This sucks that you can't do anything when you're a silver Member (except buy games etc.), so I'm just wondering what do you get in a Silver Membership?
Nothing really. You can access Xbox Live, the marketplace, send and receive messages and friend requests and access some basic online features like leaderboards (but really that depends on the game).
Silver is the most basic access to Xbox Live. If you want to access everything, you will have to get gold.
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