diff --git a/s/dom/elements/app.ts b/s/dom/elements/app.ts
index dbcd1fd..0aefd8b 100644
--- a/s/dom/elements/app.ts
+++ b/s/dom/elements/app.ts
@@ -1,11 +1,11 @@
 
 import {nexus} from "../nexus.js"
 import styles from "./app.css.js"
-import {MapEditor} from "../views/map-editor.js"
+import {MapEditorView} from "../views/map-editor.js"
 
 export const TinyforgeApp = nexus.shadow_component(use => {
 	use.styles(styles)
 
-	return MapEditor([])
+	return MapEditorView([])
 })
 
diff --git a/s/dom/views/map-editor.css.ts b/s/dom/views/map-editor.css.ts
index 0ebc99f..c55042b 100644
--- a/s/dom/views/map-editor.css.ts
+++ b/s/dom/views/map-editor.css.ts
@@ -4,7 +4,9 @@ import {css} from "@benev/slate"
 export default css`
 
 .easel {
-	display: block;
+	display: flex;
+	justify-content: center;
+	align-items: center;
 	position: relative;
 	width: 100%;
 	height: 100%;
@@ -14,11 +16,12 @@ canvas {
 	width: 100%;
 	height: 100%;
 	background: #222;
+	outline: none;
 }
 
 .sidebar {
 	position: absolute;
-	width: 3em;
+	width: 10%;
 	height: 100%;
 
 	background: #333a;
diff --git a/s/dom/views/map-editor.ts b/s/dom/views/map-editor.ts
index e0d03ca..d5d51d9 100644
--- a/s/dom/views/map-editor.ts
+++ b/s/dom/views/map-editor.ts
@@ -3,15 +3,51 @@ import {html} from "@benev/slate"
 
 import {nexus} from "../nexus.js"
 import styles from "./map-editor.css.js"
+import {Editor, editing} from "../../game/editor.js"
+import {Bestorage, EffectsPanelData, Stage, op_effect} from "@benev/toolbox"
 
-export const MapEditor = nexus.shadow_view(use => () => {
+export const MapEditorView = nexus.shadow_view(use => () => {
 	use.styles(styles)
+	use.name("map-editor")
+
+	const goods = use.op<{
+		stage: Stage,
+		editor: Editor,
+	}>()
+
+	use.once(async() => {
+		await goods.load(async() => {
+			const stage = await Stage.create({
+				background: Stage.backgrounds.black(),
+				allow_webgpu: false,
+				webgl_options: {
+					alpha: false,
+					desynchronized: true,
+					preserveDrawingBuffer: false,
+					powerPreference: "high-performance",
+				},
+				webgpu_options: {
+					antialias: true,
+					audioEngine: true,
+					powerPreference: "high-performance",
+				},
+				bestorage: new Bestorage<EffectsPanelData>({
+					effects: {},
+					resolution: 100,
+				}),
+			})
+			const editor = await editing(stage)
+			return {stage, editor}
+		})
+	})
 
 	return html`
 		<div class="easel">
-			<canvas></canvas>
-			<div class="sidebar alpha"></div>
-			<div class="sidebar bravo"></div>
+			${op_effect.binary(goods.value, ({stage}) => html`
+				${stage.porthole.canvas}
+				<div class="sidebar alpha"></div>
+				<div class="sidebar bravo"></div>
+			`)}
 		</div>
 	`
 })
diff --git a/s/game/editor.ts b/s/game/editor.ts
new file mode 100644
index 0000000..1815cd0
--- /dev/null
+++ b/s/game/editor.ts
@@ -0,0 +1,99 @@
+
+import {Level} from "./level.js"
+import {Stage, Vec2, load_glb, scalar} from "@benev/toolbox"
+import {ArcRotateCamera, DirectionalLight, HemisphericLight, TransformNode, Vector3} from "@babylonjs/core"
+
+export type Editor = Awaited<ReturnType<typeof editing>>
+
+const tsize = {
+	width: 6,
+	height: 4,
+}
+
+export async function editing(stage: Stage) {
+	const {scene} = stage
+	const level = new Level([12, 8])
+	const camera = make_camera(stage)
+
+	const assets = await load_glb(scene, "/assets/props.glb")
+
+	const sun = new DirectionalLight("sun", new Vector3(.234, -1, .123), scene)
+	sun.intensity = 2
+
+	const hemi = new HemisphericLight("hemi", new Vector3(.213, -1, .345), scene)
+	hemi.intensity = .2
+
+	const assetTerrainBlock = assets.transformNodes.find(n => n.name.includes("terrain-block"))!
+	const originals = new TransformNode("originals", scene)
+	const terrainBlock = assetTerrainBlock.clone("terrain-block-ready", originals)!
+
+	const worldspace = ([tileX, tileY]: Vec2): Vec2 => {
+		const [extentX, extentY] = level.extent
+		const midX = extentX / 2
+		const midY = extentY / 2
+		const {width} = tsize
+		const halfwidth = width / 2
+		const x = ((tileX - midX) * tsize.width) + halfwidth
+		const y = ((tileY - midY) * tsize.width) + halfwidth
+		return [x, y]
+	}
+
+	level.setTile([0, 0], {kind: "block", elevation: 1})
+	level.setTile([1, 1], {kind: "block", elevation: 1})
+	level.setTile([2, 2], {kind: "block", elevation: 1})
+
+	const instances = new TransformNode("instances", scene)
+
+	for (const [tile, [x, y]] of level.loop()) {
+		switch (tile.kind) {
+			case "block": {
+				const [worldX, worldZ] = worldspace([x, y])
+				const worldY = tile.elevation * tsize.height
+				const n = terrainBlock.instantiateHierarchy(instances)!
+				n.position = new Vector3(worldX, worldY, worldZ)
+				console.log([worldX, worldY, worldZ])
+				break
+			}
+			case "ramp": {
+				break
+			}
+			case "corner": {
+				break
+			}
+		}
+	}
+
+	for (const n of assets.transformNodes)
+		console.log(n.name)
+
+	stage.gameloop.start()
+
+	return {
+		level,
+		camera,
+		dispose() {
+			stage.gameloop.stop()
+			stage.engine.dispose()
+			stage.scene.dispose()
+		},
+	}
+}
+
+/////////////////////////////
+
+function make_camera(stage: Stage) {
+	const alpha = scalar.radians.from.degrees(90)
+	const beta = scalar.radians.from.degrees(10)
+	const radius = 70
+	const camera = new ArcRotateCamera(
+		"camera",
+		alpha,
+		beta,
+		radius,
+		new Vector3(0, 0, tsize.width * 0.5),
+		stage.scene,
+	)
+	stage.rendering.setCamera(camera)
+	return camera
+}
+
diff --git a/s/game/level.ts b/s/game/level.ts
new file mode 100644
index 0000000..dbffc07
--- /dev/null
+++ b/s/game/level.ts
@@ -0,0 +1,101 @@
+
+import {Vec2, loop2d} from "@benev/toolbox"
+
+export type Elevation = (
+	| 0 // water
+	| 1 // sand
+	| 2 // dirt
+	| 4 // grass
+	| 5 // rock
+)
+
+export type Kind = "block" | "corner" | "ramp"
+
+export enum Cardinal {
+	North,
+	East,
+	South,
+	West,
+}
+
+export enum Ordinal {
+	NorthWest,
+	NorthEast,
+	SouthEast,
+	SouthWest,
+}
+
+export type Block = {
+	kind: "block"
+	elevation: Elevation
+}
+
+export type Corner = {
+	kind: "corner"
+	elevation: Elevation
+	ordinal: Ordinal
+}
+
+export type Ramp = {
+	kind: "ramp"
+	elevation: Elevation
+	cardinal: Cardinal
+}
+
+export type Tile = Block | Corner | Ramp
+
+export function asTile<T extends Tile>(tile: T) {
+	return tile
+}
+
+export class Level {
+	readonly extent: Vec2
+	#tiles: Tile[]
+
+	constructor(extent: Vec2) {
+		this.extent = extent
+		this.#tiles = [...loop2d(extent)].map(
+			() => asTile({kind: "block", elevation: 0})
+		)
+	}
+
+	tileIndex([x, y]: Vec2) {
+		const [extentX] = this.extent
+		return (y * extentX) + x
+	}
+
+	getTile(vec: Vec2) {
+		return this.#tiles[this.tileIndex(vec)]
+	}
+
+	setTile(vec: Vec2, tile: Tile) {
+		this.#tiles[this.tileIndex(vec)] = tile
+	}
+
+	overwriteTiles(tiles: Tile[]) {
+		this.#tiles = tiles
+	}
+
+	*loop() {
+		for (const vec of loop2d(this.extent)) {
+			const tile = this.getTile(vec)
+			yield [tile, vec] as [Tile, Vec2]
+		}
+	}
+
+	save() {
+		return JSON.stringify({
+			version: 0,
+			extent: this.extent,
+			tiles: this.#tiles,
+		})
+	}
+
+	static load(json: string) {
+		const {extent, tiles} = JSON.parse(json) as any
+		const level = new this(extent)
+		level.overwriteTiles(tiles)
+		return new this(extent)
+	}
+}
+
diff --git a/s/index.css b/s/index.css
index 151f92d..85dc428 100644
--- a/s/index.css
+++ b/s/index.css
@@ -7,14 +7,17 @@
 
 html, body {
 	font-size: 16px;
+	height: 100%;
 	background: #111;
 	color: #fffc;
-	height: 100%;
 }
 
 tinyforge-app {
+	position: absolute;
+	inset: 0;
 	margin: auto;
 	max-width: 100%;
 	max-height: 100%;
 	aspect-ratio: 16 / 9;
 }
+