Hello
I'd like to make a suggestion for a tournament and/or organized play for the game Soldat. Soldat is a free to play, multiplayer side scroller that's an absolute blast to play. It has several modes, such as TDM, CTF or Deathmatch. It's easy to play and only takes a few minutes to learn. I'd love to get a few games of this in at the LAN even if it's not an official thing!
https://www.soldat.pl/en/