Compare Back 4 Blood - Expansion 2: Children of the Worm (DLC) prices across trusted key stores and find the best deal. Developed by Turtle Rock Studios. Published by Warner Bros. Interactive Entertainment. Released on 10/12/2021. Available on Xbox Series X, Xbox One, Xbox. Genres: Action. Metacritic score: 77/100.

If the first Back 4 Blood expansion left you cold, Children of the Worm is the course correction that actually delivers new campaign missions, a genuinely fun new Cleaner, and enemies that will make you rethink your card build on the fly.

My first run through Children of the Worm took about two hours, and I walked away thinking: this is what the base game's DLC roadmap should have looked like from the start. The second expansion for Turtle Rock's co-op shooter ditches the first expansion's shallow rogue-lite side content in favour of a proper new act - Act 5 - split across six missions that take you through a shipyard, a prison block, and tunnel corridors crawling with a brand-new enemy faction called the Cultists. These are not your standard shambling Ridden. They retain human intelligence, carry ranged weapons, and hit your squad from angles the base game rarely bothered with. The four new enemy types - Slashers with iron claws who close distance fast, Crones who rain arrows from range, Pusflingers lobbing toxic jars, and armored Sniper variants - force genuine build adaptation in a way the first expansion never did. If you've settled into a comfortable card deck for the base campaign, Act 5 will punish passivity. The new playable Cleaner, Prophet Dan, is a highlight: an Irish-accented preacher with abilities built around buffing teammates on revive, which slots well into squad play and gives card-builders something fresh to optimize around. The new melee claw weapons are ridiculous in the best way - leaning into a melee-heavy card build and tearing through a horde with them is one of the more satisfying moments the game has produced. Not everything lands. The Duffel Bag loot system introduced in Act 5 is the expansion's clearest stumble: rewards are randomized, can only be earned by carrying bags to safehouses, and there is no alternative path to unlocking the new cards and cosmetics they contain. Players chasing specific cards will grind repeated runs and still come up short. Bear traps scattered aggressively through the levels add tension at first but tip into irritation by the second playthrough, especially since enemy AI ignores them entirely. The final mission is also a weak close to an otherwise decent act - short, low-stakes, and undercutting the momentum built earlier. The controller aim issues that dogged Back 4 Blood at launch are still present here on console, and the mission objective design leans on familiar fetch-and-hold structures without adding much that feels genuinely new. At roughly two hours for a single run, the content ceiling is low for solo players who do not plan to replay on higher difficulties. The value equation shifts considerably if you have a regular co-op group willing to run the act multiple times with different Cleaner builds - that is clearly the intended use case, and it works. One notable upside: only one person in a party needs to own the expansion for the whole group to access Act 5, which is a sensible policy. Children of the Worm will not convince anyone who bounced off Back 4 Blood's base game to come back. But for players still invested in the co-op loop who felt let down by Tunnels of Terror, it is a genuine step forward - new enemies with tactical teeth, a Cleaner worth building around, and enough chaos in the firefights to keep a squad loud on voice chat. Alex, Scout Team

Back 4 Blood - Expansion 2: Children of the Worm (DLC)

Back 4 Blood - Expansion 2: Children of the Worm (DLC)

Oct 12, 2021Turtle Rock StudiosWarner Bros. Interactive Entertainment
GamerScout Says

If the first Back 4 Blood expansion left you cold, Children of the Worm is the course correction that actually delivers new campaign missions, a genuinely fun new Cleaner, and enemies that will make you rethink your card build on the fly.

Xbox Series XXbox OneXbox
Steam Deck PlayableProtonDB Gold
Best Price Available
€1.57
at Eneba
Lowest tracked: €1.46
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GamerScout Verdict

Worth it for active co-op squads who want fresh Act content and new enemy types to build around - solo one-and-done players will find it thin.

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€1.57
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Price History

Lowest tracked
€1.467 Sept 2026
Current best
€1.57
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About Back 4 Blood - Expansion 2: Children of the Worm (DLC)

My first run through Children of the Worm took about two hours, and I walked away thinking: this is what the base game's DLC roadmap should have looked like from the start. The second expansion for Turtle Rock's co-op shooter ditches the first expansion's shallow rogue-lite side content in favour of a proper new act - Act 5 - split across six missions that take you through a shipyard, a prison block, and tunnel corridors crawling with a brand-new enemy faction called the Cultists. These are not your standard shambling Ridden. They retain human intelligence, carry ranged weapons, and hit your squad from angles the base game rarely bothered with. The four new enemy types - Slashers with iron claws who close distance fast, Crones who rain arrows from range, Pusflingers lobbing toxic jars, and armored Sniper variants - force genuine build adaptation in a way the first expansion never did. If you've settled into a comfortable card deck for the base campaign, Act 5 will punish passivity. The new playable Cleaner, Prophet Dan, is a highlight: an Irish-accented preacher with abilities built around buffing teammates on revive, which slots well into squad play and gives card-builders something fresh to optimize around. The new melee claw weapons are ridiculous in the best way - leaning into a melee-heavy card build and tearing through a horde with them is one of the more satisfying moments the game has produced. Not everything lands. The Duffel Bag loot system introduced in Act 5 is the expansion's clearest stumble: rewards are randomized, can only be earned by carrying bags to safehouses, and there is no alternative path to unlocking the new cards and cosmetics they contain. Players chasing specific cards will grind repeated runs and still come up short. Bear traps scattered aggressively through the levels add tension at first but tip into irritation by the second playthrough, especially since enemy AI ignores them entirely. The final mission is also a weak close to an otherwise decent act - short, low-stakes, and undercutting the momentum built earlier. The controller aim issues that dogged Back 4 Blood at launch are still present here on console, and the mission objective design leans on familiar fetch-and-hold structures without adding much that feels genuinely new. At roughly two hours for a single run, the content ceiling is low for solo players who do not plan to replay on higher difficulties. The value equation shifts considerably if you have a regular co-op group willing to run the act multiple times with different Cleaner builds - that is clearly the intended use case, and it works. One notable upside: only one person in a party needs to own the expansion for the whole group to access Act 5, which is a sensible policy. Children of the Worm will not convince anyone who bounced off Back 4 Blood's base game to come back. But for players still invested in the co-op loop who felt let down by Tunnels of Terror, it is a genuine step forward - new enemies with tactical teeth, a Cleaner worth building around, and enough chaos in the firefights to keep a squad loud on voice chat.

Alex
Alex · Scout Team

Catch-all

Tags

xboxCo-op DLCNew CleanerCultist EnemiesMelee BuildsCard Deck StrategyAct ExpansionDifficulty SpikesLoot RNGShort Campaign

System Requirements

Minimum

OS
64-bit Windows 10
Processor
Intel Core i5-6600 (3.3 GHz) OR AMD Ryzen 5 2600 (3.4 GHz)
Memory
8 GB RAM
Graphics
NVIDIA GeForce GTX 1050 Ti OR AMD Rade…

Recommended

OS
64-bit Windows 10
Processor
Intel Core i5-8400 (2.8 GHz) OR AMD Ryzen 7 1800X (3.6 GHz)
Memory
12 GB RAM
Graphics
NVIDIA GeForce GTX 970 OR AMD Ra…

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Community Discussion

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Reviews & Ratings

Metacritic
77
Steam
69%(72,552)

Game Info

Developer
Turtle Rock Studios
Publisher
Warner Bros. Interactive Entertainment
Release Date
Oct 12, 2021

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Frequently asked questions about Back 4 Blood - Expansion 2: Children of the Worm (DLC)

How much does Back 4 Blood - Expansion 2: Children of the Worm (DLC) cost?

As of 7 September 2026, the cheapest in-stock offer for Back 4 Blood - Expansion 2: Children of the Worm (DLC) is €1.57 at Eneba, out of 1 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Back 4 Blood - Expansion 2: Children of the Worm (DLC) cheapest?

The lowest in-stock price we track for Back 4 Blood - Expansion 2: Children of the Worm (DLC) is €1.57 at Eneba (7 September 2026). We compare 1 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Back 4 Blood - Expansion 2: Children of the Worm (DLC) available on?

Back 4 Blood - Expansion 2: Children of the Worm (DLC) is available on Xbox Series X, Xbox One, Xbox.

When was Back 4 Blood - Expansion 2: Children of the Worm (DLC) released?

Back 4 Blood - Expansion 2: Children of the Worm (DLC) was released on 12 October 2021.

Who developed Back 4 Blood - Expansion 2: Children of the Worm (DLC)?

Back 4 Blood - Expansion 2: Children of the Worm (DLC) was developed by Turtle Rock Studios and published by Warner Bros. Interactive Entertainment.

Is Back 4 Blood - Expansion 2: Children of the Worm (DLC) worth buying?

Back 4 Blood - Expansion 2: Children of the Worm (DLC) holds a Metacritic score of 77/100, making it one of the standout Action titles. See the full reviews, ratings and how-long-to-beat times on this page to decide.