Watever44

Best thing is to change the DNS on your router, so instead of contacting the windows or steam server, it will contact your cache. If it's not present on the cache, the cache will download it and forward it to the client. So speed will be the same as directly downloading it from the server (windows or steam). The issue you might be facing is the same as me that I not sure if there is a walk around. You first need to have a computer to download it first time. I don't think you can force one game or update on the cache server directly. Otherwise it would be perfect for me. My other solution would be to have a temporary computer or virtual open to force the download/install but it would require the double quantity of space, one for that system and one for the cache...

I am thinking of adding a cache docker for steam on my home server. Not sure if it's the best solution or best way to do it. I don't play much since I have a young family and my connections is not really fast and limited on steam due to providers. I am annoyed with waiting for updates mostly or download when slow. I play some games like rocketleague on my living room computer, but having to wait 30 minutes for updates is not possible and annoying and computer is turned off when not in use. If I had a steam cache, is it possible to force or keep some of the games updates or downloaded all the time or on specific time of the day (night)? Or does I need to run a second system (physic or virtual) to first load them? Or is there another solution other than running backup games?