I've suddenly just had loads of games appear in my steam library without me doing anything. Has this happened to anyone else?

No. I feel like I'm being discriminated against. Obviously using a sample of two, but I need to start somewhere with my grievances!

You're not missing out on much, it's mostly MMO's and low budget games.

Those could be free to play games or games that have a free trial going. They appear in your library in some cases.

If that's not it, it's likely a bug. I recall something similar happening some months back that was a display bug on Valve's part.

Maybe there is a Santa after all.

I never get free [censored]. [censored] Santa.