Play Block Blast Online

This page lets you play a free web version of Block Blast right in your browser, with nothing to download or install. blockblast.co is an unofficial fan site. The original Block Blast app is developed by Hungry Studio and distributed on the App Store and Google Play. The rules below describe the web version on this site.

Web rules · Controls · Practice example · Troubleshooting

• The board is 8×8.
• Each round you get 3 blocks. When all 3 are placed, you get a new set of 3.
• You cannot turn blocks. They come in different orientations, and you place each one exactly as shown.
• Fill an entire row or column to clear it. If several rows and columns fill up at the same time, they all clear together.
• If no remaining block fits, you can use one revive per run or finish the game. After the revive, the next no-fit state ends the run.

• Drag a block from the tray onto the board with your mouse or finger.
• While you drag, the board previews where the block will land and which lines it will clear.
• Release to place it. If the spot is not valid, the block goes back to the tray.
• Use the speaker button to turn sound on or off.

• Every block you place scores 1 point per cell.
• Clearing lines scores 10 points for every cell cleared, plus a bonus for clearing several lines at once, multiplied by your current combo.
• Clearing again within 3 placements of your last clear keeps the combo going.
• Clearing the whole board gives a 360-point bonus.
• Placing all three blocks in a tray marked CHALLENGE +200 adds 200 points outside the combo multiplier. A revive clears three rows without awarding points and resets the combo.

The full scoring table and combo rules are in the Block Blast rules and scoring guide. To plan a difficult set of blocks, try the Block Blast solver.

In Block Blast, check all three tray pieces before committing a move. A large piece that cannot fit now may fit after a smaller piece clears a line. “Always place the largest first” is not a rule.

This Block Blast practice position shows how a clear can open space for the next piece. It is a practice diagram, not a promise about the next board you will be dealt. # means an occupied cell and . means an empty cell. Rows are counted from the top and columns from the left, starting at 1.

      12345678
Row 1 ######..
Row 2 ...#####
Row 3 ...#####
Row 4 .#####.#
Row 5 #.###.##
Row 6 ##.#.###
Row 7 ###.###.
Row 8 ####.##.

The tray contains a horizontal 1×2 line, a 3×3 square and a 1×1 piece.

1. Put the 1×2 line in row 1, columns 7–8. This finishes and clears row 1.
2. Put the 3×3 square in rows 1–3, columns 1–3. Those cells are now free; rows 2 and 3 become full and clear together.
3. Put the 1×1 piece in row 1, column 4. All three pieces have been placed, so a new tray appears.

If you instead put the 1×1 piece in row 2, column 2 first, it occupies part of the only space that the 3×3 square could use after the first-row clear. The same remaining square then cannot fit. The lesson is to reserve the exact footprint of the difficult piece and use a clear to open it.

• The block returns to the tray: its occupied cells would overlap a block or extend beyond the board. Follow the placement preview and release only when the whole shape fits. A rejected drop does not place a block or earn points.
• A large empty area still rejects a piece: count its width and height. Nine scattered empty cells are not a 3×3 space; the entire shape must fit in one position, in its displayed orientation.
• One tray piece has no place yet: check whether either of the other pieces can clear a line to make room. The game checks all remaining pieces, not only the one you tried to drag.
• Nothing in the tray fits: choose the one available revive or end the run. A revive removes the three fullest rows, retains your score and deals a fresh tray, but adds no clear points and resets the combo. After you have used it, another no-fit state ends the game.
• A reload did not restore the run: saves are local to this browser. A different browser or device will not share them; clearing site data, unavailable browser storage or an incompatible old save can prevent restoration.

This Block Blast web version is an endless score game with mouse and touch dragging. A new run can begin with a partly filled opening board. It has a one-use revive and occasional trays marked CHALLENGE +200. It does not offer the app’s Adventure levels or Daily Puzzle modes, and its scoring formula should not be applied to the app or another website.

Use the rules and scoring examples to understand the score display. For a specific crowded board, the Block Blast solver can help you plan the current three pieces; it cannot promise that future random trays will always fit.

Knowing the Block Blast shapes helps you keep room for the pieces that are hardest to fit.

1×2 Line

1×3 Line

1×4 Line

1×5 Line

Lines also come vertically. A 1×5 line needs 5 free cells in a straight row or column, so keep at least one long gap open.

2×2 Square

3×3 Square

2×3 Rectangle

The 3×3 square is the largest block (9 cells). It is often the hardest block to fit, so try to keep a 3×3 space free.

Small Corner (3 cells)

L-Block (4 cells)

Large Corner (5 cells)

T-Block

S-Block

There is also a single 1×1 block, which is handy for plugging a one-cell hole.

1. Plan all 3 blocks before placing the first. The order matters: placing one block can clear a line and open space for the next.
2. Keep a big open area. Leave room for a 3×3 square and a 1×5 line whenever you can.
3. Avoid single-cell holes. A hole surrounded on all sides can only be filled by a 1×1 block and blocks the whole row and column.
4. Build along the edges. Filling edges and corners first keeps the middle open for large blocks.
5. Set up several lines at once. Multi-line clears earn a line bonus. Weigh that bonus against your combo and the space you need for the next move.

1. Parallel lines: Fill several neighboring rows or columns to the same gap, then clear them together with a line block.
2. Cross clears: Prepare a row and a column that share one empty cell. A single block in that cell clears both.
3. Keep the chain alive: Leave one almost-finished line ready so you can clear again within 3 placements and keep the combo multiplier growing.

1. Look for any placement that clears a line, even a single one, to win back space.
2. Check the largest block’s space first. If it cannot fit yet, use a smaller piece to clear a line and open its footprint; otherwise protect that space before using small pieces.
3. Avoid moves that split the open space into small, separate pockets.

Can I play on my phone? Yes. The web version works in mobile browsers and supports touch dragging.

Do I need to install anything? No. The game runs directly in your browser.

Is it free? Yes, the web version on this site is free to play.

Is my progress saved? Your best score and sound setting are saved locally in your browser. A game in progress is saved locally too, so you can reload the page and keep playing; the save is cleared once the game ends.

If you want the original Block Blast app from Hungry Studio, see our download page for links to the App Store and Google Play. For more questions, read the Block Blast FAQ.

These videos may show a different app or web version. Follow the rules above for blockblast.co’s scoring and revive behavior.