Collision Damage
by fonnymunkey
Collision Damage reworks how a player takes harm from hitting a block at speed, applying damage based on sudden negative acceleration.
What it does
Normally Minecraft only lets a player who is wearing an Elytra take damage from flying into a wall. This Forge mod extends that behavior to every player: a sudden drop in speed when striking a block is converted into damage. Two config values set when the damage starts, the speed threshold above which a hit begins to hurt, and a multiplier that scales the damage beyond that point.
An optional toggle routes the collision damage through the fall damage system instead, so enchantments and effects that reduce fall damage, such as Feather Falling, also reduce collision damage. The toggle is off by default. The mod is intended to pair with movement and mobility mods such as grappling hook and dodge mods, and with high-speed effects from enchantments and potions. It runs on client and server, so the server and every player need it, and it is published for Forge 1.12.2 only, with version 1.2.2 as the latest file from 2023-03-17. Source code and the issue tracker are public, and the mod is open source under the MIT License.
Key features
Acceleration-based damage
Damage is calculated from the sudden negative acceleration a player experiences when hitting a block.
Adjustable threshold
A config option sets how fast the player must hit a wall before collision damage begins.
Damage multiplier
A second config option scales the damage above the threshold, so server owners can tune severity.
Fall damage mode
An optional toggle applies collision damage through the fall damage path, which lets fall-damage reducers affect it.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Pairing with movement mods
Players using grappling hooks or dodge mods at high speed can face collision damage when a fast movement ends in a wall.
Modded speed effects
Enchantments and potions that raise player speed make the collision damage more noticeable.
Who it’s for: Server owners and modpack makers who want speed to carry a real cost in collisions, and players who use fast movement mods on Forge 1.12.2.
Questions
Does Collision Damage need to be installed on the server?
Does Feather Falling reduce collision damage?
Which Minecraft versions does Collision Damage support?
In the catalog
Collision Damage is one of 3,932 Transportation mods on ModsFinder, and one of 1,908 Transportation mods for Forge. 2,920 mods support Minecraft 1.12.2.
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What the author says
Fairly simple mod that adds acceleration-based collision damage. Normally this exists in Minecraft, except it only works when the player is wearing an Elytra and they fly into a wall. This mod reworks the calculations and applies it to the player, damaging them when there is a large sudden negative acceleration while…
Official listing
- Modrinth page
- modrinth.com/mod/collision-damage
- Owner
- fonnymunkey
- Published
- 2022-09-07
- Updated on Modrinth
- 2023-03-17
- Facts verified
- 2026-10-15