Fortnite Locker Guide • 2026 Companion System

Fortnite Sidekicks: Customize, Equip & Use Them

Sidekicks are reactive Locker companions, not combat pets. Learn where they work, which choices become permanent, how Sidekick Points unlock accessories, and how to avoid a bad appearance lock-in.

ALVIRAN Editorial10 min read
Combat powerNone
Physical traitsPermanent after lock-in
Name & accessoriesChange later
Checked againstFortnite SidekicksEpic Sidekick supportVerified July 14, 2026
Quick Answer

A Fortnite Sidekick is a cosmetic companion with no gameplay advantage.

Equip one from Locker → Sidekicks. It follows and reacts to you in supported experiences but cannot deal damage, take damage, reveal enemies, or change your stats. For customizable Sidekicks, physical appearance is chosen once and becomes permanent after LOCK-IN; names and earned accessories can be changed later.

Core System

What Fortnite Sidekicks actually do

Fortnite Sidekicks are animated cosmetics that accompany your character in supported experiences. They notice events around them, react with expressions and movement, and respond to Sidekick Emotes. Their purpose is personality and presentation, not combat performance.

Epic explicitly states that Sidekicks provide no gameplay advantage and do not take damage. An opponent cannot eliminate your companion, and owning one does not add health, aim assistance, inventory space, faster movement, enemy tracking, or any hidden stat.

ReactiveResponds to the match

Animations and expressions make the companion feel present while you play.

CosmeticNo competitive benefit

A Sidekick does not fight, scout, block shots, or influence matchmaking.

Locker itemSaved to the Epic account

The equipped companion is selected from the Sidekicks section of the Locker.

Damage dealt0
Damage taken0
Stat boostNone
Main valueCosmetic identity
Compatibility

Where Sidekicks can follow you in 2026

Sidekicks are designed for several major Fortnite experiences, but they are not displayed in every mode in the same way. Epic lists Battle Royale, Save the World, LEGO Fortnite, Fortnite Festival, and eligible developer-made experiences.

BR
Battle RoyaleFollows and reacts during matches.
STW
Save the WorldAvailable as a cosmetic companion.
LEGO
LEGO FortniteCan accompany you in supported LEGO experiences.
F
Fortnite FestivalYour Sidekick stays backstage.
CR
Creator islandsOnly when the island developer enables Sidekicks.
×
Rocket RacingNot listed as a compatible Sidekick mode.
Creator-island rule: A missing Sidekick on one custom island does not mean the Locker item is broken. The island creator must support the feature.
Locker Path

How to equip a Fortnite Sidekick

Equipping is reversible. The important permanent decision comes later when you lock the physical appearance of a customizable Sidekick.

01
Open the Locker

Use the main Fortnite navigation and enter your Locker.

NavigationFORTNITE → LOCKER
02
Select Sidekicks

Choose the Sidekicks category on the left side of the Locker.

Locker categorySIDEKICKS
03
Open your companion list

Select the displayed Sidekick to view every companion owned by the account.

CollectionOWNED SIDEKICKS
04
Equip the one you want

Confirm the selection, then enter a supported experience.

StatusEQUIPPED
Do not confuse Equip with Lock-In: switching the equipped Sidekick is safe. Holding LOCK-IN during first-time appearance setup finalizes its physical traits.
Permanent Choice

Customize the appearance before you hold Lock-In

Not every Sidekick supports appearance customization. When a Sidekick does, Epic allows the appearance to be customized once after it is obtained. The available controls depend on the companion and may include colors, patterns, eyes, body details, or other physical traits.

After choosing the physical traits, select Next Step, review the preview, and hold Lock-In. That appearance becomes permanent for that copy. Take screenshots or rotate the preview before confirming if the interface allows it; there is no reason to rush a one-time cosmetic choice.

01
Choose every available trait

Check body, pattern, eyes, colors, and distinguishing features.

DecisionPHYSICAL APPEARANCE
02
Select Next Step

If the button is disabled, your combination may duplicate one already owned.

ValidationUNIQUE LOOK REQUIRED
03
Review, then hold Lock-In

This is the permanent step for that Sidekick copy.

Final actionHOLD LOCK-IN
04
Name and finish

Choose a name or use Randomize Name, then finish customization.

FinishNAME → SAVE
SettingCan change later?Important detail
Physical appearanceNo, after Lock-InPermanent for that copy.
NameYesUse the three-dot menu and Rename.
AccessoriesYesSwap available earned accessories.
Equipped SidekickYesChoose another owned companion.
Progression

Sidekick Points unlock companion accessories

Sidekick Points are earned by spending time with the companion. Epic introduced accessories such as hats and hoodies as rewards from this companion progression. These accessories are separate from the permanent physical-trait choice, which means the look can continue to evolve without rewriting the original body customization.

Think of the system in two layers: the locked base appearance defines the companion, while Sidekick Point rewards add changeable presentation on top. Before judging a Locker, check both the owned Sidekick and the accessories already unlocked for it.

Base layerPermanent appearance

The physical combination chosen during initial setup stays with that copy.

Progress layerSidekick Points

Time spent together contributes to companion progression and rewards.

Style layerChangeable accessories

Unlocked hats, hoodies, and similar items can update the presentation.

Ownership Rules

Duplicate Sidekicks are allowed; duplicate appearances are not

Epic allows the same Sidekick to be purchased more than once, but each copy in the Locker must use a unique appearance. If two copies would look identical, the setup cannot be completed. This is why the Next Step button can remain grey even when every visible field appears selected.

To continue, change at least one appearance option or use Randomize until the combination is unique. The rule applies to appearance, not the Sidekick species itself.

How to rename a Sidekick

Open Locker, select the Sidekick, choose the three-dot menu, select Rename, enter a name or use Randomize Name, and save. Epic notes that Sidekicks described as non-customizable may also block name changes. Cabined Accounts receive a curated selection of names instead of unrestricted text entry.

Grey Next Step button: change the appearance combination. Epic identifies an already-owned identical appearance as the reason for this specific state.
Cosmetic Type

A Sidekick is not the same as a Back Bling

A Back Bling attaches directly to an Outfit. A Sidekick is a separate animated companion category with reactions, names, appearance rules, and its own progression. Owning a related Back Bling does not automatically prove that the account owns every companion version.

Epic made one launch exception for Bonesy: players who owned the Bonesy Back Bling were granted the Bonesy Sidekick in November 2025. Treat that as a documented grant, not a universal rule for converting old pet-style Back Blings into Sidekicks.

FeatureSidekickBack Bling
PositionCompanion beside youAttached to the Outfit.
CustomizationMay include permanent traitsUsually fixed styles or selectable styles.
ProgressionSidekick Points and accessoriesNo universal Back Bling progression.
Gameplay powerNoneNone.
Fast Fixes

Fix common Fortnite Sidekick problems

Most Sidekick issues are caused by mode compatibility, a duplicate appearance, a non-customizable companion, or viewing the wrong Epic account. Use the specific symptom instead of repeatedly changing unrelated Locker settings.

Sidekick does not appear on an island

Test Battle Royale first. Developer-made islands must explicitly enable Sidekicks.

Check mode support
Next Step is greyed out

Choose a different physical combination or randomize it; an identical look is already owned.

Make the look unique
Rename option is missing

Check whether the Sidekick description says that its appearance cannot be customized.

Review item restrictions
Owned Sidekick is missing

Confirm the correct Epic account and linked platform before changing links or contacting support.

Verify account identity
Accessories are unavailable

Check Sidekick Point progress and whether that accessory has actually been unlocked.

Check progression
Festival behavior looks different

Epic states that the Sidekick stays backstage in Fortnite Festival.

Expected behavior
Missing Locker content? Follow the dedicated missing Fortnite cosmetics guide before unlinking any console account.
2026 Expansion

Sidekicks can also become NPCs in creator islands

In June 2026, Epic added Sidekicks as scriptable NPCs for Unreal Editor for Fortnite. Creators can use supported companions for following, fetching, fleeing, attacking, reacting, and other designed behaviors. That creator-side NPC can have health, shield, size, and damage settings, but those UEFN controls do not turn the player’s cosmetic Sidekick into a Battle Royale advantage.

Cosmetic Sync can transform an island NPC into the Sidekick equipped by the joining player, including licensed Sidekicks. Epic also notes that licensed companions such as SpongeBob, Itchy, and Super Meat Boy cannot be selected as ordinary creator-side NPC templates, even though Cosmetic Sync can represent the player’s equipped licensed companion.

Search-intent boundary: this guide explains what players see. Device setup, Verse APIs, reaction components, NPC damage configuration, and island publishing belong in a separate UEFN tutorial.
Official Sources

Sidekick rules checked for this guide

Compatibility, permanent customization, duplicate rules, name changes, Sidekick Points, and the 2026 creator expansion were checked against official Fortnite and Epic Games pages on July 14, 2026.

FAQ

Fortnite Sidekicks FAQ

What are Sidekicks in Fortnite?

Sidekicks are friendly cosmetic companions that follow and react to players in supported Fortnite experiences. They do not provide a gameplay advantage and cannot take damage.

Can Fortnite Sidekicks fight or reveal enemies?

No. A player’s cosmetic Sidekick does not attack, scout, reveal enemies, block damage, or improve stats. Creator-made islands can use separate Sidekick NPC behavior, but that does not give the owned cosmetic an advantage in Battle Royale.

Can I change my Sidekick appearance after Lock-In?

No. Epic says the customizable physical appearance is selected once and becomes permanent after Lock-In. Names and available accessories can be changed later.

Why is the Sidekick Next Step button greyed out?

The chosen appearance matches another copy already in the Locker. Change at least one appearance option or use Randomize until the combination is unique.

Can I buy the same Fortnite Sidekick more than once?

Yes. Multiple copies are allowed, but each owned copy must have a unique appearance. Duplicate appearance combinations are not permitted.

Can I rename a Fortnite Sidekick?

Usually yes. Open the Sidekick in the Locker, select the three-dot menu, choose Rename, enter or randomize a name, and save. A Sidekick described as non-customizable may not allow name changes.

Which Fortnite modes support Sidekicks?

Epic lists Battle Royale, Save the World, LEGO Fortnite, Fortnite Festival, and developer-made experiences that enable Sidekicks. In Festival, the Sidekick stays backstage.

Are Fortnite Sidekicks the same as Back Blings?

No. A Sidekick is a separate animated companion category with names, appearance rules, reactions, and progression. Back Blings attach directly to an Outfit.