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Criticals makes all your attacks deal critical hit damage by manipulating packets or movement. Critical hits deal 50% more damage, making this module essential for PvP.

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Overview

In Minecraft, critical hits occur when you attack while falling. Criticals simulates this condition through various methods, forcing the server to register your attacks as critical hits.

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Features

  • Multiple modes - Different bypass methods for various servers
  • Smart delay - Configurable cooldown between crits
  • Sprint handling - Automatically manages sprint state
  • Crystal-aware - Doesn’t trigger on crystal attacks
  • KillAura integration - Optional KillAura-only mode

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Critical Hit Mechanics

A critical hit requires:
  • Player is falling (not on ground)
  • Player is not sprinting
  • Not attacking an end crystal
  • Not in water or lava
  • Not flying (creative/elytra)
Criticals satisfies these conditions automatically.

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Configuration

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mode
select
default:"Packet"
Critical hit method
  • Packet - Sends fake fall packets (most common)
  • Strict - More precise packet values
  • Jump - Physically jumps for each attack
  • MiniJump - Small hop for each attack
  • Grim - GrimAC bypass method
  • GrimV2 - Improved GrimAC bypass
  • GrimCC - GrimAC crawl-based bypass
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delay
number
default:"250"
Minimum time between critical attacks in milliseconds (250-1500)
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onlyAura
boolean
default:"false"
Only apply criticals when KillAura is active (Only Aura)

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Mode Breakdown

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Packet Mode

Sends two position packets indicating a small fall: 
1. Position + 0.0625 blocks up, onGround=false
2. Position, onGround=false
Best for: Most vanilla and lightly protected servers

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Strict Mode

Uses precise falling motion values: 
1. Position + 1.1E-7 blocks up, onGround=false
2. Position + 1.0E-8 blocks up, onGround=false
3. Position, onGround=true
Best for: Servers with strict movement checks

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Jump Mode

Physically makes your player jump for each attack. Pros:
  • Most legit method
  • Never detected by anti-cheat
  • Works on all servers
Cons:
  • Obvious to other players
  • Slower attack rate
  • Affects movement
Best for: Legit play or strict anti-cheat

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MiniJump Mode

Applies small vertical velocity (0.3425) without full jump. Best for: Semi-legit play with less obvious movement

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Grim Mode

Special packet sequence for GrimAC: 
1. Position + 0.0625 blocks up, onGround=false
2. Position + 0.04535 blocks up, onGround=false
Requires being clipped in a block or taking velocity. Best for: GrimAC servers (when velocity system active)

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GrimV2 Mode

Sends position slightly below current position: 
Position - 0.0001 blocks down, onGround=false
Only works when airborne. Best for: GrimAC servers with movement prediction

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GrimCC Mode

Exploits crawl mechanics: 
1. Position + 0.0625, onGround=false
2. Position + 0.0625013579, onGround=false
3. Position + 1.3579e-6, onGround=false
Requires head to be inside a block (crawling). Best for: GrimAC servers when crawling

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Usage

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Basic Setup

  1. Enable Criticals from Combat category
  2. Select appropriate mode for your server
  3. Set delay based on your attack speed
  4. Test in safe environment

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Mode Selection Guide

Vanilla/Anarchy Servers:
  • Use: Packet mode
  • Delay: 250ms
NoCheatPlus Servers:
  • Use: Strict mode
  • Delay: 300-500ms
GrimAC Servers:
  • Use: GrimV2 or GrimCC
  • Delay: 500-1000ms
  • May require specific conditions
Legit Play:
  • Use: Jump mode
  • Delay: 250ms
  • Most obvious but undetectable

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Delay Configuration

The delay prevents spam and reduces anti-cheat detection:
  • 250ms - Default, good balance
  • 500ms - Conservative, safer
  • 1000ms+ - Very safe, slower attacks
Lower delays = faster crits but more likely to be detected. Higher delays = safer but slower DPS.

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Sprint Management

Criticals automatically handles sprinting:
  1. Detects if you’re sprinting when attacking
  2. Sends stop sprinting packet
  3. Performs critical attack
  4. Resumes sprinting
This happens automatically - no configuration needed.

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Integration

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KillAura Integration

When Only Aura is enabled:
  • Criticals only applies to KillAura attacks
  • Manual attacks won’t be critical
  • Useful for separating automation from manual play

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32k Detection

Criticals automatically disables for 32k weapons (weapons with very high sharpness enchantments) since they don’t benefit from critical hits.

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Crystal Attacks

Criticals never triggers on end crystal attacks - critical hits don’t apply to crystals.

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Conditions & Limitations

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When Criticals Won’t Work

  • In water or lava - Game mechanics prevent crits
  • Flying (creative mode) - Can’t be falling while flying
  • Flying (elytra) - Same reason
  • Holding 32k weapon - Disabled automatically
  • Attacking crystals - Crits don’t apply to crystals
  • Delay not passed - Must wait between attacks

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GrimAC Mode Requirements

Grim mode requires:
  • Being clipped in a block, OR
  • Recently took velocity/explosion damage
Use canGrimCrit flag to check if conditions are met. GrimCC mode requires:
  • Head inside a block (crawling state)
The module checks isHeadBlocked() before applying.

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Technical Details

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Packet Interception

Criticals intercepts PlayerInteractEntityC2SPacket (attack packets) and injects position packets before them: 
@SubscribeEvent
public void onPacket(PacketEvent.Send event)
{
    if (event.getPacket() instanceof PlayerInteractEntityC2SPacket packet)
    {
        // Insert crit packets here
    }
}

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Velocity Tracking

For Grim mode, tracks when velocity is received:
  • Monitors EntityVelocityUpdateS2CPacket
  • Monitors ExplosionS2CPacket
  • Sets canGrimCrit flag when detected
  • Resets on death or server disconnect

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Ground State

Strict mode sends a final packet with onGround=true to reset server-side state: 
PacketManager.INSTANCE.sendPacket(
    new PlayerMoveC2SPacket.PositionAndOnGround(
        mc.player.getX(), 
        mc.player.getY(), 
        mc.player.getZ(), 
        true
    )
);

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Common Issues

  • Check if delay has passed (default 250ms between crits)
  • Verify you’re on ground when attacking
  • Ensure you’re not in water/lava
  • Try different mode for your server
  • Check if attacking crystals (crits don’t apply)
  • Switch to Strict mode
  • Increase delay to 500-1000ms
  • Try Jump mode for most legit method
  • Your server may have strict anti-cheat
  • Grim mode: Requires taking velocity first or being clipped
  • GrimV2 mode: Only works when airborne
  • GrimCC mode: Requires crawling (head in block)
  • Check console for canGrimCrit status
  • Delay might be too low, increase it
  • Server lag can affect timing
  • Some modes require specific conditions
  • Try Packet or Strict mode for consistency

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Strategy Tips

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Maximum DPS

  • Mode: Packet
  • Delay: 250ms
  • Only Aura: Disabled

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Legit Appearance

  • Mode: Jump or MiniJump
  • Delay: 500ms
  • Only Aura: Enabled

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Anti-Cheat Bypass

  • Mode: Strict or appropriate Grim variant
  • Delay: 500-1000ms
  • Only Aura: Depends on preference
Combine with KillAura and AutoTotem for a powerful automated combat setup.

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Source Code Reference

Location: src/main/java/me/skitttyy/kami/impl/features/modules/combat/Criticals.java:31 Module category: Combat Module name: “Criticals” Description: “Criticals: Makes all ur attacks critical hits!” HUD info: Displays current mode

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