Mark of chaos is a very clean experience focused on the rpg/strategy and management of warhammer fantasy armies. The campaign is engaging and you don't waste turns like in WHTW simply micromanaging rebels. Every battle brings something new to the table, and the story is full of twists and turns.
This is probably one of the best rpg, strategy, turn-based, adventure games ever created. It has scenarios for people who want a lot of challenge and for those who wish to have a more laid back experience. It has 8 factions to play and one weird one they added in an expansion, these are : Castle, Rampart, Tower, Stronghold, Fortress, Dungeon, Inferno, Necropolis, and the added Conflux. The game takes base on a world map were you control heroes and towns. A hero can move every day and combat enemy units to collect resources and artifacts which can be equipped and the resources can be spent on either special buildings you can find on the map such as the tree of knowledge that costs 2000 gold or 10 gems to level up a hero, or it can be spent on upgrading your towns to provide new units and to upgrade units into their second "form". Each town has a mages guild which can be upgraded up to level 5 and it provides heroes with the required experience and traits spells. Along with resource you also gain levels which give you access to new traits sem-randomly. Castle are the human faction with griffons, knights and angels who excel at fighting Inferno's Devils. Rampart are the nature loving creatures such as elves, dwarves, unicorns and Green dragons. Tower are the wizards race as they gain 1 more spell per level of mages guild and they get units from gremlins, genies to titans. Stronghold is the orcish race with units such as goblins, ogres, rocs, and behemoths. Dungeon as the name describes are the underground creatures such troglydites, Blackdragons and they include medusas who can turn enemies to stone. Inferno are the demons who have units from hellhounds and genies to devils. Necropolis are the undead and they have the ability to bring back the dead after the battle as skeletons. Their units range from zombies to black knights and bone dragons. Conflux is a messed up faction that has all the elemental units which used to be neutral units with pixies and a phoenix.