Hitbox

Characters in games look detailed, but the computer rarely checks every pixel of a model to see whether a sword or bullet landed. Instead it attaches simple invisible shapes – boxes, capsules or spheres – to each character and attack. When the shape belonging to an attack overlaps the shape belonging to a target, the game counts a hit. Those invisible shapes are hitboxes.

Fighting game players sometimes split the idea in two. A hitbox is the area of an attack that can deal damage, while a hurtbox is the area of a character that can receive it. Many other games use “hitbox” loosely for both.

Why hitboxes cause arguments

Because hitboxes are simplified, they never match the visible character perfectly. A hitbox that is slightly larger than the model can make it feel as though you were struck by an attack that clearly missed; one that is smaller can let shots pass through a shoulder. In online games, network delay adds another layer, since each player’s machine may see positions slightly differently. That is why “the hitboxes are broken” is such a common complaint, and why developers sometimes publish hitbox changes in their patch notes.

In shooters, the head usually has its own hitbox that deals extra damage, which is why aiming high is rewarded. In platformers, generous hitboxes on hazards would feel unfair, so designers often make danger zones slightly smaller than they look.

What this means for new players

If a game feels unfair at first, it may simply be that you have not yet learned where its hitboxes really are. Practice modes and training rooms help you get a feel for reach and timing. It is also worth checking your connection and display settings, as delay can make accurate hitboxes feel wrong.