Brittleness is a debuff in Darktide that causes affected enemies to take increased damage from all sources. It's a key mechanic for enhancing team damage output, especially against tougher foes.
Core Mechanics of Brittleness
When an enemy is afflicted with Brittleness, its resistance to damage is effectively lowered. This means all incoming attacks, whether melee, ranged, or ability-based, will deal more damage than they normally would to that specific target.
- Application: Brittleness is typically applied via specific weapon blessings (e.g., "Brutal Momentum" after a weak spot kill, "Thrust" on certain weapons after a fully charged hit) or certain class feats/abilities. For instance, some Ogryn talents can apply or enhance Brittleness.
- Damage Increase: The debuff increases the damage taken by a percentage. The exact percentage can vary based on the source of the Brittleness (e.g., the tier of a weapon blessing).
- Stacking: Depending on the source, Brittleness effects can sometimes stack, either in intensity (increasing the damage vulnerability further) or by refreshing the duration with subsequent applications. Check specific blessing or ability descriptions for details on stacking.
- Duration: Brittleness is usually a temporary effect, lasting for a few seconds. This encourages focused fire on the debuffed target to maximize its utility.
Strategic Value
Elite and Boss Takedowns: Applying Brittleness to high-priority targets like Crushers, Maulers, Reapers, Scab Captains, and Monstrosities significantly speeds up their elimination. This is crucial in higher difficulties where enemy health and resilience are greatly increased.

Team Synergy: Since the damage amplification benefits the entire team, a player capable of consistently applying Brittleness provides a substantial force multiplier. It allows the whole squad to conserve ammunition and reduce time-to-kill on dangerous enemies.
Enhanced Damage Types: Brittleness applies universally, meaning it boosts damage from explosions, direct hits, weak spot hits, and damage-over-time effects alike, making it a versatile debuff.
While there isn't always a highly distinct universal visual effect for Brittleness itself across all sources (unlike some other status effects), its impact is noticeable through significantly higher damage numbers appearing on afflicted targets and their faster demise.