June 2014 - last edited June 2014
I see many people are having difficulty finding their serial code, therefor I will copy and paste this sticky: http://answers.ea.com/t5/Spore/How-to-find-your-Spore-Serial-Code/m-p/1446994#U1446994
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Spore bought on Origin
The key is displayed directly after purchase on the confirmation page in Origin. It's admittedly easy overlooked.
I tested the purchase myself and received the key in my confirmation email. So this should be fixed.
The developers have been made aware of the key not being displayed in MY GAMES > game details
Spore copies bought on Origin can be traced by customer support and a game advisor should be able to assist in cases where players can't find their key.
https://help.ea.com/en/contact-us/
Physical Spore copies
There is a big article on how to find the key in your registry on the official Spore board that may be helpful:
http://forum.spore.com/jforum/posts/list/5198.page
If the game was previously registered on Origin by a games advisor, the key can be found in MY GAMES > game details
I will update this thread as soon as I get more information."
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It seems that many people are having diffculty in finding their Product/Serial key for Spore, I have included pictures this time to help.
1. Log-in to your Origin account that has Spore in it. It should look similar to this.
http://i.imgur.com/CYdnr48.png
2. Next you want to go into "MY GAMES" In the top left hand corner. The picture below shows this.
http://i.imgur.com/EUc2vPT.png
3. Once you have clicked "MY GAMES" you should have a page that looks something like this.
http://i.imgur.com/CYyQTxO.png
4. Make sure that you have "All Games" and "All Platforms selected. If Spore is already shown then you don't need to do this step.
http://i.imgur.com/vhVJ61f.png
5. Hover over Spore and click it.
http://i.imgur.com/jHaz8Sn.png
6. Click the "i" button do not click "Play"
http://i.imgur.com/yBBAVbB.png
7. Once you've clicked the "i" button, your product key should be here.
http://i.imgur.com/srkBAOp.png
Note: I have blacked out my Product Key as a security measure, it won't have a black line once you see it, that will be your product code, this is your Spore serial code, DO NOT share it to anyone else! You may want to copy and paste it into a note-pad in-case if you lose access to your Origin account.
These images are from Imgur and are completely safe, they show examples on how to find your Spore serial code.
Hopefully this helps everyone.
June 2014
Bumping this to the top, I've requested a sticky for this one, as it has pictures in it.