NovaGuard | AntiCheat v0.87.80

NovaAC is a hybrid anticheat designed for modern Minecraft 1.21+ servers. It combines packet analysis, server-side physics simulation, combat heuristics, Bedrock/Geyser compatibility, replay tools, staff utilities, plugin hiding, and adaptive false-positive filtering.

NovaAC can run as a primary anticheat, but it's also designed to work as a secondary anticheat alongside GrimAC, Vulcan, and others — covering practical gaps like Bedrock checks, staff tools, replay review, inventory inspection, plugin hiding, and moderation utilities.

• Selective Async Processing — heavy validation offloaded off the main thread where possible
• Packet Protocol Validation — PacketEvents + optional ProtocolLib for timing/sequence analysis
• Simulation Engine — movement prediction with environmental tags, velocity/teleport awareness, axis-based uncertainty
• Advanced Reach Compensation — accounts for ping, movement history, knockback, slabs/stairs, liquids, hitbox state, desync risk
• TPS Adaptive Scaling — adjusts detection sensitivity during performance drops
• Hybrid Heuristic Layers — mathematical checks, pattern recognition, trust scoring, Bayesian false-positive filtering
• Visual Replay System — in-game ghost replay for reviewing flagged behavior

Combat

• KillAura — target switching, aim consistency, rotation acceleration, movement correlation
• Reach — interaction distance validation, packet-based historical target position
• Hitbox — ray and bounding box validation for hit alignment
• BackTrack — delayed-hit and target-history abuse detection
• Velocity — horizontal/vertical knockback analysis and percentage classification
• AimAssist — smoothing, acceleration, duplicate look patterns, non-human rotation
• AutoClicker — click interval statistics, variance checks, artificial timing detection
• Criticals — vertical motion and critical hit condition validation
• AutoBlock — automated blocking behavior and timing analysis
• AutoArmor — automated armor equip and fast inventory interaction
• AutoTotem — automated totem swap timing checks
• CrystalAura — End Crystal interaction timing and rapid action detection
• FastEat — item consumption timing validation
• FastBow — bow charge/release timing validation
• InventoryCombat — combat actions during inventory interaction
• MultiAura — concurrent attacks on multiple targets
• WTap — suspicious sprint reset and combat timing
• MaceDMG — mace damage and fall state integrity
• PotionSpoof — potion state and combat effect consistency
• BreakDelay — suspicious combat interaction after block breaking
• AttackCooldown — attack cooldown and hit timing integrity

Movement

• Simulation — server-side movement prediction with environmental handling
• Fly — illegal vertical movement and gravity bypass
• Speed — physics-aware horizontal movement validation
• Blink — packet buffering and burst movement signature detection
• Jesus — illegal movement on liquids
• Scaffold — invalid placement angle and automated building behavior
• Step — illegal vertical transition detection
• FastClimb — ladder/vine climb speed validation
• Phase — movement through solid barriers
• NoClip — collision integrity against solid blocks
• NoSlow — movement validation during item use/inventory interaction
• Timer — client tick rate and timing accumulator validation
• ClickTP — rapid coordinate jump detection
• BadPackets — invalid rotation, packet cadence, attack order, and inventory-state packet validation
• Spider — illegal climbing and wall movement
• NoFall — fall state and ground spoof validation
• Strafe — movement angle and acceleration validation
• GuiMove — movement while inventory/GUI is open
• Elytra — elytra physics and glide behavior
• BoatFly — vehicle vertical movement validation
• BoatSpeed — vehicle horizontal speed validation
• GroundSpoof — invalid client ground state detection
• AntiVoid — suspicious void/fall prevention behavior
• AirJump — jump behavior while airborne
• LongJump — horizontal jump distance validation
• HighJump — vertical jump height validation
• Pathing — suspicious automated pathing behavior
• AntiDisabler — packet sequence and engine integrity protection

Block And World

• Nuker — block break rate and world interaction analysis
• FastBreak — block breaking speed validation
• GhostHand — invalid interaction through barriers
• BlockReach — world interaction distance validation
• FastPlace — rapid block placement validation
• LiquidAirplace — invalid placement involving liquids/unsupported blocks
• Scaffold — automated bridge and placement pattern detection
• TowerBuild — automated vertical building behavior
• Xray — mining pattern and resource behavior detection

Exploit And Misc

• AntiDisabler — packet sequence and engine integrity protection
• Cinematic — non-human camera movement analysis
• Macro — repeated input behavior and timing pattern analysis
• BadPackets — packet ordering, sequencing, and duplication validation
• StatisticalAnomaly — behavioral anomaly scoring
• TickBase — tick timing and action rate validation
• Trust Scoring — player behavior scoring and false-positive reduction
• SimulationDrift — physics simulation deviation tracking

Bedrock Platform

• BedrockKillAura — aim detection adapted for Bedrock rotation/Geyser translation
• BedrockReach — distance validation with Bedrock hitbox compensation
• BedrockAimAssist — smoothing detection for controller/touch aiming
• BedrockAutoClicker — click detection adapted for Bedrock input patterns
• BedrockFly — flight detection adapted for Bedrock physics
• BedrockSpeed — movement speed validation for mobile/console input
• BedrockMovementJitter — Bedrock-specific movement jitter/noise handling

• Integrated Plugin Hider — hides plugin/command info from probing attempts
• Inventory Viewer — real-time inventory and ender chest inspection
• Staff Command Logger — tracks administrative actions
• Replay Support — built-in replay viewer for suspicious behavior
• Anti Lag System — reduces stress from entities, redstone, explosions, heavy activity
• Staff Manager — GUI tools for reports, inspection, logs, moderation
• Punishment System — kick/ban/tempban workflows with configurable banhammer

• /nova — main GUI + subcommands: gui, alerts, reload, spectate, unspectate, reset, info, banhammer, replayaudit, spy (novaac.admin)
• /novaac — alternate admin command
• /banhammer — visual punishment tool (novaac.admin)
• /startspectating [player] — start stealth spectating (novaac.admin)
• /stopspectating — stop spectating (novaac.admin)
• /invsee [player] — view inventory (novaac.admin)
• /ecsee [player] — view ender chest (novaac.admin)

Permissions:

• novaac.admin — full administrative access. Default: op
• novaac.alerts — receive detection alerts. Default: op
• novaac.bypass — bypass all checks. Default: false

1. Secondary Anticheat Friendly — complements larger anticheats with Bedrock support, staff tools, replay review, and plugin hiding
2. Broad Detection Coverage — combat, movement, block, world, exploit, packet, and Bedrock categories
3. Bedrock And Geyser Protection — dedicated support for mobile, console, and translated clients
4. Low TPS Impact Design — heavy validation processed async where possible
5. Staff Focused Tools — GUI tools, spectate, invsee, ecsee, replay review, logs, banhammer
6. Easy Setup — sensible defaults with deeper configuration available

Requirements:

• Java 21 or higher
• Minecraft 1.21.x
• Spigot, Paper, or compatible fork
• PacketEvents 2.7.0+ strongly recommended

Instructions:

1. Place NovaAC.jar in your /plugins folder
2. Install PacketEvents for best accuracy
3. Restart your server
4. Configure optional integrations if needed

• Local Detection And Logging — detection logic, violations, replay data, logs stored locally
• Anonymous Statistics (bStats) — plugin/MC/Java version, server software, OS
• No Personal Data — no personally identifiable information collected
• Opt Out Available — disable anytime in /plugins/bStats/config.yml