Halo Campaign Evolved skulls and where to find them

4 weeks ago 14

Updated Jul 30, 2026, 1:04 PM EDT

LASO awaits

Skulls are collectibles in Halo: Campaign Evolved that can be used to modify your playthrough. There are a grand total of 42 skulls and 39 of them are hidden throughout the game's 13 levels. The other three are unlocked automatically once you find two skulls. 26 of these are legacy skulls, aka skulls that have featured in the Halo series before, while the remaining 16 are brand-new skulls. You'll need to collect all skulls to tackle the famous LASO (Legendary All Skulls On) challenge, and if you want to earn the Headhunter achievement/trophy.

Here are all the skulls in Halo: Campaign Evolved and where to find them, broken down by level, along with an explainer on what skulls actually are and the full list of available skulls.

Update (July 30): We've updated this guide with the locations of every skull in Halo: Campaign Evolved.

All skull locations in Halo: Campaign Evolved

Each level in Halo: Campaign Evolved has three hidden skulls to collect (and one terminal). Follow the links to each individual level below to learn where they are:

Halo: Campaign Evolved skulls list

Skulls in Halo: Campaign Evolved are essentially gameplay modifiers. Some grant buffs, while others make the game considerably tougher. Meanwhile, others are there for pure comedic purposes. You can enable any skulls you've unlocked before starting a new campaign or specific mission from the level select option.

Here is the full list of skulls in Halo: Campaign Evolved alongside their description:

Skull name Description

Acrophobia	The Corps: Now issue rifles AND wings...
Adaptation	Randomizes the enemy factions present in the mission.
Angry	Enemies fire their weapons faster and more frequently.
Armistice	Enemy factions never fight one another.
Bandana	Infinite ammo and grenades.
Black Eye	Your shields will only recharge when you melee enemies.
Blind	HUD and Weapons do not appear onscreen.
Boom	Explosion radius is increased by 2x.
Catch	Enemies throw and drop more grenades.
Cowbell	Physics mass of objects is reduced, making them more easily displaced.
Efficient	Enemies killed while the player is at full health drop more ammo.
Endurance Spec	UNSC vehicles cannot be damaged.
Eye Patch	All auto-aim is disabled for all weapons.
Famine	Weapons dropped by enemies contain half the ammo.
Floor is Lava	Take continuous damage whenever touching the "ground".
Fog	Motion Tracker is disabled.
Foreign	Players cannot use weapons from another faction.
Ghost	Enemies no longer flinch when taking fire.
Give & Take	Firing your weapon drains your shield, but dealing damage to enemies recharges it.
Grunt Birthday Party	Grunt headshots produce legendary celebrations.
Grunt Funeral	Grunts die in a blaze of plasma.
Hip Fire	All weapon zoom functionality is disabled.
Iron	Dying in co-op resets you to your last checkpoint; dying while solo restarts the level.
IWHBYD	It would have been your dialogue.
Johnny Ammo Seed	When reloading you lose the ammo remaining in the discarded clip.
Leadhead	Headshots no longer provide extra damage or instant kills.
Magnified	60-round magazines for the AR are now standard-issue.
Malfunction	Upon respawn a random element of your HUD no longer appears.
Mythic	Enemies have increased health.
Perspective	Changes the player camera to third-person.
Piñata	Punching enemies makes them drop inert grenades.
Pop	Shooting Flood in their weak point causes them to explode.
Recession	Every shot expends twice the normal amount of ammo.
Reload	Randomizes the pre-placed weapons for the mission.
Speed Limit	Take your time, enjoy the sights! Disables sprint.
Stowed Reload	Weapons continue to reload while stowed.
Temperamental	Allies will attack the player more quickly if the player kills a friendly.
That's Just... Wrong	Enemies have increased awareness of the player.
They Come Back	Flood Combat Forms reanimated by Infection Forms are much more dangerous.
Thunderstorm	Upgrades the rank of most enemies.
Tilt	Enhances both positive and negative damage multipliers. Example: Plasma does more damage against shields, but less damage against health.
Tough Luck	Enemies always go berserk, constantly dive out of the way, and never run away from a fight.