What is a Wallhack?
A wallhack is a category of video-game cheat that allows the player to see enemies, items, or other game-state elements through solid geometry such as walls, terrain, and objects. Wallhacks are implemented either as visibility-checked ESP that highlights enemies even when occluded, or by modifying the game's wall material shaders to render walls transparent. Wallhacks are one of the oldest cheat types, dating to Quake 2 chams in the late 1990s.
"Wallhack" is the slang term for see-through-walls vision in competitive games, and it's the most intuitive cheat for non-players to understand — the player knows where the enemy is even when the enemy thinks they're hidden. It overlaps heavily with ESP, and in 2026 cheat menus the two terms are mostly used interchangeably, but the implementation paths are different enough to warrant separate explanation.
The two implementation paths
Path one is visibility-checked ESP: the cheat reads enemy world-space positions, projects them to screen space, and draws a box or outline regardless of whether the engine itself can see that enemy from the player's perspective. This is the dominant modern implementation because it composes cleanly with the rest of the ESP feature set and survives most rendering scenarios. Path two is shader/material modification: the cheat hooks the engine's material system and forces wall meshes to render with alpha transparency, or with a depth-bias flag that draws them behind everything else. The Source engine chams of the 2000s worked this way. Material modification fell out of favor as engines tightened their rendering pipelines, and most modern competitive titles using Unreal Engine 5 or in-house engines make this approach unstable.
Variants and feature surface
A modern wallhack typically supports:
- Through-wall coloring — different colors for enemies in line-of-sight vs occluded
- Chams — colored material overlay on enemy models so they pop against environment
- Asuswall / model transparency — wall transparency originating from Counter-Strike 1.6 asuswall texture trick, now mostly emulated through material hooks
- Glow / outline — engine-level outline shader applied to enemy actors (Unreal Engine games make this trivial)
- Bone-aware box draw — boxes that follow the enemy skeleton through walls so a wall doesn't clip the rectangle
How anti-cheats detect wallhacks
Wallhack detection follows the same playbook as ESP detection: process scans, render hook scans, behavioral analysis of player pre-aim and pre-engagement patterns, and replay review of suspect kills. Vanguard's ELAM driver-level scans catch unauthorized Direct3D hooks before the game even renders a frame. Easy Anti-Cheat scans for known overlay window classes and unauthorized graphics-API detours. Behaviorally, a player who consistently swings wide pre-aiming a corner where the enemy is actually camping — repeatedly, across many rounds — gets flagged for replay review by Riot, Activision Ricochet, and Anybrain. The clearest tell is shooting through walls at perfect head height of a target the player should not be aware of.
Wallhacks in the broader cheat stack
Wallhacks are typically the entry-level setting for legit-style cheating because they don't act on the input. A player using only a visibility-checked ESP still has to peek, pre-aim, and shoot themselves — meaning their mouse traces are real and replay reviewers can't easily prove cheating from the gameplay alone. Combined with a tuned humanized aimbot, wallhacks form the "everyone uses these and gets away with it if they're disciplined" middle band of the legit cheat spectrum. Pair this with our HWID spoofer pillar and you have the operational baseline most paying customers run.
2026 detection landscape
Wallhack detection in 2026 leans heavily on behavioral telemetry. Activision Ricochet, Anybrain, and Riot Vanguard all publish that the bulk of their cheat-detection bans come from replay-driven flagging rather than client-side signature hits. This means tuning matters more than vendor in 2026 — using a wallhack without overusing pre-aim through walls is the actual safety practice. For game-specific tuning guidance see how to configure ESP/wallhack and our Fortnite cheats pillar.
Related Pages
Sources
- About Easy Anti-Cheat — Epic Games
- Riot Competitive Integrity Update — Riot Games
- Direct3D 11 Graphics Reference — Microsoft Learn
Related Questions
ESP (Extra Sensory Perception) is a category of video-game cheat that overlays information about enemies, items, and game state onto the player's screen that the game would not normally reveal. Typical ESP features include 2D bounding boxes around enemy players, skeleton bones, health bars, distance text, weapon names, loot rarity highlights, and line-of-sight indicators. ESP is rendered either by hooking the game's render pipeline or by drawing through an external overlay.
A radar hack is a category of video-game cheat that displays the real-time positions of all enemies on a 2D mini-map overlay regardless of whether those enemies would normally be visible on the in-game radar. Radar hacks read enemy world-space coordinates from the game's entity list and plot them onto either the existing mini-map or a separate top-down overlay. They are popular in tactical shooters (Counter-Strike, PUBG, Tarkov) where map awareness is the primary skill.
Anti-cheats detect ESP and wallhacks primarily through three techniques: signature scanning for known rendering hooks and Direct3D/Vulkan overlays, behavioral analysis correlating player movement and pre-aim with information they "shouldn't have," and server-side fog-of-war culling where the server only sends visible-player data to each client. The 2026 trend is heavy server-side culling — Fortnite, Valorant, and Apex now send only client-visible player coordinates, making memory-read ESP less informative.
Open the menu with INSERT, navigate to Visuals or ESP, enable Player Boxes, Skeleton, and Health Bar, set Max Distance to 200-300 meters depending on the game, and enable Visibility Color so visible enemies render one color and occluded enemies another. Avoid loud overlays like neon green skeletons or 1000m render distance — replay reviewers catch obvious ESP usage. Disable Item ESP entirely in tournament-tier games. Save to a config slot.
An aimbot is a video-game cheat that automatically aims the player's weapon at enemies by reading game memory to locate enemy positions, calculating the angle from the player's camera to the target, and writing or simulating the input needed to snap or smooth the crosshair onto that target. Aimbots range from "rage" full-snap variants used openly to "legit" humanized variants that mimic real player flicks. They are the most common and most heavily detected category of FPS cheat.
