FallProtection

FallProtection prevents fall damage by placing a block beneath the player before impact. It is functionally similar to AntiFall in the Player category, but the implementation approach is different: FallProtection uses block placement rather than packet manipulation.

Category

World

Type

Fall damage prevention

Supported clients

Wurst, Meteor, LiquidBounce, Boze

Minecraft versions

All 1.21.x

Detection risk

Moderate to high

Last checked

2026-09-24

What it does

FallProtection monitors the player's fall distance and velocity. When a landing is imminent, it selects a block from the hotbar and places it directly below the player. Configurable options:

• Trigger distance — fall distance required to activate.
• Block type — which hotbar slot to use.
• Anti-void — activate below a certain Y level.

Client support

Server compatibility

• Hypixel — Restricted. Placement timing is validated.
• 2b2t — Permitted. No anti-cheat active.
• CubeCraft — Restricted. Sentinel validates placement.

Detection behavior

FallProtection is detectable because:

• Placement timing. Placing a block in the exact tick before landing is unusual.
• Rotation inconsistency. Vanilla requires facing a block to place it; FallProtection may place without rotation.
• Landing without damage. Fall damage absence after a large fall is a strong signal.

Packet-based AntiFall (in the Player category) is often less detectable than block-placement FallProtection because it does not produce placement packets.

Known limitations

• Requires blocks in inventory; without material FallProtection does nothing.
• Server lag can cause placement to miss the timing window.
• Anti-void protection is often blocked by servers that detect void placements.

Related modules

• AntiFall — packet-based fall damage prevention.
• Scaffold — automatic bridging.
• Fly — airborne movement.
• Speed — faster movement.