Riot Games has been rather tight-lipped about how its animated series, Arcane, connects to the wider League of Legends world of lore. Thankfully, this has finally been put to bed in a confirmed statement from one of Riot's own.
Taking to X, League of Legends executive producer Riot Brightmoon, stated: "Arcane and League are part of the same Runeterra canon. Not everything is perfectly aligned and we'll address that slowly over time".
<social>https://twitter.com/RiotBrightmoon/status/1712535989649027378</social>
Riot is currently working on a second season of Arcane, so no doubt this means that in the follow-up episodes there will be a better degree of continuity between the show and the game's lore. Likewise, no doubt further steps will be taken in the game's development to create a more coherent narrative overall.