Where to Play: Sweepstakes, Prediction Markets and Sportsbooks in the US
Where you can play in the United States depends on your state, and the product determines the legal basis. Sportsbooks are licensed state by state. Prediction markets such as Kalshi claim federal oversight and are disputed by some states. Sweepstakes casinos rely on sweepstakes law and are being restricted. Check your state first, then the product.
Which regulator covers the product?
Sportsbooks hold licences from the state gaming regulator where they operate, and are available only in states that allow online betting. Event contract venues cite federal oversight: the CFTC designates contract markets. Sweepstakes casinos cite sweepstakes law and a free method of entry, not gambling licences. These are three different legal bases, and a ruling on one does not settle the others.
How do I check state availability?
Use the operator's own state list, then compare it with your state regulator's notices. Lists change, and one operator can be open in one state and excluded in the next. If a site does not list your state, treat the product as unavailable, even if you can open the page.
What should I check on each product type?
For a sportsbook: state availability, minimum age (21 in most states) and promotion terms by state. For a prediction market: the contract rules, fees, settlement source and the fact that a contract can lose its full stake. For a sweepstakes casino: what the coins are worth, how redemption works and whether the operator faces litigation over its model.
How should I read the list below?
It is the operators CasinoX covers, ordered by fit for readers following the grey zones, not by commission. Each entry gives a short take and the one limit to know.
What about responsible gambling?
Betting is for adults aged 18 and over, and it can lose you money. Read our responsible gambling page, set limits before you start and stop if it stops being fun. This list is the operators the blog covers, ordered by fit for our readers and not by commission, and our affiliate disclosure explains how the site is funded.
The operators we cover
- 1

Stake.us
Stake.us is the sweepstakes casino in our file: a large slots library paid out through crypto and bank redemption, available where real-money online casinos are not. The finding to hold on to is that Gold Coins have no cash value and several states are excluded, among them Idaho, Kentucky, Michigan, Nevada and Washington per sources. The operator also faces class action litigation over its model.
- 2

Kalshi
Kalshi is registered with the CFTC as a designated contract market, which makes it the reference case for regulated event contracts in the US. It has a low general minimum deposit and many funding methods. The limit: it is in legal disputes with several states, and any contract can lose its full stake.
- 3

Polymarket
Polymarket offers deep markets on major events and a self-custody wallet model on the Polygon network. Its separate regulated US product is distinct from the international site. The limit: the international site is blocked in the US, UK and several other countries, and its international terms claim no licence.
- 4

DraftKings Sportsbook
DraftKings Sportsbook is the licensed-state benchmark: regulated by the state gaming authority wherever it operates, with deep coverage of major US leagues. It is the contrast to the grey-zone products on this site. The limit: it is available only in licensed states, the minimum age is 21 in most of them and offers vary by state.
- 5

FanDuel Sportsbook
FanDuel Sportsbook is the other licensed-state benchmark, backed by Flutter Entertainment and regulated by state authorities. It fits readers who want to compare a licensed product with a sweepstakes or event-contract one. The limit: it operates only in participating states plus Ontario and Puerto Rico, and promotions vary by state.
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Codes on the desk
Sign-up boosts we checked for this site, each with the day we looked. 18+, T&Cs apply.
Terms for each one on Boosts
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