Build a node.
Move the market.
A shared Sudoku board. Stocks that react to construction. See the connection in your first round.
Play against 3 labelled bots. Stop after the reveal or keep the same match going.
A rival you actually know.
Two humans. Two labelled bots. Secret plans, one shared reveal.
Connecting to your player record…
The market desk.
Explore tokenized stocks. Build a practice portfolio, or continue to a live trading venue with your own wallet.
CHROMA on pons
Official contract pending. The contract and trading link will appear here after the launch is confirmed.
Quotes load when you open the market desk.
| Asset | Indicative USD |
|---|---|
| Loading assets… | |
Your practice account
Saved in this browser. Practice only; no cash value.
- Paper cash
- $10,000.00
- Estimated paper equity
- $10,000.00 +$0.00 paper P&L
Trade with your wallet.
Select an asset to inspect its contract.
- Open the selected asset on 1inch.
- Confirm Robinhood Chain and match the token contract below.
- Review the venue’s live quote, fees and slippage. Sign in your own wallet.
The prices here are references. A live order requires an available route and sufficient funds, plus ETH for gas. Venue and asset eligibility apply.
Open 1inch ↗Trading opens on 1inch. CHROMA does not submit orders or move funds. A paper order never becomes a live order.
Practice positions
Practice order history
Wallet & onchain holdings
Connect an EVM wallet or paste a public address to read ETH and supported Stock Token balances on Robinhood Chain. This is not a player login. The lookup sends the address to our server and its RPC provider; it is not saved to your player record.
Connecting shares a public address. Adding the network requests a wallet confirmation. Neither action signs a transaction.
How this connects to CHROMA
The arena uses its own fictional sector economy. Match results are currently recorded on CHROMA’s server. Onchain entry fees, escrow and prize settlement are not active. A wallet connection does not change this.
Practice orders use indicative token prices derived from Robinhood’s underlying bid and ask, adjusted by the published token multiplier. The simulation excludes fees, slippage, liquidity limits and corporate actions. Practice funds cannot be deposited, withdrawn or redeemed.
Robinhood Stock Tokens provide economic exposure to the underlying security; they are not direct ownership of the underlying shares. Reference prices may differ from executable quotes. Access depends on the asset, jurisdiction and venue.
Stock Token structure · Quote source · Network terms
CHROMA is an independent project. Network and venue names do not imply endorsement.
Your match record
Saved on the server. This browser's player key reconnects you. Clearing browser data loses access to this key.
New here? Learn the loop.
01 / Claim a node
Choose an empty circle. Place a number from 1 to 9 that does not repeat in its row, column or 3 × 3 sector. Ordinary nodes score 1; the core scores 2.
02 / Invest before the reveal
Each sector has a fictional stock. Buy where you expect construction. A trade uses one of your three actions, just like building.
03 / Read your rivals
Plans stay hidden until everyone submits. Priority rotates. If two players target the same node, the earlier move wins it. A completed sector awards 5 points to its majority owner.
04 / Win the whole economy
After six rounds, construction points + portfolio profit ÷ 5 decide the winner. Shares are marked to the final price. Mission badges are personal goals, not extra points.
Playtest data & privacy
Game progress and optional feedback are saved under a random browser player key. Basic visit counts help us understand whether people try the game. The game does not request a name or email.
Turning this off stops future visit records. Game saves and feedback you choose to send still work. Clearing browser storage creates a different player identity.
Arena credits and practice funds have no cash value. Wallet lookups are read only. No token rewards.
Build the network. Own its upside.
Three actions. Nine companies. One shared economy.
Round settled
How your stocks moved
Your first round
Start with one open node. Then try buying a share in the same sector.
Core sector
Sector exchange
Fictional companies. Prices settle after every round.
| Company / sector | Price | Round change | Your shares | Restored |
|---|
Price = previous close + 3 per restored node − 2 operating cost + 5 on first sector completion. Public contract: +3 when its announced sector has new construction. Floor: 5 credits. Every order costs 1 action + 1 credit. No short selling.
Field manual Rules, scoring & controls
Build a legal network
Use frequencies 1–9 once in each row, column and 3×3 sector. Diamond markers are fixed clues. A move that prevents a valid solution is rejected.
Plan, then reveal
Queue up to three moves per round. Solo matches have three bots. Friend matches have two humans and two bots. Rivals plan without seeing your queue. Moves resolve one at a time in the displayed priority order; the first architect changes each round. An occupied node or conflicting move fails without losing existing points.
Control the sectors
A new node earns 1 point, or 2 in the central core. Once a sector is full, the player with the most claimed nodes receives 5 bonus points. Tied players split the bonus. Fixed clues count for no one.
Finish on top
The match ends after six rounds or when the board is full. Highest score wins; equal scores share victory. Use arrow keys on the board and number keys to place a frequency. Solo and daily matches allow two suggestions. Friend matches have no hints. Suggestions do not predict rival plans.
How investing affects the match
All four players start with 100 fictional credits. A buy or sell uses one of your three actions. Orders fill at the round’s opening quote; all nine prices then update from the revealed construction results. Queued orders reserve cash and shares. Holdings are limited to four shares per company.
Your total score is construction points + (cash + current share value − 100) ÷ 5. Investment losses reduce your score. Remaining shares are valued at the final closing price; you do not need to sell before the match ends. Share ownership does not grant node control. Bots follow the same trading rules.
Would you play another round?
What got in the way? Optional.
Optional. Honest feedback helps shape the next version.