Steam – read a list of Steam Play supported titles

As ever, given enough time a problem will solve itself on it's own. The game is now validating 100% and allowed to play offline (although still no 100% Ready visible as Steam suggests, maybe that's just old.

So, what did I do? Well, nothing. I've no idea why it suddenly worked. I just tried again on a whim and bingo, got to 50% and then jumped to 100% and said verification complete.

I'm speculating but I wonder if all these times it has been going and getting new files (other than the one I found) and until it had done them all it was always going to fail. It raises the question, why didn't it find all the problems in one and then download them all I've no idea, again I'm just taking a guess.

All I can say for those in a similar situation is keep trying, maybe give it a day or two off (which is about the only thing I did because I got fed up). Good luck!

Steamplay only means : 'When you buy this game it will be available for all the listed plateforms without extra cost.'

It doesn't mean : 'this game will be availble for linux in addition to supported/listed plateform'. For istance Stasis is Steamplay and only available for PC and Mac

In your screenshot there is the steamplay logo because when you buy this game you will get both PC, SteamOS and Mac version.

Take a look at steamplay documentation

From this documentation :

Steam Play allows you to purchase your games once and play anywhere. Whether you have purchased your Steam Play enabled game on a Mac or PC (both Windows and Linux), you will be able to play on the other platform free of charge.