Vault codes and achievement rewards

Codes can unlock achievements

When a code includes an achievement, redeeming it unlocks that achievement for you, with its usual one-time reward and unlock notification. The reveal and your access log list it next to any coins and cosmetics.

• Achievements you already have stay exactly as they were, with their original unlock date; nothing is granted twice.
• Cosmetics you already own are kept and the code still opens.
• Coins from codes never count toward the 600-coin daily earning limit.

Scheduled and limited codes

A code may open on a specific date, close on another, or be meant for certain members only. A few codes can even be redeemed more than once per account.

Coins and exclusive cosmetics for every achievement

Each achievement now grants a deliberate one-time reward verified by the server. Ordinary milestones award 30–75 Arcade coins, while capstone challenges across 2048, Flutter, Snake, Hard Sudoku, Fruit Slice, Tower Stacker, your Archive and Discovery unlock 13 exclusive items — including the Obsidian relic and Celestial prism artwork frames, the Archivist’s plume and Champion’s halo avatar decorations, four profile badges and five profile titles.

• Every achievement reward is granted at most once per account and recorded in your wallet ledger as an Achievement transaction.
• Milestone coins are exempt from the 600-coin daily play and Coin Slots limit: reaching the daily play cap never clips an achievement reward, and achievement coins don’t reduce your daily play room.
• If you already own a reward item when a milestone is granted, ownership is preserved without duplicate grants or synthetic coin compensation.
• Previously unlocked achievements are automatically backfilled so existing accounts receive their full historical coins and cosmetics.

Hidden discovery achievements

Secret milestones stay genuinely hidden — their name, goal, icon and reward are masked on cards, detail views and search until you meet their reveal condition.

Codes made of words

Secret codes can now be words or short phrases, such as SHADOW or OPEN THE VAULT. Letter case doesn’t matter and extra spaces are ignored, so “open the vault” works too. Codes you already have keep working exactly as before.

The Vault

A hidden door that answers to secret codes. Each code opens once per account and can hold coins, exclusive avatar decorations, profile badges, titles or a bundle. Secret items stay out of the shop until you unlock them, then appear with your other cosmetics.

• Spaces, dashes and letter case don’t matter.
• After several wrong codes the vault rests for a while.
• Your finds are listed below the door.

The Lab

A searchable gallery of pretend experiments: an uphill volume slider, a button that runs away, a subscription-cancellation maze, an awkward date picker and a password gauntlet. Nothing in the Lab touches your real settings, account or coins.

• Every experiment has Reset and Exit, and Easy mode swaps in a plain, keyboard-friendly version.
• The demo tone has its own quiet volume and starts muted.

Coin Slots

A three-reel machine in the Arcade that plays with coins you’ve earned. The server draws every spin when you press Spin; the paytable shows the exact chance of every line and the average return.

• Bets of 1 to 5 coins, one spin per press and no autoplay.
• Each result shows the bet, the payout and your net profit or loss.
• You can wager up to 300 coins in any 24 hours. Interrupted spins are recovered without charging twice.
• Coins have no cash value and can’t be bought or cashed out.

Profile badges and titles

Badges and titles from the Vault can be worn on your profile. They show next to your name on Home and in the account menu.

Retries never redeem twice

Each redemption attempt carries its own identifier. If the answer gets lost and you try the same code again, the Vault shows the original result instead of granting it a second time.

Coordinated reward reveal & one-click Equip

When you earn an achievement, the celebration reveals both the medal and its granted coins or cosmetic artwork, with a button to equip a newly unlocked frame, decoration, badge or title on the spot. Multiple backfilled milestones are grouped into a single summary notification instead of playing back-to-back.

Reward filters and achievement-exclusive views

Narrow the achievement cabinet by Coins, Frames & decorations or Badges & titles alongside status, group, game and search. In Customization (Artwork frames and Profile) and the Arcade shop, a dedicated Achievements filter lets you browse and equip milestone-exclusive cosmetics.

Summoning the Vault

Arriving at the Vault now builds it in front of you: smoke and embers gather, the seal rises and turns into place, and the access console assembles its frame around the code panel before its screen lights up.

• The full entrance plays once per visit, later visits get a short one, and nothing replays after an answer.
• Optional sound follows the entrance step by step and respects your Arcade sound setting and the switch on the page.

The access console

The code field and buttons sit on the console's screen and move with it, so they stay exactly where the console is. They are still the page's own controls, so the keyboard, screen readers and password managers work as before.

• On desktop the console leans toward your pointer and edges closer when you reach for it. On phones it keeps a steady view with a gentle drift, with no hover or motion permission needed.
• While you check a code, the dial ratchets, the scanner sweeps the screen and energy runs down the link into the vault.

Opening the vault

Once the server accepts a code, the console steps aside, the rings disengage and the iris door swings open. Your rewards then come forward out of the light as cards you can inspect, and Continue brings the console back with the result.

• Rewards are only shown after the server confirms them, and a skipped or interrupted animation never hides or repeats one.
• Reduced motion and Motion: Off show every state at rest. Browsers without 3D graphics get the drawn seal instead.

Summon the Vault

Opening the Vault calls it up: the chamber stirs, a red aura gathers over a sigil on the floor and a thick, layered vault rises into place, its code panel locking in beside it. The full sequence plays once per visit; after that it settles in quickly, and any key, tap or Skip intro jumps straight to the code field.

• The vault follows your pointer slightly on desktop and stays steady on touch screens.
• Optional sound: a low hum while the vault is on screen, plus mechanical sounds for each answer. It follows your Arcade sound setting and the switch on the page.
• Reduced motion and Motion: Off show the vault at rest with no entrance. Browsers without 3D graphics get the drawn seal instead.

Opening the vault

Your code is sent the moment you submit it. Once the server accepts it, the seals part, the doors swing open and light floods out as each reward leaves the vault as a card. Choose a card to see it up close: decorations on your own avatar, frames around your own covers, titles on your name. Continue keeps the result on the panel, and View rewards brings the cards back.

• Nothing is shown as yours until the server confirms it, and interrupting the animation never hides or repeats a reward.
• Wrong and expired codes, codes you’ve already claimed, too many tries and connection problems each have their own reaction, and none of them replays the unlock.

Clearer answers

The vault now tells you whether a code is wrong, whether it exists but has expired or run out, or whether your account already claimed it, without revealing anything about other codes.

• If your connection drops mid-attempt, the vault checks your access log instead of asking twice. Rewards are never granted twice.
• Your access log lists every seal you’ve broken and what it held.

One daily coin limit

Net Coin Slots winnings share the 600-coin daily limit with game rewards, so the machine can’t be used to earn past it. Coins from Vault codes don’t count toward the limit.