Nimbus AntiCheat

Nimbus AntiCheat is ranked #6 of 44 in Minecraft anti-cheat plugins on Freedom251. It runs on Self-hosted. There is a free plan.

Nimbus AntiCheat plans and pricing

All plans

Nimbus AntiCheat Free Paper 1.21.8 (compatible forks may work) · Java 21 · PacketEvents required · Java-edition players only spigotmc.org · 29 Sept 2026

Compared on Minecraft anti-cheat plugins

Free plan: Yes
Server platforms: Paper (or compatible fork)
Minecraft versions: 1.21; built and tested against Paper 1.21.8; other 1.21.x builds may work but are untested
Detection coverage: Movement: Speed, Prediction, BunnyHop, Flight, MotionY, HighJump, Step, NoFall, NoSlow, NoWeb, Phase, Jesus, Spider, FastClimb, InventoryMove, Velocity; Combat: KillAura, KillAuraNPC, Reach, AutoClicker, Criticals, HitThroughWalls, InvalidAttack, ClientBrand; World: Scaffold, Tower, Nuker, FastPlace, AirPlace, GhostPlace, BlockReach, PlaceReach, ThroughWallBreak; Packet: Timer, BadPackets, GroundSpoof; Inventory and actions: AutoArmor, ChestStealer, AutoTotem, AutoPotion, AutoFish, FastBow, FastEat
Enforcement actions: Alerts, violation logging, configurable commands, kick, temporary ban, permanent ban, freeze, setback, illegal-action cancellation, Discord notifications
Replay analysis: Yes

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Nimbus AntiCheat

Purpose: Nimbus is a standalone anticheat for Minecraft servers that uses movement prediction and packet inspection to detect cheats.
Detection: The listing describes 43 individually toggleable and tunable checks across movement, combat, world, packet, and inventory categories.
False positive handling: The plugin accounts for latency, server lag, movement buffs, teleports, knockback, flight toggles, and join grace when evaluating checks.
Enforcement defaults: Detection and staff alerts are active by default, while punishments are disabled until configured.
Staff tools: It includes player reports, a staff inspection GUI, in-game check controls, violation logs, and alert and punishment test commands.
Integrations: The listing names PacketEvents as required and PlaceholderAPI, Discord webhooks, Citizens, LiteBans, and LuckPerms or another permissions plugin as optional integrations.
Requirements: Nimbus targets Paper 1.21.x, was built and tested against Paper 1.21.8, requires Java 21 and the standalone PacketEvents plugin, and supports Java-edition players.
Compatibility limit: Bedrock and Geyser players are not supported, and the listing says older versions such as 1.8 and 1.20 are unsupported.
Support: The maker directs bug reports, false positive reports, and feature requests to Discord or the SpigotMC Discussion tab rather than reviews.
Intended users: The setup guidance is for server operators who can observe alerts, calibrate checks, test enforcement, and then enable punishments when ready.
Founded: 2024
Price from: Free

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Where it ranks on Freedom251

Best Minecraft Anti-Cheat Plugins in 2026#6 of 44
Best Minecraft Schematic Tools in 2026#10 of 35
Best Minecraft Permissions Plugins in 2026#5 of 11
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Sources

spigotmc.org/resources/nimbus-anticheat.136631/· checked 29 Sept 2026
spigotmc.org/resources/mrac-skript-ac.116006/· checked 28 Sept 2026