COWMODSКаталог модов

NoChance AntiCheat

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

Автор: TheeCobra3,6 тыс.13обновлён 16 мая 2026 г.
Скачать 1.5.9Все версии (19)
УправлениеОптимизацияУтилиты

Описание

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

Последние версии

Все версии →
release

NoChance AntiCheat 1.5.9

1.5.9
16 мая 2026 г.1,3 тыс.Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
- New Double Check: flags are confirmed before any alert or punishment, so a one-off false flag never bans. - Fewer false positives after knockback, the movement checks no longer mistake getting hit for Fly or Speed - Players with /fly or creative flight are no longer false-flagged during flight transitions - Filtered-out flags no longer inflate the confidence of later ones - Fixed an offense being counted twice in the violation buffer - Dashboard now applies per-check toggles, severity, thresholds and actions that were silently ignored before - Added 9 missing checks to the panel - Fixed a rare error when a Speed potion ran out mid-check
release

NoChance AntiCheat 1.5.7

1.5.7
2 мая 2026 г.144Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
- Step check now honors the config threshold; step cheats actually reach the flag chain - Fly detection catches sustained vertical motion via pure-trajectory physics, not just per-tick deviation - Fly violations no longer mislabel as Speed when vertical motion is the anomaly - Speed check holds back during sustained airborne motion so Fly flags first - KillAura instant-CPS, impossible-CPS, and suprahuman-reaction paths now require multiple matching events, fewer false bans on skilled clickers - AutoClicker autocorrelation requires two consecutive detections; jitter ceiling raised to 18 CPS - New rotation-snap-attack detection catches killaura that snaps onto target right before attacking - New cross-metric correlation catches slow-mode killaura that trips multiple metrics under thresholds - Bot-pattern aim checks (GCD, smooth aim, no-acceleration) now require a corroborating anomaly signal, fewer false positives on skilled mouse users - Reach marginal hits require two in four seconds; knockback, damage and Punch grace widened; high-ping bonus extended above 250ms - ElytraFly config keys (max_speed, threshold, firework boost duration) now actually take effect
release

NoChance AntiCheat 1.5.6

1.5.6
26 апр. 2026 г.126Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
**Less false flags** - Bouncing on slime/honey blocks - Sprinting up stairs and slabs - Speed/Jump Boost potions wearing off - Levitation, Slow Falling, and Riptide ending - Knockback no longer pads NoFall distance - Criticals with Feather Falling boots - Fly hover when stepping or jumping off blocks - NoClip violations no longer stick after one false trigger - Phase corner re-entry can't slip through silently **Catches more cheats** - LiquidBounce fly/speed modules (Hypixel, Vulcan, Matrix, Verus, AirWalk) - FastBreak: catches cheats on the first block, no warm-up needed - FastBreak: also catches "just-faster-than-vanilla" mining over 7-9 blocks - Subtle timer abuse (1.02-1.04x) - AutoClicker bot patterns held over 30 seconds - AimAssist micro-corrections and snap aim - KillAura while mob farming, and single-axis-extreme angles - Boat Fly and Elytra hover tightened - FastPlace stricter at high ping - Anti-knockback (Velocity) stricter, including vertical - Sustained slow-drip Speed cheats (1.5%+ over the limit) - Movement physics deviations spotted faster - Lava walking with Fire Resistance - Combat aim prediction on predictable targets - Malformed packet attempts are tracked, not swallowed - NoClip stricter at high ping - Ground spoof on descending stairs no longer free **Setback** - Faster reset (350ms) - On by default for Fly, Speed, Step, NoClip, Jesus, Phase, Spider, GroundSpoof, NoSlow, Strider, BoatFly, Strafe - Velocity and fall distance reset on teleport - Use **ALL** in setback.types to cover every violation
release

NoChance AntiCheat 1.5.5

1.5.5
25 апр. 2026 г.25Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
**Fixes** - Fewer false flags on **killaura rotation**, **protocol**, **groundspoof** - **Killaura rotation** no longer flags PvE / mob combat **New** - **Setback** action: tp flagged players to last legit spot - **Custom command** action: run any console cmd on flag, per confidence - **op_detect_only**: ops/bypass log but no punish - **Horizontal-fly** detector (off by default, still tuning) **Tweaks** - Tighter **killaura**: rotation valve closed, cooldown gate dropped - More checks exempt **bedrock**, **gliders**, **swimmers**, **post-teleport** - Plugin updates auto-merge new config keys into your existing **config.yml**
release

NoChance AntiCheat 1.5.4

1.5.4
24 апр. 2026 г.38Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
- All detection checks now run on every player movement - cheats can no longer exploit skip windows between checks - Removed internal sampling that was skipping up to 80% of checks for players with no recent flags - Plugin uses all available server resources - no artificial caps on processing threads or database connections - Detection thresholds retuned across every check to keep false positives low at the faster check rate - Violations and punishments write to the database immediately (previously delayed up to 500ms)
release

NoChance AntiCheat 1.5.3

1.5.3
23 апр. 2026 г.25Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
- Smarter AI that learns from your Cheat and Legit labels to cut false bans - Servers stay linked even if you clear cookies, just sign in to keep them - Tap Cheat or Legit on any recent flag to train the AI - Bigger settings page with AI, replay, ping and per-check sliders - Dashboard syncs instantly after pairing instead of waiting
release

NoChance AntiCheat 1.5.2

1.5.2
21 апр. 2026 г.45Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
*AI assist, accounts, bigger dashboard* - New AI layer on every flag, nudges confidence up or down from kNN and online logistic regression trained on your labels - New AI live feed, see each decision with verdict, neighbour dots, agreement bar, probability donut - New Learned weights panel, shows which features the AI trusts per check - New mass-FP detector, proposes suppression rules you approve with one click - New account system, one login for forums and the dashboard - New pairing flow, requires a free account so servers survive cookie clears - Already signed in? Pair auto-links to your account, nothing else to click - Existing browser-only servers auto-merge into your account the moment you sign in - Recovery codes issued at pair time as a backup - Flags now carry 30+ features, a replay window and a session summary - Settings page gained AI, FP filter, Replay, Ping compensation, Bedrock, per-check severity sliders - Hourly chart now shows am/pm at 6h intervals - Account reminder banner for browser-only paired servers - New config paths: `ai.enabled`, `ai.max_adjustment`, `ai.min_agreement`, `ai.verdict_ttl_seconds`, `ai.send_features`
release

NoChance AntiCheat 1.5.1

1.5.1
19 апр. 2026 г.29Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
Language fixes, more elytra fixes, dashboard polish - New force_server_language option, makes everyone see the server's chosen language instead of their own client locale - GUI menus, item names and lores now actually translate - Replay viewer, staff alerts, web pair messages and join notices now translate too - Jesus, NoClip packet check and Protocol check stop firing during elytra flight - Firework rocket use is now tracked so every check sees the boost grace window - Run now button on the dashboard analytics page, triggers auto-tune against current FP history on demand
release

NoChance AntiCheat 1.4.9

1.4.9
19 апр. 2026 г.30Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
- Fixed dashboard showing "Waiting for plugin to sync settings" on server start and after `/nc reload` - Fixed stats resetting to zero after a plugin restart — totals now persist - Fixed web-issued kick, ban, warn and unban not being counted in telemetry - Fixed false positive flags being dropped when alerts were throttled - Fixed pairing wiping itself on a single network blip — now tolerates 5 failures in a row - Fixed pair code being fire-and-forget — plugin now retries transient errors - Fixed old pair codes lingering when a new one is issued - Fixed dashboard preview failing if the plugin was slow to reach us - Fixed mismatched code expiry between plugin (5 min) and website (was 10 min) - Fixed admin password change not actually applying — now saves through the panel without env var edits
release

NoChance AntiCheat 1.4.8

1.4.8
19 апр. 2026 г.18Minecraft: 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, 1.21.11bukkit, paper, spigot
Скачать
Что нового
> **Important — delete your old `config.yml` before updating.** A new `web` section is added in this release. Delete `plugins/NoChance/config.yml` and restart so the new file is generated. Your `data.db` is untouched. ## Web Dashboard - New command `/nc web` pairs your server with the dashboard at nochance-ac.com - Manage punishments, settings and players from any browser - Minecraft head avatars for linked staff and online players - Freeze, kick, warn and ban directly from the player list - Rich broadcast editor with color codes, live preview and presets ## Detection Feedback - Mark flags as confirmed cheating or false positives from the dashboard - Precision and calibration per check — see what's over-flagging at a glance - Tuning suggestions appear when a check runs too loose or too strict - 24-hour activity chart and CSV export ## Detection Tuning - Long falls and jumps from high places no longer false flag - Walking or running down hills and staircases is clean - Grass, flowers, ferns and crops no longer trigger nuker or fast break - New players get a longer settle-in window after joining - Better handling for high ping, TPS drops and chunk loading ## PvP Improvements - 180° snap turns and jump attacks play nicely with kill aura checks - Fighting grouped or clumped enemies no longer trips multi aura - Sweaty clickers and drag clickers get fair treatment - Sprint hits with wide FOV clients are respected ## Cheat Client Detection - Fingerprint system rewritten for higher accuracy - Ping aware timing checks reduce network noise flags - Rhythm analysis distinguishes bots from fast legit clicking ## Admin GUI - Clicking a check in any category menu opens its config - Toggle, threshold and severity changes refresh instantly - Save Changes reopens the menu so edits are visible right away ## Stability - Flag scoring capped to prevent stacked multipliers from snowballing - Punishment decay is a bit faster for a cleaner slate - Extreme confidence threshold now behaves as advertised ## New Permission - `nochance.web` — allows `/nc web` pairing (default: op)