The question is, am i allowed to play more than 1 account? I never read the rules of supermechs because i don't know where they are.
Here's a link to a ToS: http://www.battledawn.com/index.php?p=tos
But if you like to find it by yourself then click on the "HOME" button at the top of the page (to get redirected to http://www.battledawn.com/
And if you don't find the right place from ToS then look for a "8.5 Eligibility" that states:
"You may play Supermechs with Your User Account in and have one mech. You may not create and manage more than one One Mech throught Supermechs, even with multiple User Accounts."
So, in short, you're not allowed to have more than 1 account in SuperMechs.