Garry's Mod Ragdoll Physics

Garry's Mod ragdolls come from the Source engine. BioTrauma is an extra addon, not a replacement engine.

Garry's Mod library art
Steam library art for Garry's Mod.

Base game, then the addon

The physics gun and the tool gun are why people open Garry's Mod when they want to pose a body. BioTrauma, workshop item 3788227329 by TheMightyDinky, is a August 2026 bundle aimed at gorier reactions. It is incompatible with gore addons, according to the author. The detail page has the subscribe steps and the argument in the comments.

For posing, start with the base game’s ragdolls and physics gun. For altered damage reactions, open the BioTrauma guide and read its incompatibility notes before subscribing. Start from a small addon set so a conflicting gore addon can be isolated.

Questions people actually ask

Do I need BioTrauma to have ragdolls?

No. The base game already ragdolls NPCs. BioTrauma changes how violent that reaction is.

Keep going

Sources