Smart Tilemap Builder

Problem

Building 2D levels tile by tile in Unreal is slow, and Paper2D has no auto-tiling.

Built

A full editing mode in the level viewport: you paint terrain, and the plugin picks the right tile, stacks the depth layers and rebuilds the collision live. Every stroke is a single undo step.

A C++ plugin for Unreal Engine 5.7 and 5.8, available on FAB. Watch it build a level in two minutes in the tutorial on my YouTube channel.

Seven tools, all on shortcuts

Brush, Eraser, Fill, Rectangle, Stamp, Select and Sprite. Hold Shift to erase with any tool, or Ctrl+click to pick the terrain or tile under the cursor. Select lets you move, copy, paste, delete and mirror.

Auto-tiling you configure once

• 4-bit (16 tiles) or 8-bit blob (47 tiles) neighbour matching
• One button generates the whole rule set from a standard sheet
• Weighted variants for visual variety, seeded per cell so they never flicker

Slopes and collision

• One button generates slope rules and their collision: every step you paint becomes a ramp, at 45°, 30° or custom heights
• Aligned tiles merge into as few boxes as possible, so a hundred tiles in a row become one collider
• One-way platforms you can jump through from below
• Top surfaces exported as tagged splines, ready for ledge detection or AI patrol paths

2.5D depth and parallax

Depth layers with their own offset, parallax, tint and collision, plus looping sprite scenes for skylines and clouds that preview their scrolling in the editor.

Procedural generation

Every painting operation is exposed to Blueprint and C++, with ready-made passes for seeded terrain and decor, so roguelike levels can be built at runtime with the same rules you paint by hand.