Shadow Stack: 3D Logic Puzzle

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Everyone
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Everyone
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About this game

Shadow Stack is a 3D shadow puzzle with a simple idea and a lot to think about. Two lamps shine on your board. Each lamp throws your towers' shadows onto its own wall. Your job: place soft block towers on the grid so both shadows fill their dashed outlines at the same time.

One tower can fix the left wall and ruin the right one. Every move counts twice. That is what makes Shadow Stack a logic puzzle, not a guessing game.

How to Play
• Drag a block tower onto the grid
• Watch both shadows update on both walls
• Fill every dashed outline to solve the level
• Earn up to three stars for a clean solve

Travel Across America
• 625 levels across all 50 US states
• Every state has its own landmark and its own colors
• Fill in the map as you go, from easy first steps to tricky late boards

Special Buildings
Six special buildings change how you plan your shadows:
• Twin – two joined plots, each with its own height
• Blocker – a tower that needs empty plots all around it
• Billboard – a flat sign that shades only one wall
• Big Block – one wide 2x2 block
• L-Building – three plots in an L shape
• Long House – three plots in a row

Daily Puzzle and Streaks
• A fresh shadow puzzle every day
• Keep your streak alive and track it on the calendar
• Optional reminders so you don't miss a day

Collect as You Play
• Find hidden collectibles on the map
• Unlock shadow landmarks in your Collection

Made to Be Calm
• Soft, toy-like block buildings with painted windows
• Clean boards, no clutter, no timers
• Short levels that fit a coffee break, deep enough for a long session

If you like 3D logic puzzles, block puzzles and brain teasers, Shadow Stack gives you a new way to think in two directions at once.

Questions or feedback: info@beecom.games
Drag toy block towers so both shadows fill the outlines. 625 levels, 50 states.
Updated on
Oct 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity, and Device or other IDs
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

new features and bug fixes
Content rating
Everyone
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App support

About the developer
Beecom Limited
info@beecom.games
Rm B 11/F YAM TZE COML BLDG 23 THOMSON RD 灣仔 香港島 Hong Kong
+66 62 221 3255

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