The open-source level editor that combines Hammer and TrenchBroom with a Godot-style scene tree.
Written in pure Rust with egui and wgpu. Games plug in as SDKs and WebAssembly plugins, starting with the surf game SurfsUp.
Top, front, side and a textured 3D view, the way Hammer lays them out. Space maximizes the view under the pointer.
Layers, groups, entities and brushes live in a scene tree you can drag to reorder. The inspector edits whatever you select, with fields and help text from the game's FGD.
The SurfsUp plugin adds Surf Ramp and Bhop Platforms next to Box, Wedge and Cylinder. Pick one and a ghost shows where it will land, with its parameters in the inspector.
Placed generators stay live: change a radius or a platform count and the group rebuilds in one undo step.
Turn any four-cornered face into a displacement grid, then raise, lower, smooth, flatten or roughen it with the Sculpt tool in the 3D view.
Neighboring displacements stay sewn together, and a grayscale heightmap can shape a whole terrain at once.
Draw a line across the selection in a 2D view, or on a face in 3D, and see both halves before you commit. Keep the front, the back or both.
Carve, hollow, merge, extrude, vertex editing and texture lock are all there too.
Every menu item, panel, tool and toggle can be rebound, and no two clash. Press F1 to see them all.
Coming from another editor? Switch the keymap to the Hammer or TrenchBroom preset in Preferences.
MapCraft knows no game by itself. An SDK is a folder with an sdk.toml: entity definitions, material folders, compile profiles and the plugins it needs.
Plugins are sandboxed WebAssembly components, so you can write one in Rust, C, C++, C#, Go, Python, JavaScript or Zig. They add commands, generators, material lists and importers. A plugin that traps or runs away is stopped and reported; the editor keeps going.
id = "surfsup"
name = "SurfsUp"
plugins = ["godot", "surfsup"]
fgd = ["fgd/surfsup.fgd"]
[textures]
roots = ["${project}/Assets/Textures"]The MapCraft GDExtension imports .mcmap files as Godot scenes: merged world meshes, convex collision, Area3D triggers and markers for entities. The scenes use only built-in nodes, so a game ships without the extension.
The SurfsUp SDK's Run menu imports, packs and plays a map in one step. Godot 4.4 and newer.
File > Import reads Valve BSP maps, versions 19 to 21, and brings back their brushes, entities and static props, so you can zone an existing Counter-Strike: Source surf map for SurfsUp.
Linux AppImage: make it executable and run it.
Windows zip: unzip anywhere and run MapCraft.exe. Keep the sdks folder beside it.
Choose File > New Map and pick an SDK. Press B for the Block tool and drag in a 2D view, or pick Surf Ramp from its shapes.
SDK Settings opens by itself when a folder is missing. For SurfsUp, pick the SurfsUp Godot project folder so materials load.
Unzip the Godot addon into your project's root folder and open the project in Godot once.
Needs Rust 1.95 or newer.
rustup target add wasm32-wasip2
cargo xtask plugins
cargo run --release -p mapcraft