Boo Chains

Boo Chains is a Halloween linking puzzle where cute monsters carry numbers. Connect monsters that share the same number or are one apart, and the whole chain explodes.

Stretch a chain far enough and you earn pumpkin bombs, lightning bolts and a wild ghost for huge combo blasts. Your journey crosses a spooky map with 5 zones, where you rescue monsters stuck in spider webs, chains, armor or tombstones, with a huge boss battle waiting after each set of 10 stages. Along the way you can recruit 5 monster heroes, each with a special power, purchase upgrades, finish daily missions and collect a nightly gift.

Hold the mouse and sweep over adjacent monsters whose numbers match or differ by one, then let go.

9 can link to 1, so chains can wrap around.

Keyboard players can steer a cursor with WASD or the arrows, link with Enter and collect with Space; B fires a power, H shows a hint, R reshuffles.

On mobile, slide your finger over the monsters.