Crowbar vs TrenchBroom

Crowbar is a free modding tool for working with GoldSource and Source models and game packages. It can decompile MDL and related files into QC, SMD, and other related files, and can compile models when the game’s authoring tools or SDK and Crowbar’s studiomdl.exe are available. Viewing models likewise requires the game tools or SDK and Crowbar’s hlmv.exe. For archives, Crowbar can unpack, view, and search Valve VPK, Garry’s Mod GMA, Bloodlines VPK, Tactical Intervention FPX, and Fairy Tale Busters APK files. It can pack folders into VPK and GMA packages and supports batch extraction. Workshop functions allow downloading and publishing items for supported games. Game setups can link a game folder to its compiler, viewer, and package tools. On Windows, file associations and drag-and-drop can open VPK, QC, MDL, and folder inputs. The requirements page lists.NET Framework 4 and Windows XP or later, or Linux or Mac OS with a way to run a.NET Framework program. Crowbar is listed at free; donations are optional.

TrenchBroom is a free level editor for brush-based engines such as Quake, Quake 2, and Hexen 2. It provides a 3D workspace alongside up to three 2D views. Brush editing includes vertex changes, clipping, scaling, shearing, and constructive solid geometry operations for merging, subtracting, or hollowing shapes. A UV view handles textures and supports multiple material collections. The entity browser accepts drag-and-drop placement and definitions from FGD, ENT, and DEF files, while model display includes mdl, md2, md3, bsp, and dkm formats. An issue browser filters map problems, helps resolve them, and offers automatic quick fixes. TrenchBroom can call external compilers and launch game engines, but those compilation tools are separate. It supports several Quake, Valve, Hexen 2, and package formats. The 2026.2 requirements list Windows 10 1903+, Linux with glibc 2.33+, or macOS 13+, with OpenGL 2.1 and GLSL 1.2 hardware.