Real questions.
Simulated conviction.

Demo balance uses simulated funds. No real money, wallets, or orders. Independent demo · Not affiliated with Polymarket. No investment advice.

1. Explore open markets. Discover paginated markets by 24-hour volume, or select a short crypto round.
2. Choose a side. Buy Yes or No shares with virtual funds. A price of 40¢ implies a 40% market probability, not a guarantee.
3. Practice a trade. Buys use the current ask; sells use the bid. Fills are immediate and capped at displayed top-of-book depth. Market-specific taker fees are simulated from verified configuration; no slippage, gas, maker rebates or market impact are modeled.
4. Track your perspective. Average-cost basis, realized P&L and bid-marked unrealized P&L stay in your selected guest or server portfolio. Missing/stale marks show as unavailable.

General quotes expire after 30 seconds; crypto quotes after at most 10 seconds and never beyond round expiry. Historical snapshot mode is browse-only. Only official finalized payouts settle virtual holdings; no winners are invented. Legacy fills retain their original fee model; new fills record immutable fee inputs. Export your ledger before clearing browser data.

Your account

Canonical site: oddtopus.xyz. Used a.oddtopus.xyz? Your guest history stays in that browser on the old origin; open it and export a backup before leaving. Nothing is automatically transferred or imported into this origin or a server account. Old-subdomain passkeys do not work automatically here. Existing account recovery requires an independently saved recovery code and a new passkey; without a working key or code there is no admin recovery.

Guest · This browser only

Your guest portfolio stays in this browser and is backed up before sign-in or enrollment. A new server account starts separately with $10,000 virtual funds. Guest balances and trades are not imported.