Total War: Warhammer 3 looks cool, but one of the interesting features of the original Total Warhammer game was that it had an end-game crisis where multiple hordes of Chaos Warriors would invade the map. Led by Archaon the Everchosen, this late-game event is partly inspired by the infamous 'End Times' storyline that finished off the Warhammer Fantasy tabletop game, though the 'chaos invasion' isn't actually meant to be a direct imitation.
This crisis also features in the 'Mortal Empires' grand campaign mode that owners of both Total Warhammer games can access, although Total War: Warhammer 2's central story arc doesn't feature a similar end-game event. Factions in the second game's campaign either focus on controlling the 'Great Vortex' or have their own self-contained quest line to follow.
Now, though, you can introduce your own big end-game invasions with the help of the recently released Warhammer 2 mod End Game Crises - Beyond the Chaos Invasion. It's currently in beta, but it offers four different crises that can trigger towards the late-game. Its design is inspired by Stellaris - which also features a diverse set of end-game crises - where one is randomly chosen when you start a game.
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