Fortnite: Battle Royale doesn't have a monopoly on pop-culture crossover events in the gaming world, even if it often feels like that. While Epic Games seemingly swoops in to accept just about any cross promotion deal from big properties, some IPs are still up for grabs - and Activision hasn't been slacking off.

Call of Duty: Warzone isn't in a great place right now, having lost over 50 million players in a year. The publisher is mostly pointing fingers at Vanguard's poor performance, but the game has been struggling with a few underlying issues for much longer.

With Warzone 2 slated for an early 2023 release, hot on the heels of this year's November release of Modern Warfare 2 from fan favorite developer Infinity Ward, whether or not Warzone needs saving is a valid question in and of itself. The sequel accelerating the game back to the top of the boards is practically a guarantee at this point, being attached to a new Modern Warfare title.

That said, Warzone in its current shape still has at least a Season 4 to go before the switchover, and we don't imagine servers will get axed immediately upon Warzone 2's launch - so here are a selection of pop culture crossovers that just might bring players back to Caldera.