On 6 October 2017 Flamengo announced the creation if its esports department and its acquisition of the BRCC (Brazilian equivalent of North America and Europe's former challenger series) spot of Merciless Gaming.[1] For its inaugural roster, Flamengo signed top laner Park "Jisu" Jin-cheol,[3] jungler Thúlio "Sirt" Carlos,[4] mid laner Danniel "Evrot" Franco,[5] bot laner Felipe "brTT" Gonçalves, and support Eidi "esA" Yanagimachi.[6] The team debuted in BRCC 2018 Split 1 and finished as runner-ups, qualifying for the BRCC 2018 Split 2 promotion tournament. Flamengo qualified for the CBLoL after defeating Team oNe eSports 3–2 in the "access series" match.[7]
Flamengo finished as runner-ups in the team's first CBLoL appearance, in both the regular season and playoffs after losing 2–3 to KaBuM! e-Sports in the finals. In preparation for the 2019 CBLoL season, Flamengo replaced its entire roster excluding brTT, signing top laner Leonardo "Robo" Souza,[8] jungler Lee "Shrimp" Byeong-hoon, mid laner Bruno "Goku" Miyaguchi,[9] and support Han "Luci" Chang-hoon.[10] The team dominated the regular season of Split 1, losing only a single game to KaBuM.[7] However, in playoffs Flamengo once again fell short, losing to INTZ e-Sports 2–3 in the finals.[7] After placing first once again in the regular season of Split 2, Flamengo managed to defeat INTZ 3–2 to finally win their first CBLoL title.[7] This also qualified the team for play-in stage[11] of the 2019 World Championship.[2][12]
For the 2019 World Championship play-in stage round robin, Flamengo was placed in Group D, along with South Korean team DAMWON Gaming and Turkish team Royal Youth.[13] Despite a good showing against DAMWON Gaming[14] and Royal Youth in the first round robin (the latter of which Flamengo defeated),[15] Flamengo faltered in the second, losing to both teams[16][17] and tying Royal Youth for second in Group D. After losing the tiebreaker match to Royal Youth, Flamengo was eliminated from the tournament.[18]