NoChance AntiCheat

NoChance AntiCheat

Anti-cheat with trust-based system and 4-layer validation cascade system & packet analysis

3 600 downloads 13 followers

NoChance - Multi-Layer Anti-Cheat

PacketEvents Required for 1.21.x PacketEvents

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


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
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

No gallery available for this project.

Version Minecraft Loader Download

NoChance AntiCheat 1.5.9

1.5.9

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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.7

1.5.7

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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.6

1.5.6

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.5

1.5.5

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.4

1.5.4

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.3

1.5.3

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.2

1.5.2

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.5.1

1.5.1

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.9

1.4.9

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.8

1.4.8

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.6

1.4.6

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.5

1.4.5

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.3

1.4.3

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.2

1.4.2

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.1

1.4.1

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.4.0

1.4.0

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.3.0

1.3.0

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.2.2

1.2.2

1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 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
bukkit, paper, spigot
Download

NoChance AntiCheat 1.2.0

1.2.0

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
bukkit, paper, spigot
Download