A few Dominions 5 tournaments have been organized in the past years in different communities.

: make pretty tables for the finalists+nations? add some info on tournament structure? link youtube casts from finals

The streamer Lucid organizes an annual tournament, first played in 2020.

The qualifiers for Lucid's Tournament 2022 are ongoing as of May 2022.

The finals of Lucid's Tournament 2021 are still ongoing as of May 2022, with the players: Toolbox as Ulm, Arco as Pelagia, J-PAP as Ind, sqeecoo as Mictlan, Kashtronomical as Bandar Log, Nicknight as Uruk, Isitaris as Jotunheim, Jo Brandon as Pythium, Sy as Pangaea, jachello as Ashdod, coconut as C'tis, Toll as Na'Ba, мєкση as Vanarus, JohnnyJohnny as Agartha, Kris Lighthawk as Vanheim and Stonetroll as Xibalba.

Lucid's Tournament 2020 was won by Arco as Ys. Other finalists were: Timotej as Pythium, sqeecoo as Jotunheim, Txoumin as Ind, KoboldLord as Vanarus, nivrik as Bandar Log, keraunograph as Atlantis, Saquenay as Ulm, Gaslov as Vanheim, Jake as C'tis and Choksny as Na'Ba.

An anonymous tournament organized by JohnnyJohnny. The qualifyiers had 128(?) players split into 8 games. The finals are yet to take place, as of May 2022.

The streamer Maerlande has organized a 1v1 duelling tournament that is currently ongoing as of May 2022.