2XKO

2XKO is a free-to-play 2v2 fighting game developed by Riot Games and built around champions from League of Legends and Arcane. Players choose two fighters and can control both themselves or team up with another player, with tag attacks and assists forming the core of combat. The roster includes characters such as Ahri, Ekko, Jinx, Vi, Yasuo and Warwick, each reworked with fighting-game-specific moves and combos. Fuses modify team mechanics, allowing different approaches to assists, tagging and offensive pressure. 2XKO supports casual and ranked online play, cross-platform multiplayer and rollback netcode. Riot has announced that active development will end in December 2026, although the game will remain playable and its online servers are planned to stay available afterward.