Does your game allow overlays?

Riot Games

Kernel driver that boots with Windows and requires Secure Boot on Windows 11. It hunts injected code and vulnerable drivers; plain windows drawn over the game — Discord, Steam, OBS class — are not what it flags.

ValorantLeague of Legends

Epic Games

The most widely deployed kernel anti-cheat. It protects the game process against injection and tampering; separate always-on-top windows are outside its scope and coexist with it in hundreds of titles.

FortniteApex LegendsRustSquadTHE FINALSARC RaidersElden RingLost ArkWar ThunderHunt: Showdown 1896Sea of ThievesRocket LeagueDead by DaylightNew World: Aeternum

BattlEye Innovations

Proactive kernel-level protection used across PUBG, Tarkov, Siege, Destiny 2 and more. It blocks code that hooks the game (ReShade-class injectors can fail to launch); plain overlay windows are unaffected.

PUBG: BattlegroundsEscape from TarkovDayZArma ReforgerRainbow Six Siege XDestiny 2GTA OnlineARK: Survival Ascended

Valve

User-mode, signature- and behavior-based, with delayed ban waves. Trusted mode blocks DLLs injected into the game; it has never targeted windows drawn over the game.

Counter-Strike 2Dota 2Deadlock

Activision

Kernel driver that loads only while a Call of Duty title runs, plus server-side machine learning. Overlay windows in the Discord/OBS class are explicitly tolerated; injection is what it exists to catch.

Call of Duty: WarzoneCall of Duty: Black Ops 7

Electronic Arts

EA’s kernel anti-cheat (Secure Boot required) that loads at Windows boot. Effective against cheats, but 2026 brought documented false-positive “gameplay enhancement” bans on setups running OBS-class overlay software.

Battlefield 6

FACEIT (ESL FACEIT Group)

The strictest mainstream client: a kernel driver with an allowlist mindset. Official builds of OBS and Discord are supported; unrecognized software tends to be blocked from running alongside it rather than banned.

CS2 on FACEIT

Blizzard Entertainment

Blizzard’s two-decade-old user-mode scanner (surfaced as the Defense Matrix initiative in Overwatch 2). It examines the game’s own memory space for known cheats; other windows on your desktop are not its business.

World of WarcraftOverwatch 2Diablo IV

INCA Internet

An aggressive kernel guard best known from Korean MMOs and Helldivers 2. It is notorious for killing overlay hooks and false-positive launch failures — friction, not bans, and plain windows that never hook the game are unaffected.

Helldivers 2

Roblox

A user-mode anti-tamper layer wrapped around the Roblox client. It stops code from being injected into Roblox itself and does not police other windows on the desktop.

Roblox

Tencent

Tencent’s kernel anti-cheat used by Delta Force. Documented to conflict with other kernel software and to keep its services installed after the game is uninstalled; plain overlay windows work, but the driver is famously touchy.

Delta Force

NetEase

NetEase’s in-house protection, used by Marvel Rivals. Community analysis places a kernel component on disk, and there are documented false-positive bans tied to third-party overlay suites.

Marvel Rivals

343 Industries / Halo Studios

Halo Infinite’s proprietary anti-cheat, deliberately built without a kernel driver — detection happens server-side and in user mode. Overlay windows are a non-issue by design.

Halo Infinite

HoYoverse

HoYoverse’s kernel driver, shipped with Genshin Impact. It targets memory tampering in a mostly co-op game; standard overlays and always-on-top windows run alongside it without incident.

Genshin Impact

Various (Jagex, CCP, GGG, Square Enix, Mojang…)

No client-side anti-cheat at all: cheating is judged from behavior on the server. Nothing on your machine watches your windows, so any overlay — including a plain always-on-top terminal — is invisible to it.

Final Fantasy XIVOld School RuneScapeEVE OnlineMinecraftPath of ExilePath of Exile 2The Elder Scrolls OnlineGuild Wars 2