[SOLVED] Cities Skylines uninstalled itself

[Maywood]

So I last played the game yesterday, as steam correctly displays on my library page. My local files are all still there and Windows still lists the game as installed. However, Steam thinks it's not installed - can't even verify the game files since all the options in the local files settings are greyed out.

What the hell causes this and is there any way I can use my existing local files to "reinstall" the game? Or do I really have to re-download everything?

EDIT:
So I backed up my local files just to be sure and then started installing the game from steam again. Fortunately, steam is clever enough to discovering existing files - so the game is now re-registered without having to download the content again. Even all enabled/disabled mods are exactly as they were before. Interesting...

[grapplehoeker]

Originally posted by Maylle:

Cities Skylines uninstalled itself...

No it did not, that was Steam.

Fortunately, steam is clever enough to discovering existing files - so the game is now re-registered without having to download the content again. Even all enabled/disabled mods are exactly as they were before. Interesting...

Steam isn't very clever though and it is responsible for your issue.
A reinstall of the game is never a solution. Restart Steam to kickstart it into recognising your Games Library content and then perhaps run the Verify Integrity of Game Files app found via rt click game in Steam Library, Properties/Local Files.

[Maywood]

Originally posted by grapplehoeker:

Originally posted by Maylle:

Cities Skylines uninstalled itself...

No it did not, that was Steam.

Fortunately, steam is clever enough to discovering existing files - so the game is now re-registered without having to download the content again. Even all enabled/disabled mods are exactly as they were before. Interesting...

Steam isn't very clever though and it is responsible for your issue.
A reinstall of the game is never a solution. Restart Steam to kickstart it into recognising your Games Library content and then perhaps run the Verify Integrity of Game Files app found via rt click game in Steam Library, Properties/Local Files.

Okay, it makes sense that the uninstall was triggered by steam, my bad. I did restart steam completely, hoping it would just re-discover the game but that did not happen.
As for the "verify integrity of game files" option: this wasn't available since the game, according to steam, was not installed. So all options on the "local files" tab were greyed out.

Anyway, as you pointed out correctly, this most like isn't an issue caused by this game, but rather by steam itself. Now I also know how to resolve it next time it happens. Therefore this issue is solved - thanks for your input though.

[grapplehoeker]

Originally posted by Maylle:

Anyway, as you pointed out correctly, this most like isn't an issue caused by this game, but rather by steam itself. Now I also know how to resolve it next time it happens. Therefore this issue is solved - thanks for your input though.

NP but you should also be wary of saving to the Steam Cloud too as that is notoriously sketchy and you should develop a regular routine of saving manually to your hard drive instead.

[Metacritical]

check to make sure that your antivirus software wasn't the cause,

[Ferdiepip [NL]]

♥♥♥♥, I lost my city because of this. Is there any way to get it back?

[Maywood]

@Metacritical I am just using Windows Defender and there haven't been any problems with it thus far, let alone it uninstalling a whole game. Also, the game was actually still installed according to Windows and all files were still there.

@Ferdiepip [NL] yeah I was afraid for that to happen too - that's why I keep using cloud saves and also have my save folder in sync with google drive