What changed for Chaos Space Marines in 11th edition

11th edition handed the Chaos Space Marines a large roster and a mixed pass rather than a sweeping cut. A handful of centrepieces and characters climbed — the Defiler took a steep +50 hike — while a chunk of the range, especially the flyers and daemon-engines, came down. If you played the Traitor Legions in 10th, most of your collection still fights the same way; what shifts is which pieces now look like bargains and which cost a premium.

Summary

• 27 units repriced, 2 new, 31 unchanged
• Biggest drop: Mutilators (-35)
• Biggest rise: Defiler (+50)
• Detachment Points: 2 / 3 / 4 at Incursion / Strike Force / Onslaught

Detachments

The headline mechanical change is Detachment Points. Detachments are no longer free: each one now costs points out of your army total, scaling with game size — 2 at Incursion, 3 at Strike Force, 4 at Onslaught. That's a fresh budgeting decision layered on top of your unit choices, and it's the single biggest thing to relearn coming from 10th. For Chaos Space Marines two new detachments join the intact 10th-edition line-up — Devotees of Destruction and Murdertalon Raiders — with none removed, so on top of them the only new overhead is that flat DP cost.

New in 11th: Devotees of Destruction, Murdertalon Raiders. None removed.

Points changes

Twenty units were repriced — six up, nine down — and two brand-new characters joined the roster. The rises are led by the Defiler, up a hefty 50 points, with a couple of characters climbing behind it. The drops are broader and land where you'd want them: the Heldrake fell 30, the Mutilators 20, and several daemon-engines and infantry squads shaved points off. Some units are priced per squad size, so check the tier you actually field before you total up.

Biggest increases

Are Defiler still worth it?

The single biggest increase in the faction, up 50 points to 300. That's a real tax on a walker that was already a considered pick rather than an auto-include. It's still a striking centrepiece, and if you buy your models because you want them stomping across the table, the extra 50 won't stop you. But if the Defiler was only earning its slot on efficiency, this is the nudge to look at the cheaper daemon-engines instead.

Are Vashtorr the Arkifane still worth it?

Up 30 points to 205, a chunky jump on a named character. Vashtorr has always been a specialist pick that rewards a list built around him rather than a splash inclusion, so the answer hinges on how much you're leaning into his support role. In a force designed to make use of him he still holds his place; as a one-off drop-in, the new price makes him easier to leave in the case.

Are Masters of the Maelstrom still worth it?

Up 20 points at their five-model squad, from 115 to 135. That's a noticeable bump for an elite unit, though not the kind that rewrites a list on its own. They remain a characterful, high-impact option, and 20 points won't be the sole reason you run them or not — but it does mean they need to earn their keep more clearly than they did at the end of 10th.

Frequently asked questions

Did the Chaos Space Marines get better in 11th edition?

It's a mixed bag rather than a clean upgrade. More units dropped than rose (nine down against six up), so plenty of lists can field a little more for the same points, but the increases landed on some visible centrepieces like the Defiler. Whether that nets out as stronger depends on which parts of the range your army leans on and how the wider meta settles.

What got cheaper for Chaos Space Marines in 11th edition?

Several of the standouts. The Heldrake came down 30 points, the Mutilators dropped 20, and the Forgefiend shaved off 10 — good news for daemon-engine and flyer lists. On the infantry side, Chaos Spawn and Fellgor Beastmen each fell 10 at their squad sizes, making those units easier to slot in.

How do Detachment Points work for Chaos Space Marines in 11th edition?

Detachment Points are a new 11th-edition layer: your chosen detachment now costs points out of your army total, scaling with game size — 2 at Incursion, 3 at Strike Force, and 4 at Onslaught. Every Chaos Space Marines detachment pays the same rate, so it's a flat overhead you budget for before you start picking units, with none of the 10th-edition detachments removed.

Why did the Defiler go up 50 points in 11th edition?

The Defiler's +50 is the faction's steepest single rise, moving it from 250 to 300. Increases that large usually signal a unit that was over-delivering for its cost, and it stands out sharply against the daemon-engines around it — the Forgefiend and Heldrake both got cheaper. Two entirely new characters also arrive to broaden the roster: the Sorcerous Champion at 80 points and the Soul Forge Tyrant at 160.

Is now a good time to start a Chaos Space Marines army?

It's a fair moment. The range is stable, several key units got cheaper, and the two new characters give you fresh options at either end of the cost curve. The Defiler aside, most of the price movement runs in a starter's favour, so a first Chaos Space Marines force is easier to build toward than it was late in 10th — see the Starting a Chaos Space Marines Army guide for a buying order.