Sidereus (pronounced as Sih-DEH-reus, Sih-DEH-roos or Sih-deh-ree-us) is a Brazilian-Canadian Smash 4 eSports competitor from Ontario, Canada. He is currently considered the best Lucas player in Michigan and in Canada. Sidereus is currently ranked 2nd on the Windsor Power Rankings and 6th on the Michigan Power Rankings. He has wins over Ryuga, 8BitMan, Nom, THUNDER, Daybreak, LOE1, Runes, smasher1001 and Nebula. He also has had close sets with players like tamim, Ally, Sinji and Blacktwins.
On July 12th, 2018, Sidereus announced his new sponsorship with World of Traveller. He started contributing to the Lucas metagame with Lucas matchup guides as well as his tournament wrap-ups.