Baldur's Gate 3 Act Two expansion mod slots a whole new chapter between Acts 2 and 3

Modder SquallyDaBeanz released a solo-built custom campaign for Baldur's Gate 3 in beta in mid-September, wedging a brand-new chapter between the RPG's second and third acts. The mod takes your party through a region called The Chionthar Wilds while the Absolute's Army pushes toward Baldur's Gate itself.

SquallyDaBeanz has been explaining the narrative logic behind the detour — the argument being that Act Two's ending leaves just enough breathing room for a side chapter before the final act's stakes kick in fully. The modder says getting sidetracked at that point in the story doesn't feel unnatural, which is the core design goal: making an entirely new chunk of content feel like it belongs rather than bolted on.

Baldur's Gate 3, developed by Larian Studios, shipped in full in August 2023 after an Early Access period and became one of the most celebrated RPGs in years — partly because of how much reactivity and branching its three acts already contain. That foundation makes it fertile ground for modders looking to extend the story rather than just tweak systems.

The mod is still in beta, so expect rough edges, but a solo developer shipping a full custom campaign for a game this complex is a notable achievement regardless of polish level.