CrosswordCampaigns

Crosswords with real stakes

A good clue
deserves a great prize.

Create a crossword for your community, fund it with a supported asset, and let the first solver take the prize wherever they want it.

Create a campaignFind a puzzle
Free
to solve
Locked
before launch
Flexible
winner payout
Today's prize
Open

Presented by Open Web Collective

The Open Web Jackpot

First correct solve75.00 USDC
Open the puzzle
Illustrative campaign
Fund withETH · USDC · SOL · morePrize locked asUSDC on NEARWinner choosesAsset + destination

Open now

Puzzles with something on the line.

Free to enter. Transparent prize. One satisfying final square.

Explore all campaigns

Preview catalog — campaign data below is illustrative until the v2 contract is deployed and funded.

Open

Presented by Open Web Collective

The Open Web Jackpot

A crisp puzzle about protocols, public goods, and the tiny pieces that make the open web work.

Prize75.00 USDCCloses in 3d 2h
186 playingSolve the preview

For creators

One idea. Four honest steps.

The experience keeps puzzle making playful and prize movement explicit.

  1. 01

    Write the puzzle

    Build clues yourself or buy a single AI-assisted draft through x402.

  2. 02

    Set the promise

    Choose the sponsor story, campaign window, and exact USDC prize.

  3. 03

    Fund from anywhere

    A live Intents quote routes a supported asset into escrow.

  4. 04

    Share the link

    Solvers play for free. The first valid proof unlocks the payout.

Two new workflows

A puzzle is the fun part. The rails disappear.

A

Cross-chain jackpot

Fund on one chain. Reward on another.

A sponsor can send a supported asset into locked NEAR USDC. The winner can route the result to a supported destination without needing a NEAR wallet to solve.

Base ETH→Locked USDC→Solana USDC
B

x402 campaign

Pay the tool, not the player pool.

AI generation is a discrete x402 service with its own receipt. The creator funds the complete prize separately, keeping the economics visible and solvent.

Prompt→x402 receipt→Editable puzzle

Your community knows the answers

Give them a reason to fill the grid.

Start a campaign