Index Shuffle

A game of powers and smart moves

SLIDE · MERGE · SOLVE · SURVIVE

Powers are made.Great runs are earned.

A mathematical twist on 2048. Combine powers, bank correct answers and make every move count.

No unfinished games saved yet.

Roguelike achievements persist across games.
Classic One endless high-score challenge
Roguelike 12 rounds with bosses, gold and upgrades
YOUR ROGUELIKE JOURNEY

Four realms. Twelve rounds. Four boss gates.

Each realm brings new threats
STAGE I · ROUNDS 1–3The Observatory
STAGE II · ROUNDS 4–6The Mist Gardens
STAGE III · ROUNDS 7–9The Fracture Forge
STAGE IV · ROUNDS 10–12The Eclipse Vault

REFERENCE

How to play

1. Slide and combine

Use the arrow keys, WASD, touch swipe or direction buttons. Powers with the same base merge by adding their exponents. A swipe that changes nothing does not cost a move.

3² × 3³ = 3⁵

2. Bank a power

Select a glowing ✦ tile and calculate its exact value in 60 seconds. Every power can normally be banked only once per base–exponent combination each round, including golden powers. The rare Echo Seal allows one exception on its marked square. In Roguelike, gold allows banking exponent 1 directly, provided that exact power has not already been banked. Banking earns points and leaves a non-golden smaller tile behind. A wrong answer, timeout or cancelled question locks the tile until another successful slide; cancelling never resets the answer timer for free.

3. Protect your moves

You start with 10 moves. Each successful slide costs 1 move plus 1 for every active blocker. Bank two powers that were actually created by merging to earn back 1 move, up to 10. At zero moves the run ends.

4. Break blockers

Yellow ! squares warn where a fixed blocker will arrive on the next slide. A blocker cannot move or merge. Correctly bank a ⚡ merged power directly beside a blocker to damage it. Different blocker tiers take different numbers of successful banks.

✦ Bankable⚡ Damages blocker if banked ⌛ Banking cooldown! Incoming blocker ▦ Fixed blocker ◉ Golden tile: bank once per base–exponent combination ✓ Golden power already banked this round ✧ Roguelike square hazards ◉ / ×2 / ↺ / +10 / ⚒ Enchanted squares ! Hazard incoming next slide (with hazard name)

THE NUMBERWORLD CABINET

Your achievements

Earn awards by playing, banking and overcoming bosses.

0 of 16 unlocked Collected across all Roguelike runs
☠   BOSS ENCOUNTER
STAGE 1 · ROUND 3 OF 12

The Blockade

A formidable opponent awaits.

YOUR CHALLENGE

The rule for this boss encounter.

Round target: 0 points

GAME OVER

Your final score

How far did you get?

Run completed

FINAL SCORE 0

Personal best: 0

Share your run

✦   THE NUMBERWORLD · ROUND CLEARED ROUND 1 / 12

TARGET REACHED

Round complete!

A new victory on your journey through the Numberworld.

ROUND SCORE0 Target 0 points
GOLD EARNED+0 From banks and unused moves
YOUR WALLET0 Coins carried forward
Golden powers and bank bonuses+0
Unused moves +0
Total gold awarded+0
THE ROAD AHEAD

Next boss: Round 3

Two more rounds before your next challenge.

1 / 3

    Continue skips this shop visit. Your gold and existing items carry forward, but you cannot return to this shop.

    AN INTERMISSION IN THE NUMBERWORLD

    The Index Shop

    Preparing for round 2 of 12

    0coins
    A cheerful clockwork owl merchant in a purple hat with an abacus and golden number tokens.

    A CURIOUS LITTLE CORNER OF THE NUMBERWORLD

    Curios for clever minds

    A little preparation beats a lot of panic.

    Permanent bonuses apply automatically. Use single-use items during rounds. You can leave without buying.

    Buying, replacing & selling

    You have two permanent and two single-use inventory slots. When both slots of a type are full, buying offers a choice of what to replace. Selling a permanent returns half the amount you paid, rounded down. Discarded single-use items give no refund. Rerolls cost coins and get more expensive each time you reroll during this shop visit.

    ✦ Runestone field guide — effects, charges & unlocks

    Rare one-use items enchant a chosen board square for the current round. They do not score anything when placed. Position matters: most effects trigger only on a merge or correct bank there. Each shop visit reveals at most one rare Runestone, even with rerolls. At most two enchanted squares can be active on the board.

    Available offers

    Choose a relic or tool for your build

    Your inventory

    2 permanent · 2 single-use slots

    BANK THIS POWER

    You have 60 seconds to enter the exact value.

    Time remaining 1:00

    Need a maths reminder?

    For a power such as 3⁴, multiply the base four times: 3 × 3 × 3 × 3. For a golden 3¹, enter 3. Only the exact final value can be banked.