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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.

US · 1-800-GAMBLER, free and confidential, 24/7
UK · GamCare 0808 8020 133 · GamStop self-exclusion
Anywhere · BeGambleAware.org
07What's new

Recently added to AceFever.

The site changes as we add tools and fix what readers report. Spotted something wrong? Tell us.

  1. Blackjack toolsFull basic strategy chart, house edge calculator with real-world table presets, and a true count calculator.Open the tools →
  2. How each game worksEvery game page now explains the goal, a round step by step, and the house edge on each bet, with a printable cheat sheet.See blackjack →
  3. Guides in reading order36 guides grouped by game, with progress saved on your device and a summary at the top of every article.Browse the guides →
  4. Safer play self-checkA private 2-minute check-in, blocking tools and helplines on the responsible gambling page.Open it →
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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