KUBLOXPLAY YOUR NEXT MOVE
LOCAL
SMALL BLOCKS. BIG BATTLES.
Get into the game.
Own the arena.
Your next high score starts here.
Solo, head-to-head or free-for-all.
READY TO PLAY?
One block at a time.
Complete full lines.
Make room for what comes next.
Arena
PRACTISE AT YOUR PACE • NO RUSH. ON TO THE NEXT BLOCK.
KUBLOX: a free block puzzle in your browser
Fit falling pieces, complete lines and keep your board clear. Play KUBLOX on your phone with touch controls or on your computer with a keyboard. No installation or account needed.
How to play KUBLOX
Move and rotate pieces on a board with 10 columns and 20 rows. Full lines disappear and earn points. The ghost piece shows where your piece will land; hold lets you save a piece for later. Your game ends when there is no room to continue.
On a computer, use ← and → to move, ↑ to rotate, ↓ for soft drop, Space for hard drop, and C or Shift to hold. In Solo, pause with P or Escape. On a phone, use the buttons below the board.
Solo, Duel 1v1 and Arena for up to 10 players
Solo: practise at your own pace
Play on your own, improve your score and learn to use hold and the next-piece preview. Pause and restart whenever you like.
Duel: find an opponent or challenge a friend
Choose Duel 1v1 to find an opponent automatically. If no player joins within about 15 seconds, a bot joins. To play with a friend, create a private room and share its code.
Arena: outlast up to nine opponents
Arena brings together up to 10 players. In automatic matchmaking, bots fill empty slots after about 15 seconds. In a private arena, the host starts with 2 to 10 participants. The last player standing wins.
In multiplayer, everyone gets the same piece sequence. Clearing two, three or four lines sends attacks; pending garbage is cancelled before the remainder is sent. In Arena, each attack targets one surviving opponent. Eliminated players can watch the others.
Frequently asked questions
Is KUBLOX free?
Yes. All three modes are free to play, with no account needed.
Do I need to install anything?
No. The game runs directly in a browser with JavaScript enabled. Multiplayer requires an Internet connection.
Can I play on my phone?
Yes. KUBLOX has touch controls and a board adapted to small screens. You can also play on a computer using a keyboard.
How many people can play together?
Duel is for two players. Arena supports 2 to 10 participants, including bots in automatic matches.
How do I play only with friends?
Choose Duel or Arena, create a private room and share the code. Private rooms are not filled with bots.