
Frost AntiCheat
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Advanced Anti-Cheat — Detects and prevents common hacks and unfair advantages, keeping gameplay fair and secure
⬇ Download on ModrinthFrostAC is an SMP-focused anti-cheat designed to detect and prevent major combat and movement cheats while keeping false positives as low as possible.
🛡️ Detected & Blocked Cheats
- Fly / Flight — Detects abnormal airborne movement and impossible flight patterns.
- Speed — Detects movement faster than legitimate Minecraft limits.
- NoFall — Detects players bypassing or avoiding legitimate fall damage.
- KillAura — Detects impossible or suspicious automated attacks and abnormal combat behavior.
⚙️ Detection & Protection
- Repeated-strike detection before a player is punished.
- Fly: requires multiple confirmed flags.
- NoFall: requires multiple confirmed flags.
- KillAura: requires multiple confirmed flags.
- Speed: requires continuous abnormal movement.
- Confirmed cheaters are temporarily frozen instead of kicked.
- Players in the air are returned to their last solid ground before being frozen.
- Staff alerts can be enabled/disabled through configuration.
- Flags are logged for further investigation.
🚫 False-Positive Protection
FrostAC automatically ignores or accounts for legitimate situations involving:
- Ladders & Vines
- Scaffolding
- Water & Cobwebs
- Slime & Honey Blocks
- Pistons
- Boats
- Elytra
- Riptide
- Knockback
- Explosions & Wind Charges
- Ender Pearls
- Teleports
- Potion Effects
- Creative/Fly Mode
- Server lag / low TPS
- High player ping
FrostAC is designed specifically for SMP environments and focuses on detecting Fly, Speed, NoFall, and KillAura without interfering with normal Minecraft mechanics.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as FrostAC-2.0.0 (1).jar — drop this file into the mods folder
- Download size: 35 KB
- Download link checked 16 Oct 2026 — working
These come from our own check of the pack file, not from the source page.