The September update from Thetan Arena saw the roll-out of a new landing page and a PC Launcher, which is used to launch the game of Thetan Arena and a brand new project dubbed #TheNextThetan. Each user now can receive a new house box, which comes with a 95% chance of dropping a hero, by simply checking in on the new landing page.
As for the process, when visiting the website of Thetan Arena, users will see a pop-up that will direct them to the marketplace, where they can claim the new house box. Other rewards from the box include cosmetics and Power Points.
So without further ado, users can start checking in on the website right away.