg" folder and ran >> 7z x "./Scripts"
It extracted another "Scripts~" file and ran >> 7z x "Scripts~"
The actual game contents are located in the "payload" folder

Unfortunately that is as far as I can get as I don't own a Mac. Hope it helps.

@GOG: PLEASE NO *.pkg installers for Mac OS X!! We need *.dmg packages

Yep, that's what I was finding in the PKGs when I tried that a long time ago, a script. Used to be there'd be a file with a list of the names and locations. In GOG's PKGs there's not even that, or maybe it's just not readily accessible?

The script was what I was trying to avoid because I didn't know what it did. I didn't want anything to be installed anywhere other than where I wanted it, because that would help me feel more comfortable with backups and troubleshooting.

With a DMG the application is ready for drag-n-drop wherever, but a PKG is like those Install Wizards from back in the '90s. Maybe Win95? You know, like with Netscape. Back then it felt exciting, but nowadays I've got too many memories of troubleshooting woes with installers because of everything being spread out across the system.

I don't know why it's got to be so fancy as to have a script for a script and then a blob if it's only going to put everything into a single ".app" folder. The PKGs just make me suspicious that the upkeep of what's installed is going to infuriate me sometime later, but that would be alleviated if there was at least a list of locations for the files.

Anyway, this is someone else's dilemma for a different reason. Sort of different. The installer has put the application someplace other than expected, or maybe the installer completely failed with a false success message. The PKG installer is an application meant to be helpful that is at this moment standing in the way of using another application.

Speaking of which, I wonder if Galaxy would help? Does it download a PKG? It would still have to use the Installer app, so Galaxy would be one more application. A longer chain of applications. But maybe Galaxy provides some oversight to ensure it doesn't give a false success message? (Interestingly, Galaxy itself is provided as PKG, so…)

Which installers and you need to be sure to select the destination folder late in the install process or nothing happens. The disk is selected early on IIRC.

Probably not. I think the uproar you're referring to was about anything requiring admin privileges at all, because there shouldn't be any need for that. Or because people prefer the apps to be self-contained, especially for drag-n-drop delete.

Besides, the Installer application (comes with the OS) would simply ask for the admin username/password if the PKG file needed it, so there'd be no mystery about that. (Unlike the EXE files for installers on Windows, the PKG file isn't an executable.)

Here, I'll give you a few hints as to why GoG stopped using DMG:

"proprietary disk image formats", "Apple has not released any documentation on the format", and "reverse engineering".

Anyone who has ever dealt with an Apple Product knows they hate the third the most so they probably put the kibosh on it in the effort to maintain that lovely closed garden that prevents the system from truly evolving in ways that make sense. (As can be seen with Microsoft trying to force their own dumb formats.)

Wouldn't that be the same reason to not use PKG?

I'd be fine with any simple compression. How about just ZIP? Or that new one, is it ".xz"? It's just an application, or a folder of stuff with the application.

I like it when an application is self-contained, neither an installer or uninstaller is ever needed. Of course, that also requires the application to behave and not write files elsewhere, like those ridiculous dot files in the home directory. Seems to me game applications ought to be able to restrain themselves.