Rattlesnake was formed in January 2013 by LaNm, Luo, Kabu, Icy, and Fan. Fan was later replaced by SagM.
In August 2013, Kabu left the team. LaNm also left to join DK.
In September 2013, All Beauty Must Die and JoHnNy joined the team. Later that month, Rattlesnake picked up international squad Kaipi as their second team, with members EternaLEnVy, pieliedie, bOne7, SingSing and Aui_2000. The team will be moving to China in December 2013.
In October 2013, the organization decided to change the name of their international squad to Speed Gaming.int in order to establish a better identity. The whole organization will be transitioning to the new name after the conclusion of the ACE Dota 2 League.