EA announced earlier this week that to make up for the wretched (and inevitable) server issues that stymied the launch of SimCity, that everyone who has bought the game will soon be entitled to claim one free EA game from the Origin store.
As long as you register your copy of SimCity before 26 March, you will be able to claim one of the following games for free:
Battlefield 3 (Standard Edition)
Dead Space 3 (Standard Edition)
Mass Effect 3 (Standard Edition)
Medal of Honor Warfighter (Standard Edition)
Need For Speed Most Wanted (Standard Edition)
Plants vs. Zombies
SimCity 4 Deluxe Edition
Oh, and you will have to claim your free game by 31 March.
The free game giveaways will occur in waves, and divided by regions. Apparently the whole world will have been covered by 22 March, so if you own SimCity, then you should keep an eye on your Origin home page for the next few days.