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Casino maths lab · 18+ · free forever

Know the odds
before you sit down.

AceFever teaches the maths behind casino games: the rules, the real odds and the house edge on every bet. You learn here. You don't play for money here.

📚 36 guides🔄 Updated Apr 27, 2026🧮 Free calculators🛡️ Safer play first
02The drill table

Practise basic strategy at the table.

Every hand is dealt at random. Choose your move and get the maths straight away. Keyboard shortcuts: H, S, D, P.

BLACKJACK PAYS 3 TO 2 · DEALER STANDS ON ALL 17s
6 decks · S17 · DAS
Streak 0Acc –
Dealer shows
Your hand ·
Choose the move that basic strategy says gives the lowest house edge.

Odds converter live

Decimal–
Fraction–
Implied–

Best edge on the floor

0.5%

Blackjack with perfect basic strategy. American roulette costs ten times that, at 5.26%.

05Your learning path

Three questions. One plan built for you.

Answer three questions and get your own learning plan. You don't have to pick from a menu of paths.

06Myth vs maths

Tap a card to bust a myth.

These are the beliefs that cost players the most. Each one gets a short answer with the maths.

Streak lab

“Red came up 5 times, so black is due.”

We spin a European wheel 200,000 times. Then we look only at the spins that came right after five reds in a row.

Click the button to run the experiment.
Responsible gambling

No strategy guarantees a profit.

The house edge wins over time, whatever you learn here. Set a budget and a time limit before you play, never chase losses, and stop if it stops being fun. 18+ only.

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Anywhere · BeGambleAware.org
07Build with us

Vote on what we build next.

Readers set the editorial roadmap. Vote for one tool or more.

Your Fever Score

You earn XP by learning: drilling hands, running simulations and busting myths. Your progress stays on this device.

The Weekly Edge

One chart, one myth and one drill every Friday.

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