DropOS vs Gravity Grid

A da Vinci workshop, rendered in brass and gravity. In a lantern-lit workshop of brass and walnut, a marble waits at the top of a machine you cannot steer. Drag it into the top funnel and let go. Real gravity takes over, and the marble rolls, tips, and tumbles through the fixed contraption until it lands, ideally, in a bin that matches it. Then look again. Every piece that marble crossed has changed for the marble behind it. You plan the sequence. Physics does the rest. You never steer a marble in flight. You read the machine, then choose the order you drop them in. - The see-saw bit tips one way, then the other. The marble crossing it reroutes the next one. - The rotor does not toggle. It counts forward to its next exit with every pass. - The remote lever throws a switch from across the board. - The waterwheel never stops turning, so timing matters as much as logic. - The felt slows a marble to a crawl. It changes how late a marble arrives, never where it lands. - The wax seal carries the first marble across, then breaks. Every marble behind it drops through. Every marble in a bin that matches it, every bin filled, and the level is solved. A misfire is not a wall. Press the red knob and the machine re-cocks itself, ready for a new order. Walking out on a run already in motion costs your streak, so the machine asks first. What's inside - 100 hand-designed levels, rated one to five in difficulty - One new idea at a time: no two pieces debut on the same board - More waiting deeper in: the gilded marble, the cam tongue, the trapdoor, the pendulum, the drumskin, and the press - A weekly boards leaderboard to climb - Earn cogs as you play and grow your purse - The Cascade, a bonus brass pin board: no randomness in the drop, just physics - Three brass instruments to earn and spend: the Hourglass, the Blueprint, and the Apprentice Built like a puzzle box. Every surface is warm brass, walnut, or aged parchment, and every word is set in EB Garamond, the serif of an old draftsman's manual. Yours to play, quietly. No ads. No sign-in. No ad-tracking or ad-targeting software. DropOS needs no connection to play; anything synced for the leaderboard is anonymous by default. For anyone who loved the marble-drop puzzlers of the late 1990s, and for anyone meeting one for the first time.

Turn the world. Watch everything fall into place. Gravity Grid is a puzzle game with one beautifully simple rule: you never touch the blocks. You rotate the entire board — and gravity does the rest. Every block tumbles, slides and stacks in the direction you chose. Land each colour in its matching exit and the level is solved. Easy to understand in three seconds. Surprisingly hard to master. WHY YOU'LL KEEP PLAYING • One rule, endless depth — a single rotation moves every piece at once, so every turn matters • 9,540 levels, hand-tuned in difficulty from your very first board to genuinely brutal • Never unwinnable — every level is verified solvable, and no wrong move can dead-end you. If you're stuck, it's a puzzle, not a bug • No timers on most levels — think as long as you like • Fully offline — every level is on your device. Play on a plane, on the subway, anywhere MECHANICS THAT KEEP IT FRESH New ideas arrive gradually, each one taught on the level it first appears: • One-way gates that only let blocks through from one direction • Portals that teleport blocks mid-fall • Glue tiles that anchor a sliding block in place • Colour-swap tiles that change a block as it passes • Locked exits that open only once you've cleared a colour • Linked blocks that move as one • Jokers that fit any exit • Move limits, when the puzzle needs the pressure POWER-UPS FOR WHEN YOU'RE STUCK • Hint — shows you the next right move • Hammer — send any block straight to its exit • Undo — take back a rotation • Rocket — plays the best move for you • Freeze — buys you extra moves or extra time RELAX, OR COMPETE WITH YOURSELF Earn up to three stars per level. Chase a perfect run. Take on the Daily Challenge for bonus rewards. Or just play a few boards before bed — it's that kind of game. PLAY IN YOUR LANGUAGE Fully localized in English, Arabic, Spanish, French, German, Portuguese, Russian and Turkish, with full right-to-left support. No account. No sign-up. No ads mid-puzzle. Just open it and play. Download Gravity Grid: Color Drop and start turning the world.