Try contacting them directly. We aren't puppygames support.

Contact puppygames support?
edit: ninja'd
You could also check their site:
http://www.puppygames.net/blog/?p=1103

I emailed them over the same thing and they have yet to reply. It sucks because Revenge of the Titans was awesome! D:

Wow that was sad...But i think its fair enough, since there was a lot of exploits running rampart on that keys. At least i enjoyed revenge of the titans a lot on last weeks, thanks puppygames!

Why is mine still here?

Still have my Titan Attacks from promotion... Glad I didn't try and bag myself another key.

You took two codes. I imagine that's why you are now missing your game.

If you really miss it that much it's not like they are super expensive.

If by "so i took one for me and took one for my wife" you meant that you did it using 2 different email addresses (your wife's and yours), then it means you should get 2 different codes.

If it's still saying your code is a duplicate, use the Steam key gen on their site again and you should get a new code (if you didn't abuse the system). This is on their FAQ.

It was free, you get nothing. That's what happens when d***ks and arseholes are greedy and selfish.

Not exactly the same but I have a Titan Attacks key I didn't use, add me on steam and I'll give it to you.

Damn, you can still get the key? I got one but they said they stopped giving out keys so I deleted the email... shucks.

I got new key back, i just had to reinstall game and reactivate it again, than to send request for new key on their website.

Did you buy for your wife with the same info as for yours game? In that case, you made it look like system abuse. You should have used your wife's info.

In any case, I got Titan Attacks and I still have it.

Revenge of the PuppyGames :D

On my phone, so too lazy to make a clicky, but:
http://www.puppygames.net/blog/?p=1103

puppygames.net sucka

well, i got one for free, and its still there, and has been working completely fine
i think they just think that you used a bot (since you got 2)

Well I will be honest)
I abused when someone said that he activated more than 1)
And right now i re-read blog and what we have:
So in short: run your game, pop your email address in and wait for it to register, then go to http://www.puppygames.net/steam to get a Steam key if it’s Revenge of the Titans or Titan Attacks.
Soooo did this right now and my steam key waits in my mail.
And that's a lesson for abusing)