Block Number Gacha: Idle Roll!

Roll for rare numbers. Win with smart moves.

Block Number Gacha mixes idle collecting, math battles and quick logic puzzles. Discover numbers from 1 to 100, grow your collection with every reveal, and turn the numbers you own into your next winning move.

Find your next Legendary
Fill a 100-number collection across Common, Rare, Epic and Legendary rarities. Duplicate rolls help level up your numbers, so a familiar find can still make your collection stronger.

Win math battles
Every enemy is a number to break down. Play a factor to divide its HP, strike to set up a better move, then finish when a card in your hand is big enough. Build your collection to give yourself more ways to win.

Solve six free Number Trials
A fixed hand. One to three moves. Can you find the finish?

Take on six puzzles with supplied cards, move previews, hints and free retries. Earn a medal and two diamonds for each first clear. Replay any Trial for free; rewards are for first clears only. Trials use their own cards, leaving your collection untouched.

Battle and Number Trials unlock after 25 rolls.

Craft the gaps. Prestige for more.
Near the end of a collection run, turn duplicates into Decimals to craft missing, unlocked numbers. Complete all 100 to Prestige: start a fresh board, keep your number levels, and gain permanent boosts for the next run.

Play at your pace
Diamonds refill over time. Core collection, battles and Number Trials work offline. Rankings, optional account backup, purchases and rewarded ads require an internet connection.

Free to play, with optional rewarded ads and consumable diamond purchases.

Start your collection. Find your next smart move.