Crystal Stack 3D | HTML5 Puzzle Game

Crystal Stack is a polished 3D tower stacking game made with Construct 3. A colorful glass floor slides over the tower: tap to drop it, and whatever hangs over the edge is sliced off and tumbles away. Perfect drops snap into place and fire a beam of light, and every 10 floors the light you gathered reveals a gem. In Levels mode you build up to a golden gate while dealing with ice floors that crack, gold floors that pay bonus gems, timers, gusts, crosswinds, swirls and a parrot that bumps your tower out of line. Endless mode brings the same obstacles in as the tower grows. Real 3D with Construct’s official 3D model, 3D light, 3D shape and 3D camera, no addons.

Gameplay

• 60 levels with a golden goal gate, 3-star rating (perfect drops) and saved progress, plus Endless mode with best height
• One-tap stacking with slicing: floors get smaller when you miss, grow back after 4 perfect drops in a row
• 7 mechanics introduced one by one with in-game tips: gold floors, ice floors, timer, gusts, birds, crosswind, swirls
• Gem system: 10 progress pips per stretch, 4 gem tiers (emerald, sapphire, ruby, diamond), bonus gems from gold floors
• Levels generated from their number (always the same for every player), difficulty grows with goal height and speed
• Rewarded Continue: a new floor, or more time when the clock runs out

Real 3D

• Glass building floors in 8 colors with window frames, gold and ice floors
• Floating island with trees, crystals and flowers; floating islands, clouds and giant crystals at every height; moon and 3D sky dome
• Golden ring gate with flags, flapping 3D parrot, spinning 3D jewels, 3D logo in the menu
• 3D lighting (sun + ambient) with a camera that follows the tower and pulls back on game over
• Low-poly CC0 models (Kenney) and light scenes: old floors and scenery are removed as the camera climbs (runs well on phones)

Game feel

• Light beam and white flash on perfect drops, combo counter, sparkles, falling slices
• Bird warning with chirp, impact with feathers and camera shake, wind streaks on screen
• 3D-rendered buttons, animated panels, confetti, fade transitions
• Original music loop and sound effects

Template features

• Construct 3 project (.c3p) + HTML5 export, no third-party addons
• Landscape 1280×720, Scale Outer, touch and mouse, “rotate your device” screen on phones
• 40 settings in CFG_ variables at the top of one event sheet: speed, tolerance, goals, stars, obstacles, camera, light
• Level select with locked levels and saved stars (Local Storage)
• Ad-ready: interstitial and rewarded functions with notes for AdMob, GameDistribution, CrazyGames and Poki, plus gameplay start/stop hooks
• Automatic pause when the browser tab is hidden (portal requirement)
• All interface texts in one JSON file, English and Portuguese included
• Event functions for every game moment (perfect, gem, bird, wind, fail, win…)
• Detailed PDF documentation (Documentation folder)

Ads and third-party services

The ad functions (interstitial and rewarded) are ready-to-fill placeholders for external ad services such as AdMob, GameDistribution, CrazyGames or Poki. These services are not included with this item and are not provided by the author: to show ads you need your own account with each provider, must accept their terms, and any ad revenue or revenue-sharing requirements are handled directly between you and the provider. Out of the box the game runs without any ad SDK (ads are simulated), so it works as-is.

What’s included

• Construct 3 project file (.c3p)
• HTML5 export ready to upload
• Documentation (PDF) in the Documentation folder: setup, configuration, gameplay, levels, 3D scene, reskin, translation, ads and export
• Original graphics, 3D floors, sky, logo, buttons, sounds and music; Kenney CC0 models; Baloo 2 font (SIL Open Font License)

Requirements

• Construct 3 r506 or newer to edit the project (3D model and 3D light)
• Any modern browser to play (desktop and mobile)