Old versions of KSP

[SpaceKraken]

Can we get old versions of KSP, like 0.90, 0.25, 0.23, 0.17, and others?

[Manwith Noname]

Yes but it is not in the drop down menu of the beta tab. You need to know the manifest id of the update version you want to download and use the Steam console.

https://steamcommunity.com/sharedfiles/filedetails/?id=1086279994

https://steamcommunity.com/sharedfiles/filedetails/?id=889624474

Two slightly different ways you can do it there.

[Alaskan Glitch]

I used Aevoa's guide to download KSP version 1.3.1, released October 5, 2017, for the Win64 platform. For those who are interested in doing the samething I will save you several steps.

First, you will need to be logged into Steam.

Second, you will still need to bring up your browser and enter the URL: steam://nav/console

Third, the format the command line uses is:

download_depot AppID DepotID ManifestID

Where the:

• AppID is 220200 for Kerbal Space Program;
  
• DepotID is 220204 for Win64 platform (220201 = PC, 220202 = OSX, and 220203 = Linux);
  
• ManifestID 4879731577466528628, for version 1.3.1 specifically for the Win64 platform.

So it should look like this:

download_depot 220200 220204 4879731577466528628

Each DepotID will have a completely different ManifestID for the same version number. So if you are not looking to download KSP version 1.3.1. specifically for Win64, do not use the values I presented.

If, for example, you wanted to download Kerbal Space Program for the PC (32-bit) for version 1.3.1 the command line would look like this:

download_depot 220200 220201 6129985237511607976

After the download has been completed you will see the following Console message:

Depot download complete : "<Path>" (2060 files, manifest 2193386441228596454) 

The <Path> is the location where the files were downloaded. First move your current KSP folder to another location (or just rename the folder). Then replace the files with the files you just downloaded.

You should not have to make any additional changes because the name of the executable has not been changed since version 1.3.1.

[Chibbity]

1.3.1 is available in the betas tab.