| Game/Homebrew | Developer | Similarity to GMod | Playable on PSP? | | :--- | :--- | :--- | :--- | | | PSP-Homebrew community | High (Ragdolls, thrusters) | Yes (CFW Required) | | Garry's Mod Demake | Various (unfinished) | Medium (Prop spawning only) | Yes (Prototypes) | | Ragdoll Masters | Homebrew | Low (Fighting game with physics) | Yes | | Half-Life 2 PSP Port | (Cancelled) | N/A | No |

To a 14-year-old in 2007, the logic seemed sound: "The PSP can run GTA: Vice City Stories , which is 3D. Why can’t it run GMod?"