The Puzzle Creator (also known as Puzzle Maker or Editor) is a part of the Perpetual Testing Initiative in Portal 2, a DLC released on May 8th, 2012[1] allowing the creation of single-player test chambers within a simple in-game editor.[1]
The editor was first mentioned within The Final Hours of Portal 2, "[An in-game level browser won't be of much use unless] Valve figures out how to make designing Portal 2 maps an easier process. It has a plan there too, it comes in the form of a simplified level editor [...] a Photoshop for test chambers".[2]
The "Puzzle Creator" does not appear to have a single official name; Valve published a blog post on the October 27, 2011 referring to the editor as the "Puzzle Creator"[3], later referred to it on the blog post of April 27, 2012 as "Puzzle Maker"[4] and simply calling it "Editor" in-game.
Interface
The Puzzle Creator features a stylised representation of the test chamber being worked on; featuring a simplified, bright, and flat color palette, and models and textures lack the level of detail that they would have in-game.
The initial view of the Puzzle Creator.
Basic controls
Hovering the mouse over the left screen edge displays the item list.
The top edge of the screen features four buttons: "Build and play puzzle", "Undo", "Redo", and "Switch to game view".
Selecting and dragging the upper-right corner pans the camera view.
Selecting and dragging the right edge controls the camera zoom.
Selecting and dragging the lower-right corner controls the camera rotation.
- Select a block or item.
- On background: Pans camera view; On chamber: Context menu.
- Click: Controls camera rotation; Scroll: Controls camera zoom (follows cursor).
W+S - Zoom in/out.
Q+E - Rotate left/right.
W+S - Pan left/right.
R+F - Rotate up/down.
P - Toggle surface portalability.
++- - Push/pull (extrude) surface.
Delete/← Backspace - Delete selection.
Advanced controls
⇧ Shift+ - Allows for batch selection of surfaces.
ctrl+ - Duplicates an item (does not duplicate any connections).
alt+ - Places an item on the surface opposite to the one facing the camera.