Sketch level layouts on a grid derived from your game's movement metrics. Place spawns, enemies, cover, and landmarks; trace the critical path; and measure every gap against what your character can actually jump.
The grid snap derives from your player capsule, so rooms and corridors come out in buildable dimensions. Rooms display their size in meters or Unreal units as you draw.
The sightline tool casts a true visibility polygon from any point — through your walls and cover — and flags every enemy in view. The auto-route pathfinds from spawn to objective, times the run, colors enemy-exposed stretches red, and a ghost run replays it at real speed.
Drag the measure tool across any gap and it verdicts the jump against your real movement physics: green is buildable, amber is frame-perfect, red is impossible. Side-view mode draws the complete flight arc to its landing point.
Spawn, enemy, pickup, objective, cover, and landmark stamps; wall and door tools; a critical-path tool that reports route length and traversal time so you can pace the level before you build it. Boxes merge into named L- and T-shaped rooms with exact dimensions, and every tool has a hotkey.
Design checks encode what the industry keeps re-learning: give players a calm beat before first contact, give every space a landmark to navigate by (the theme-park "weenie" principle), trace and time the golden path, and never build corridors thinner than two player-widths.