Some players are reporting that they’re having trouble patching the game. If Siralim 2 is trying to download an update but it’s not working for you, please try the following:
In Steam, click ‘Steam’ (at the top of the client), then go to ‘Settings’ then ‘Downloads’. Change your ‘Download Region’ to an entirely different country than what you’re currently using. Many users have found success with West Africa and Singapore, for example.
I apologize for the inconvenience. I am not sure why this is happening, and have contacted Valve for additional details that I’ll share with you as soon as possible.