pedrovay2003: I can confirm this, unfortunately. I have no idea why they would have done that, but here we are.

Crimson-X: Flinthook works outside of steam. Just note that achivements, leaderboards, and cloud saving will not work (actually tells you this on the main menu of the game) but it's still 100% playable. Launch the flinthook.exe

Windows 7

MysterD: Will game-progress save and whatnot while offline?

MarkoH01: Also in case you did not know. Steam recently even killed the possibility to download old versions of Steam games (good to get the latest still DRM-free version i.e.) using the console. However with the help of a tool called "cheat machine" (it's free just google) you can easily revert this by simply changing some bytes in memory.

"1. Run Cheat Engine.
2. File -> Open Process -> Steam
3. Set the right-hand settings to the following:
- "Memory Scan Options": steamclient.dll (just keep pressing S when the drop-down is open to iterate through each and find it quicker)
- "Value Type": Array of byte
- "Hex": checked
- "Writable": unchecked (!)
- "Array of byte": D0 84 C0 0F 85 2E FF FF FF
4. Click "First Scan". You should get a single Address and the searched Value next to it.
5. Right-click the Value -> Change value of selected address(es)
6. Enter new value: D0 84 C0 E9 2F FF FF FF 90
7. Click OK. Done. You can now exit Cheat Engine and are able to downgrade games without the "Manifest not available" error, until you exit Steam. Continue through the guide as before.
You will have to do this every time Steam is (re)started."

pedrovay2003: Okay, we're all updated again!

pedrovay2003: If I may suggest it, I'm a fan of DepotDownloader to download old Steam versions now. It's all Command Line based, but the commands aren't much different than they were when the Steam console worked, and you don't have to edit/un-edit anything to use it.

https://github.com/SteamRE/DepotDownloader

MarkoH01: Afair I tried the DepotDownloader and had some troubles with it - can't remember which troubles I had though. Maybe I'll test it again and tell you.

Geralt_of_Rivia: Have you tried SteamCMD? Downloading old versions should work using the download_depot command.

download_depot <appid> <depotid> [<target manifestid>]

MarkoH01: You obviously did not read my post. With the new UI Steam also broke the feature to download older versions of the game via depot downloading and since SteamCMD afaik is nothing more than Steam without the UI I am almost sure that it won't work better than with the client itself. To download older versions you now will have to use third party tools (like the mentioned depot downloader) or "fix" Steam using cheat engine as described above.

Geralt_of_Rivia: I did read your post but Valve castrating their GUI to take advanced features from average users doesn't mean they also cut down features on their tools for pros. I thought it was worth trying.

But I have just tried and can confirm that only the latest manifest will download with SteamCMD as well.

MarkoH01: Thanks for testing then :)
Will have to checkout the depot downloader tool when I find the time. I know I had some problems with it but I just cannot remember what problems it were.

Just tried it - the problem was:

"Could not find the command "dotnet" ..."

Seems as if I am missing something (and dotnet is installed so it should not be that).

MarkoH01: Never in my life did I see an executable dll file however I tried and still get the same error (this time "could not find the command dotnet.dll"(.