Roblu Arcade

Puzzle minigame

Numblo

Add up tiles to hit the target number before time runs out.

▶ Play Numblo — free, no install

Free · plays in the browser on phone or desktop · no account

A 5×5 grid of numbers from 1 to 6 and a target sum. Tap tiles to build a chain — each new tile has to neighbour the last one — and make the running total hit the target exactly.

The catch is that overshooting ends the round instantly. Undo is free (tap the head of your chain to step back), but the moment your sum passes the target, no undo can save you. Every round is guaranteed solvable.

How to play

  1. Tap any tile to start a chain, then keep tapping neighbours to extend it.
  2. Tap the chain’s head tile to undo a step — as often as you like.
  3. Land the running sum exactly on the target. Going over loses instantly.

Modes & difficulty

The grid stays 5×5; the target range scales instead. Easy asks for 8–14 (many short routes work), Medium for 16–22, and Hard for 24–32 — which forces you to hunt down the 5s and 6s and plan a longer path. A generous 30-second clock keeps it thoughtful rather than frantic.

One tip

Plan the landing before you take off: pick the tile you want to finish on and check its neighbours first. Arriving at "target minus 3" is only good if a 3 is actually reachable from where you’ll stand.

More games

Code Lock · Laser Link — or browse all minigames.

▶ Play Numblo — free, no install