Merge Trail: Play Free Online

Merge Trail

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Merge Trail is an arena game where your snake is a chain of shaded number cubes. Your head is always your biggest cube and every cube behind it is smaller, sorted from front to back. Glide over loose 2s, 4s and 8s to add them to your trail; whenever two neighbours show the same value they snap together into the next power of two, and a lucky pickup can set off a whole cascade of merges that rolls all the way up to your head.

Size is everything. Your head can swallow any loose cube that is not bigger than it, and any snake whose head is smaller than yours. Catch that snake by the head and you eat it whole: its head cube joins your chain and the rest of its body spills onto the floor for everyone to grab. Catch it by the body and you bite off that cube, while the tail behind it scatters. Run into a snake with a bigger head and your own head cube shatters into pieces, and if your head was all you had, you are the one who gets eaten. Equal heads simply bounce off each other. Boost to chase or escape, but the meter drains fast.

Play solo against a dozen bots with their own personalities, from cautious collectors to greedy hunters, or jump online into a shared arena with up to eight players, with bots filling the empty spots. The leaderboard in the corner shows who is the biggest right now, the minimap shows where everybody is, and the camera zooms out as you grow. Your biggest cube is your score: reach new values to unlock colourful trails, and with a free TapNPlay account your best goes on the global leaderboard.

How to play

Steer your snake with the mouse, by dragging anywhere on a touch screen, or with the arrow keys.
Collect loose cubes that are not bigger than your head. Equal neighbours in your chain merge into the next value, and merges can cascade up to your head.
Touch a snake whose head is smaller than yours: hit its head to eat it whole, or its body to bite off its tail. Stay away from bigger heads: bumping into one shatters your head cube.
Hold the mouse button, Space or the BOOST button to speed up while the boost meter lasts.
Your score is the biggest cube you reach. Play solo against bots or online against other players.

Controls

Mouse	Steer toward the pointer; hold the button to boost
Touch	Drag anywhere to steer; hold BOOST to speed up
Arrow keys / A, D	Turn left or right
Space / W / Up	Boost
Esc / P	Pause
M	Music on or off
Gamepad	Left stick steers, A or right trigger boosts, Start pauses

Developer: peakr.io
Released: October 22, 2026
Platforms: Browser (desktop and mobile)
Players: Single player and online multiplayer

FAQ

Which cubes and snakes can I eat?

Loose cubes up to the value of your head, and any snake whose head cube is smaller than yours. Hitting its head eats the whole snake; hitting its body bites off that cube and spills the tail behind it. Cubes that are too big for you look faded until you grow.

What happens when I hit a bigger snake?

Your head cube shatters into smaller pieces that land around you, and you are protected for a moment while you get away. If your head was your only cube, the bigger snake eats you.

How does online play work?

Play online puts you in an arena with up to eight players; after a few seconds the game starts with whoever is there and bots fill the rest. If the player hosting the arena leaves, another player takes over and the round keeps going.