XGuardian: Towards Explainable and Generalized AI Anti-Cheat on FPS Games

Fuente: arXiv
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Main Authors: Zhang, Jiayi, Sun, Chenxin, Qian, Chenxiong
Format: Preprint
Published: 2026
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author Zhang, Jiayi
Sun, Chenxin
Qian, Chenxiong
author_facet Zhang, Jiayi
Sun, Chenxin
Qian, Chenxiong
contents Aim-assist cheats are the most prevalent and infamous form of cheating in First-Person Shooter (FPS) games, which help cheaters illegally reveal the opponent's location and auto-aim and shoot, and thereby pose significant threats to the game industry. Although a considerable research effort has been made to automatically detect aim-assist cheats, existing works suffer from unreliable frameworks, limited generalizability, high overhead, low detection performance, and a lack of explainability of detection results. In this paper, we propose XGuardian, a server-side generalized and explainable system for detecting aim-assist cheats to overcome these limitations. It requires only two raw data inputs, pitch and yaw, which are all FPS games' must-haves, to construct novel temporal features and describe aim trajectories, which are essential for distinguishing cheaters and normal players. XGuardian is evaluated with the latest mainstream FPS game CS2, and validates its generalizability with another two different games. It achieves high detection performance and low overhead compared to prior works across different games with real-world and large-scale datasets, demonstrating wide generalizability and high effectiveness. It is able to justify its predictions and thereby shorten the ban cycle. We make XGuardian as well as our datasets publicly available.
format Preprint
id arxiv_https___arxiv_org_abs_2601_18068
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle XGuardian: Towards Explainable and Generalized AI Anti-Cheat on FPS Games
Zhang, Jiayi
Sun, Chenxin
Qian, Chenxiong
Cryptography and Security
Machine Learning
Aim-assist cheats are the most prevalent and infamous form of cheating in First-Person Shooter (FPS) games, which help cheaters illegally reveal the opponent's location and auto-aim and shoot, and thereby pose significant threats to the game industry. Although a considerable research effort has been made to automatically detect aim-assist cheats, existing works suffer from unreliable frameworks, limited generalizability, high overhead, low detection performance, and a lack of explainability of detection results. In this paper, we propose XGuardian, a server-side generalized and explainable system for detecting aim-assist cheats to overcome these limitations. It requires only two raw data inputs, pitch and yaw, which are all FPS games' must-haves, to construct novel temporal features and describe aim trajectories, which are essential for distinguishing cheaters and normal players. XGuardian is evaluated with the latest mainstream FPS game CS2, and validates its generalizability with another two different games. It achieves high detection performance and low overhead compared to prior works across different games with real-world and large-scale datasets, demonstrating wide generalizability and high effectiveness. It is able to justify its predictions and thereby shorten the ban cycle. We make XGuardian as well as our datasets publicly available.
title XGuardian: Towards Explainable and Generalized AI Anti-Cheat on FPS Games
topic Cryptography and Security
Machine Learning
url https://arxiv.org/abs/2601.18068