As the topic said I bought GDT last year but recently had harddrive failure and lost the installer. Is there any way I can get it again or do I have to re-purchase it? I registered with the same e-mail I used to purchase.
Hey @Luwinkle
You will probably benefit from the updates too 
How you reinstall or update the game depends on which edition you purchased.
For the Windows 8 Store edition, please sign in to the windows 8 store on your windows 8 PC, with the account credentials you used when you purchased the game. From here navigate to the user control area to redownload any purchased apps.
For the Standard edition please refer to the original order fulfilment email from our distributer Fastspring, this contains all the download links for each supported platform and a link to your personal order page which contains your free Steam key. Please note that the Steam key is for your use only. If you no longer have this email please contact orders@fastspring.com and ask for your order fulfilment email to be resent.
For the Steam edition please download and install Steam on your computer. Sign in with your existing credentials and from there you can find any purchased games in your library.
For the Humble Store edition please visit https://www.humblebundle.com/ and sign into your personal account page to access any purchased games. From here you can download them.
If you are having difficulties and purchased from a distributor not detailed above then please let us know which distributer you purchased from and we will help you further.
i did that still did not even get steam key or any key
can you be a bite more specific? what did you try?
i redid what is sed and it sed the link is not valid
can you please contact support@greenheartgames.com and include the link that you are trying to use.