Questions about Origin/CD Keys

So I picked up a copy of 'Simcity' for $2 at a thrift store. It says Copyright 2013 so I assume that's 'SC2013'? I read the back of the box and it said it needed the origin client, account, etc, and a CD Key. I figured since it was a thrift store find it wouldn't work. Got everything going and of course, the key was already used. I searched google for a place to buy a cd key for it, but all the sites are either for European version of the game, or seem kind of sketchy. Jaap sahib pdf. Is there a place I can buy an activation key for this game directly from a trusted source? Might and magic 6 wiki.

I haven't played Sim City in years since I had an old Windows machine, some 15 years ago, and would like to get back into it! I hope there's a way to get a legitimate key for this game. If not, are there older versions that are legally/easily obtainable? Even SC2000 would make me happy!

SimCity seriesInvite to friendsInvite to friendsAccept invitationAccept invitationPending invitation..User since {{ user.formattedDateUserJoined }} Friends since {{ user.formattedDateUserFriended }} Unblock chat User blocked This user's wishlist is not public.You can't chat with this user due to their or your privacy settings.You can't chat with this user because you have blocked him.You can't invite this user because you have blocked him.tfishell Sorry, data for given user is currently unavailable. Please, try again later. View profileView wishlistStart conversationInvite to friendsInvite to friendsAccept invitationAccept invitationPending invitation..User since {{ user.formattedDateUserJoined }} Friends since {{ user.formattedDateUserFriended }} Unblock chat User blocked This user's wishlist is not public.You can't chat with this user due to their or your privacy settings.You can't chat with this user because you have blocked him.You can't invite this user because you have blocked him. DRM-free. (You should know that by now! ;) The only key might be a multiplayer key if the game had multiplayer.archisbhatt Sorry, data for given user is currently unavailable. Please, try again later. View profileView wishlistStart conversationInvite to friendsInvite to friendsAccept invitationAccept invitationPending invitation..User since {{ user.formattedDateUserJoined }} Friends since {{ user.formattedDateUserFriended }} Unblock chat User blocked This user's wishlist is not public.You can't chat with this user due to their or your privacy settings.You can't chat with this user because you have blocked him.You can't invite this user because you have blocked him.tfishell: DRM-free. (You should know that by now! ;) The only key might be a multiplayer key if the game had multiplayer. Well usually games that originally require CD keys do come with purchases but you don't need them to play the game. GOG has given CD Keys for a number of games I own. As far as I know this game needs a CD key for multiplayer, unless EA retired it like it did for MoH, Clive Barker's Undying and a few others (Hence they have no keys on GOG).DukeNukemForever Sorry, data for given user is currently unavailable. Please, try again later. View profileView wishlistStart conversationInvite to friendsInvite to friendsAccept invitationAccept invitationPending invitation..User since {{ user.formattedDateUserJoined }} Friends since {{ user.formattedDateUserFriended }} Unblock chat User blocked This user's wishlist is not public.You can't chat with this user due to their or your privacy settings.You can't chat with this user because you have blocked him.You can't invite this user because you have blocked him.archisbhatt: Well usually games that originally require CD keys do come with purchases but you don't need them to play the game. GOG has given CD Keys for a number of games I own. As far as I know this game needs a CD key for multiplayer, unless EA retired it like it did for MoH, Clive Barker's Undying and a few others (Hence they have no keys on GOG). When a cd-key is necessary for single-player games gog uses one key for all installers, because it's easier for us (no need to enter anything), easier for them (no need to organize different installers and cd-keys) and for the publisher (no need to generate new keys). If a game needs a different key for multiplayer gog can give out additional keys by request (there should be an info on the gamepage, as example Painkiller) or they list them in the download area (as example Heroes of Might and Magic 5).
About SimCity 4: On the gamepage there is the info that SimCity 4 is singleplayer only, so it's very unlikely gog got more then one key from ea. I already own the game drm-free from gamersgate and there is also no key necessary to install and play the game. You can try and ask the support for an additional key, but I'm pretty sure they can't help you.archisbhatt Sorry, data for given user is currently unavailable. Please, try again later. View profileView wishlistStart conversationInvite to friendsInvite to friendsAccept invitationAccept invitationPending invitation..User since {{ user.formattedDateUserJoined }} Friends since {{ user.formattedDateUserFriended }} Unblock chat User blocked This user's wishlist is not public.You can't chat with this user due to their or your privacy settings.You can't chat with this user because you have blocked him.You can't invite this user because you have blocked him.DukeNukemForever: When a cd-key is necessary for single-player games gog uses one key for all installers, because it's easier for us (no need to enter anything), easier for them (no need to organize different installers and cd-keys) and for the publisher (no need to generate new keys). If a game needs a different key for multiplayer gog can give out additional keys by request (there should be an info on the gamepage, as example Painkiller) or they list them in the download area (as example Heroes of Might and Magic 5).
About SimCity 4: On the gamepage there is the info that SimCity 4 is singleplayer only, so it's very unlikely gog got more then one key from ea. I already own the game drm-free from gamersgate and there is also no key necessary to install and play the game. You can try and ask the support for an additional key, but I'm pretty sure they can't help you. Thank you for clearing my doubt, cheers!SimCity series