Sandtris

Sandtris is a mind-bending, innovative puzzle game that brilliantly merges classic Tetris-style falling blocks with realistic granular physics! In this game, the classic rigid blocks don't stay solid. The moment they hit the ground, they instantly shatter and crumble into thousands of colorful sand particles, flowing and piling up just like real sand. Featuring beautiful retro pixel art, you'll be mesmerized watching vibrant shapes fall and dissolve into fluid dunes. This isn't just about matching shapes anymore; it introduces an entirely new strategic dimension. You must predict how the sand will flow, slide, and settle to manage your screen space efficiently. It's a gorgeous blend of logic puzzle and physics simulator—can you clear the lines before the rising dunes swallow the screen?

Your core objective: Prevent the sand from piling up and touching the top of the screen. Guide the falling blocks so that when they crumble, the resulting sand completely fills the screen from left to right in horizontal lines. Every fully packed row of sand is instantly eliminated, creating much-needed space for the falling sand above!

🎮 Core Gameplay Rules

1. Block to Sand Transformation: As the game begins, various geometric blocks fall from the top of the screen. The very second a block hits the floor or an existing pile of sand, it shatters into individual colored grains. These grains obey realistic gravity and physics, flowing downward and settling into natural slopes.

2. Line Clearing Mechanic: The classic rule still applies, but to sand! When the settled sand completely fills a horizontal line across the entire width of the screen—with zero empty gaps—that specific line is instantly vaporized, causing the sand above to drop down.

3. Game Over Condition: If the sand dunes pile up too high and the peak of the mountain touches the red line at the top of the screen, it's game over!

4. Game Modes:

• Classic Mode: The blocks fall at a steady, manageable pace. Perfect for strategy.

• Accelerated Mode: The drop speed constantly increases, brutally testing your reflexes and split-second decision-making.

🚀 Core Power-Ups

1. Next Block Preview: Located in the top right corner, this shows you the shape and color of the incoming block, allowing you to plan your drops.

2. Skip: Don't like the current block? Is it going to ruin your perfectly flat desert? Click 'Skip' to instantly trash it and bring down the next one.

3. Clear: The ultimate panic button. Using this power-up randomly vaporizes a massive chunk of your current sand pile, drastically lowering the height and saving you from a Game Over.

⌨️ Game Controls

Fully playable with simple keyboard or mouse inputs:

Move Left/Right: Press A/D, Left/Right Arrow keys, or click and drag the falling block with your mouse.

Fast Drop: Press S, Spacebar, or the Down Arrow key to instantly slam the block into the ground.

Use Power-Ups: Simply click the 'Skip' or 'Clear' icons on the screen to activate them.

The blocks are falling too fast! What do I do?

In Classic Mode, take advantage of the steady speed. ALWAYS look at the preview window in the top right corner so you know exactly what shape is coming next before you commit to a drop. In Accelerated Mode, it gets crazy fast! Focus your eyes on the center of the screen, prioritize drops that will flatten out slopes, and don't hesitate to burn your 'Clear' power-up if a tower gets too high.

Does the sand just pile up infinitely? Can I control where it flows?

When a peak gets too high, new sand dropped on it will naturally slide down the slopes into lower valleys. You can use this physics mechanic to your advantage! Deliberately drop blocks on high peaks above empty pits so the sand acts like a waterfall, filling the gaps below to trigger massive multi-line clears. But beware—dropping sand blindly can cause it to spill into areas you were trying to keep clean!

When is the best time to use the Skip and Clear items?

Skip: Use this when you get a horribly shaped block that will create steep, unmanageable spikes, or when the color completely clashes with what you need for an aesthetic build. Better to toss it than ruin your board.

Clear: Save this strictly for emergencies! Use it only when the sand is dangerously close to the top "Game Over" line, or if a massive, ugly pillar is blocking all your drops. It buys you precious time to rebuild.