''Lego Brawls'' adalah game pertarungan mobile dengan multiplayer empat pemain vs empat pemain dengan tujuan untuk mengontrol bagian tengah peta hingga warna tim Anda penuh.<ref name=":0" /> ''Lego Brawls'' juga hadir dengan fitur pelatihan dan pesta. ''Lego Brawls'' memungkinkan pemain untuk membuat "pahlawan" mereka sendiri sesuai keinginan mereka dengan senjata dan power-up mereka sendiri.<ref name=":0" /> Saat pemain bermain, pemain akan dihargai dengan peti misteri yang berisi elemen kosmetik atau elemen pertempuran.<ref name=":0" /> Tas misteri kemudian diperkenalkan yang juga dapat memberi hadiah pada karakter dan senjata setelah memainkan sejumlah pertempuran dalam tiga tingkatan, Umum (3), Langka (5) dan Epik (10).
Koleksi karakter [[Minifigur Lego|minifigur]] yang dapat dimainkan didasarkan pada minifigur Lego yang dapat dikenali yang telah dirilis sepanjang sejarah Lego baik sebagai bagian dari set konstruksi Lego, sebagai minifigur yang dapat dikoleksi atau sebagai bagian dari salah satu tema Lego. Minifigur dikelompokkan ke dalam berbagai jenis dan termasuk Luar angkasa klasik, bajak laut, [[Lego cityCity|kota]], [[Lego Castle|kastil]], barang koleksi, [[Lego Ninjago|Ninjago]], [[Lego Hidden Side|Hidden Side]], [[Lego Jurassic World|Jurrasic World]], [[Lego Vidiyo|Vidiyo]] dan [[Lego Monkie Kid|Monkie Kid]].<ref>{{Cite web|last=Yates|first=Jack|url=https://www.brickfanatics.com/the-next-season-of-lego-brawls-is-a-free-for-all/|title=The next season of LEGO Brawls is a free-for-all|website=Brick Fanatics|language=en|date=2021-07-06|access-date=2022-09-23|archive-date=2022-05-26|archive-url=https://web.archive.org/web/20220526180147/https://www.brickfanatics.com/the-next-season-of-lego-brawls-is-a-free-for-all/|url-status=live}}</ref><ref>{{Cite web|last=Yates|first=Jack|url=https://www.brickfanatics.com/dive-into-lego-brawls-with-a-new-ninjago-seabound-update/|title=Dive into LEGO Brawls with a new NINJAGO Seabound update|website=Brick Fanatics|date=2021-08-08|access-date=2022-09-23|archive-date=2022-07-04|archive-url=https://web.archive.org/web/20220704203934/https://www.brickfanatics.com/dive-into-lego-brawls-with-a-new-ninjago-seabound-update/|url-status=live}}</ref><ref>{{Cite web|last=Yates|first=Jack|url=https://www.brickfanatics.com/lego-monkie-kid-continues-legend-lego-brawls/|title=LEGO Monkie Kid continues the legend in LEGO Brawls|website=Brick Fanatics|date=2021-11-07|access-date=2022-09-23|archive-date=2022-07-04|archive-url=https://web.archive.org/web/20220704095826/https://www.brickfanatics.com/lego-monkie-kid-continues-legend-lego-brawls/|url-status=live}}</ref><ref>{{Cite web|last=Yeo|first=Matt|url=https://www.brickfanatics.com/lego-brawls-receives-major-update-the-vault/|title=LEGO Brawls receives major update and opens up The Vault|website=Brick Fanatics|date=2022-01-08|access-date=2022-09-23|archive-date=2022-07-15|archive-url=https://web.archive.org/web/20220715181507/https://www.brickfanatics.com/lego-brawls-receives-major-update-the-vault/|url-status=live}}</ref><ref>{{Cite web|last=Yates|first=Jack|url=https://www.brickfanatics.com/lego-brawls-everything-from-ninjago-to-alien/|title=LEGO Brawls has everything from NINJAGO to Alien Conquest|website=Brick Fanatics|date=2022-05-15|access-date=2022-09-23|archive-date=2022-07-01|archive-url=https://web.archive.org/web/20220701073118/https://www.brickfanatics.com/lego-brawls-everything-from-ninjago-to-alien/|url-status=live}}</ref><ref>{{cite web |url=https://gonintendo.com/contents/21783-lego-brawls-update-adds-dragon-core-mode-and-ninjago-content |title=LEGO Brawls update adds 'Dragon Core' mode and Ninjago content |website=Go Nintendo |date=2023-06-15|access-date=2023-06-16|archive-date=2023-06-16|archive-url=https://web.archive.org/web/20230616100505/https://gonintendo.com/contents/21783-lego-brawls-update-adds-dragon-core-mode-and-ninjago-content |url-status=live}}</ref><ref>{{cite web |url=https://bleedingcool.com/games/lego-ninjago-dragons-rising-arrives-in-lego-brawls/ |title=LEGO Ninjago: Dragons Rising Arrives In LEGO Brawls |website=Bleeding cool |date=2023-06-15 |access-date=2023-06-16|archive-date=2023-06-16|archive-url=https://web.archive.org/web/20230616100505/https://bleedingcool.com/games/lego-ninjago-dragons-rising-arrives-in-lego-brawls/ |url-status=live }}</ref> Tema "Acara" juga tersedia, seperti tema Halloween "Brick or Treat" dan tema Natal "Jingle Brawls".<ref>{{cite web |url=https://www.brickfanatics.com/lego-brawls-brick-or-treat-update-halloween/ |title=LEGO Brawls adds Brick-or-Treat update in time for Halloween |website=Brick Fanatics |date=2022-10-03|access-date=2022-10-04|archive-date=2022-10-04|archive-url=https://web.archive.org/web/20221004094630/https://www.brickfanatics.com/lego-brawls-brick-or-treat-update-halloween/ |url-status=live }}</ref><ref>{{cite web |url=https://www.nintendolife.com/news/2022/11/lego-brawls-to-receive-free-festive-update-this-december |title=LEGO Brawls To Receive Free Festive Update This December |website=Nintendo Life |date=2022-11-30|access-date=2022-12-01|archive-date=2022-12-01|archive-url=https://web.archive.org/web/20221201100124/https://www.nintendolife.com/news/2022/11/lego-brawls-to-receive-free-festive-update-this-december |url-status=live }}</ref> Mode baru bernama "Base Race".<ref>{{cite web |url=http://bricksfanz.com/lego-brawls-adds-base-race-build-mode/ |title=LEGO Brawls Adds Base Race Build Mode |website=Bricksfanz.com |date=2023-03-04|access-date=2023-03-04|archive-date=2023-04-04|archive-url=https://web.archive.org/web/20230404094944/http://bricksfanz.com/lego-brawls-adds-base-race-build-mode/ |url-status=live}}</ref>
