Hi there, I'm not sure did you have problem with Google Groups signup or with our signup here? https://carbongames.com/signup.html

To get access to Chrome version you have login with your GoogleID and become member of this Google Group: https://groups.google.com/forum/#!forum/airmech-alpha

After that once you login into Chrome Web Store you'll be able to see this link: https://chrome.google.com/webstore/detail/hdahlabpinmfcemhcb...

If you still have issues, please send email to support@carbongames.com and I'll make sure you get access to the game.