In Divinity: Original Sin 2, combat is one of many components that make up a sprawling role-playing epic. But in Divinity: Fallen Heroes, that very same combat system is firmly in the spotlight; the game, like XCOM, is a series of challenging combat missions featuring tactical objectives that must be achieved using the abilities and spells of a crack team of god-like heroes, amusingly known as the Apocalypse Squad (Divinity's Terry Pratchett-like edge is definitely still here).
It's a design that makes perfect sense; Original Sin 2 has the most intricate and ambitious combat system of any RPG you could care to name, and so to build a new game upon it seems only natural. If you're unfamiliar with Divinity's turn-based combat engine, it's a complex, unforgiving tinder box of elements that are in constant war with each other. If you stab a soldier they'll bleed, and that pool of blood can then be frozen into a slippery trap that'll trip over anyone who steps across it, knocking them out cold. Amazingly, that's just a simple example.
