NoChance AntiCheat

Minecraft 版本： 1.21 1.21.1 1.21.2 1.21.3 1.21.4 1.21.5 1.21.6 1.21.7 1.21.8 1.21.9 1.21.10 1.21.11

平台： bukkit paper spigot

标签： management optimization utility

NoChance - Multi-Layer Anti-Cheat

PacketEvents Required for 1.21.x
PacketEvents

Note: Plugin can work without it but it may cause problems

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Description

NoChance is a anti-cheat with a 4-layer validation cascade system and also with packet-level detection. Designed to catch cheaters while minimizing false positives through trust scoring, adaptive sampling, and statistical analysis.

Features

• 18 Detection Modules - Fly, Speed, KillAura, FastBreak, Reach, NoClip, Jesus, Blink, Timer, and more
• 4-Layer Validation System - Multi-stage verification to eliminate false positives
• PacketEvents Integration - Deep packet analysis for advanced cheat detection (1.21-1.21.8 support)
• Trust Score System - Players build trust over time, reducing false flags for legitimate skilled players
• In-Game GUI Configuration - Edit all settings via interactive menu, no file editing needed
• Database Support - SQLite & MySQL support with HikariCP connection pooling for optimal performance
• Staff Alerts - Real-time notifications with customizable thresholds and alert throttling
• Discord Webhooks - Send violation alerts directly to Discord with rich embeds
• Punishment System - Automatic kicks, warnings, and configurable actions
• Per-Check Configuration - Fine-tune every detection module independently
• Server Optimizations - Adaptive sampling, async processing, and batch operations

Commands

• /nochance menu - Open configuration GUI
• /nochance reload - Reload configuration
• /nochance info - View player statistics
• /nochance violations - View violation history
• /nochance reset - Reset player data
• /nochance toggle - Enable/disable specific check
• /nochance stats - View global statistics
• /nochance alerts - Toggle staff alerts

Aliases: /nc, /ac, /anticheat

Permissions

• nochance.admin - Access to all NoChance commands (default: op)
• nochance.alerts - Receive staff alert notifications (default: op)
• nochance.bypass - Bypass ALL anti-cheat checks (default: false)
• nochance.bypass. - Bypass specific check (default: false)

Individual Check Bypasses

• nochance.bypass.fly
• nochance.bypass.speed
• nochance.bypass.noclip
• nochance.bypass.jesus
• nochance.bypass.fastbreak
• nochance.bypass.fastplace
• nochance.bypass.nuker
• nochance.bypass.killaura
• nochance.bypass.nofall
• nochance.bypass.autoclicker
• nochance.bypass.reach
• nochance.bypass.inventory
• nochance.bypass.scaffold
• nochance.bypass.timer
• nochance.bypass.velocity
• nochance.bypass.criticals
• nochance.bypass.phase
• nochance.bypass.step
• nochance.bypass.blink

Default Config Preview

Click to view config.yml ```yaml general: time_window_seconds: 60 grace_period_seconds: 5 min_samples: 5 op_exempt: true notify_player_on_flag: true thresholds: low_confidence: 0.70 medium_confidence: 0.85 high_confidence: 0.95 extreme_confidence: 0.98 advanced_filtering: enabled: true bayesian_prior: 0.05 z_score_threshold: 2.5 min_trust_score: 0.3 established_baseline_checks: 50 established_baseline_time_seconds: 60 actions: kick_on_extreme_confidence: true kick_on_high_confidence: false warn_on_high_confidence: true warn_on_medium_confidence: true log_low_confidence: true statistical: std_dev_multiplier: 3.0 outlier_forgiveness: 3 performance: async_thread_pool_size: 4 database_max_pool_size: 10 database_min_idle: 2 database_connection_timeout_ms: 30000 database_idle_timeout_ms: 600000 database_max_lifetime_ms: 1800000 database_batch_size: 50 database_batch_interval_ms: 500 adaptive_sampling_enabled: true adaptive_sampling_warmup_checks: 100 advanced_analysis_warmup_checks: 100 advanced_analysis_strict_threshold: 500 checks: fly: enabled: true threshold: 4 severity_multiplier: 2.2 max_velocity_y: 0.52 speed: enabled: true threshold: 5 severity_multiplier: 2.8 max_speed: 0.36 sprint_multiplier: 1.32 ice_multiplier: 2.6 killaura: enabled: true threshold: 4 severity_multiplier: 3.4 max_reach: 3.2 max_angle: 48.0 max_rotation_speed: 650.0 max_cps: 17.0 cps_trusted_bonus: 2.0 cps_untrusted_penalty: 2.0 instant_flag_cps_over: 6.0 angle_trusted_bonus: 8.0 angle_untrusted_penalty: 5.0 instant_flag_angle_over: 18.0 rotation_trusted_bonus: 60.0 rotation_untrusted_penalty: 50.0 instant_flag_rotation_over: 140.0 rotation_variance_threshold: 40.0 rotation_variance_strict: 20.0 required_violations: 2 packet_variance_threshold: 25.0 packet_variance_strict: 12.0 packet_attack_rate_limit: 22 fastbreak: enabled: true threshold: 10 severity_multiplier: 1.8 min_check_interval_ms: 25 max_rapid_checks: 15 trust_score_bonus: true require_multiple_systems: true base_tolerance_ms: 50 percentage_tolerance: 0.10 shovel_instant_tolerance_ms: 45 shovel_instant_percentage: 0.25 hand_instant_tolerance_ms: 28 hand_instant_percentage: 0.18 trust_bonus_instant_ms: 15 trust_bonus_normal_ms: 50 database: type: SQLITE host: localhost port: 3306 database: nochance username: root password: password table_prefix: nc_ discord: enabled: false webhook_url: "" skill_profiles: low: max_cps: 9 min_cps: 4 max_rotation_speed: 220 min_rotation_speed: 120 max_accuracy: 0.52 min_accuracy: 0.30 medium: max_cps: 14 min_cps: 9 max_rotation_speed: 380 min_rotation_speed: 220 max_accuracy: 0.72 min_accuracy: 0.52 high: max_cps: 22 min_cps: 14 max_rotation_speed: 650 min_rotation_speed: 380 max_accuracy: 0.88 min_accuracy: 0.72 ```

Detection Modules

• Movement: Fly, Speed, NoClip, Jesus, Blink
• Block Interaction: FastBreak, FastPlace, Nuker, Scaffold
• Combat: KillAura, AutoClicker, Reach
• Other Checks: NoFall, Velocity, Criticals, Timer, Phase, Step
• Inventory: Inventory Movement Detection

Previews