
Factory automation meets tower defense; physical ammunition supply chains; conveyors, storage, and production machines; research and defense upgrades; growing zombie hordes; planning pause; persistent factory saves; mouse, keyboard, and touch controls.
Desktop: Left-click to build or select; drag to lay belts and walls. Right-click removes pieces. WASD pans, mouse wheel zooms, R rotates, Space pauses for planning, and Esc opens the menu. Use 1–3 for build menus and Ctrl+Z to undo. Touch: Choose a tool, then tap or drag to build. Use REMOVE to delete pieces. Drag with no tool to pan; pinch to zoom.