Warhammer 40,000: Dawn of War II - Chaos Rising

Chaos Rising is a standalone expansion to Dawn of War II, meaning you do not need the base game installed to play it, though importing your Blood Ravens save is strongly recommended. The core loop is unchanged from DoW2: you command a small squad of elite Space Marines across individual tactical missions, managing cover, cooldowns, and wargear with no base-building involved. Think Diablo-paced squad combat filtered through a 40K lens, not a traditional grand-strategy title. The campaign is set one year after the Tyranid invasion, with the frozen homeworld of Aurelia returning from the Warp and bringing the Black Legion with it. If you skipped the base game, Chaos Rising starts you at level 18 with a pre-equipped squad and lets you distribute levelling points freely, so the barrier to entry is lower than you would expect. The headline addition is the Corruption system, and it is the mechanical reason this expansion holds up better than the original campaign. Each squad member (except the Dreadnought Davian Thule) carries a morality meter running across seven levels from fully pure to completely lost to the Dark Gods. Actions during missions shift that meter: letting Imperial Guardsmen die, using tainted wargear, or skipping a squad member's personal mission all add Corruption points. Corrupt characters unlock genuinely powerful offensive abilities and can equip high-stat Corrupted gear, while Redemption gear imposes active combat penalties as penance, making the righteous path legitimately harder. Hit 24 Corruption points and a character is locked out of redemption permanently. The traitor in your ranks is determined by who carries the most Corruption at the campaign's end, and the game has multiple endings tied to your Force Commander's final standing. That is a lot of decision-weight packed into a relatively short campaign. New hero Jonah Orion, the Librarian, is the other major addition worth your time. His build is driven by psychic tomes and relics, with each new trait unlocking a slot for a specific piece of wargear rather than a generic stat bump. The Tome of Wrath grants Smite, the Staff of Jove makes the lightning chain between targets, and the Warp Vortex AoE can clear multiple infantry squads in seconds. He is the strongest support pick in co-op, where a second player controls two squads, freeing you to micromanage his ability rotations. The Black Legion enemies themselves play differently from the Tyranid swarms in the base game: slower and more durable, including Bloodletters with flame-swords and the demonic cavalry unit Bloodcrushers, plus Chaos Sorcerers and Plague Champions in multiplayer. Mission design is noticeably more varied than in the base game, with multi-objective missions that chain kill-and-capture sequences into defensive holdouts rather than repeating the same corridor-march-and-boss format. The weaknesses are real but predictable. The campaign runs around a dozen missions and can be cleared in a weekend, which is short even for an expansion. Veterans may find the default difficulty comfortable once squad synergies click into place, particularly if Jonah is abused as a damage dealer rather than support. Multiplayer is functionally dead at this point, and the Last Stand survival co-op mode, while revitalized by the two new heroes (Chaos Sorcerer and Tyranid Hive Tyrant with their respective ability sets), is limited to a single map. The replayability that does exist comes from running full Corruption and full Purity playthroughs back to back, which the morality system actively rewards with different traitor reveals and endings. For anyone already invested in DoW2 lore and mechanics, Chaos Rising is the version of that game that fixes its own criticisms. For newcomers, start here if you must, but consider picking up the base game alongside it to access all four original multiplayer factions. Diego, Scout Team