Gambling guides for adults
Gambling math, rules and myths explained
Guides on blackjack, slots, roulette and bonus terms, with worked examples, honest numbers and no promises of winnings. For adults only, 18+.
Illustration: playing cards. No real money, no real cards.
Numbers first
Four numbers worth knowing
Guides
Pick a topic
GuidesBlackjack
Rules, basic strategy, house edge and bankroll basics for blackjack, explained with worked examples. No promises, 18+ only.
GuidesSlots
How slot machines work: RTP, volatility, random number generators, free spins and bonus features, explained with simple math.
GuidesTable games
House edge and payouts in roulette, baccarat and craps, with the math behind every bet. Informational, 18+ only.
GuidesBonuses
How to read casino bonus terms: wagering, maximum bet, time limits and game contribution, with worked calculations.
GuidesMyths
Hot machines, betting systems and the gambler's fallacy: common gambling myths checked against the math.
GuidesResponsible gambling
Practical guidance on budgets, limits and warning signs, plus where to look for help. Informational only, for adults.
Calculators
Check the numbers yourself
Wagering requirement calculator
Enter deposit, bonus and multiplier to see how much you must wager, how many rounds that is and what it costs on average. Runs in your browser.
CalculatorHouse edge cost calculator
Estimate the average cost of a session from stake, rounds and house edge. A theoretical average, not a forecast.
CalculatorBankroll planner
Set a session budget and see how many units it covers at a chosen stake. Nothing is saved.
How we write
Three rules we keep
Numbers, not promises
We explain the arithmetic of games and bonuses. No page promises winnings or offers a system that beats the house.
Hypothetical means hypothetical
Examples with invented figures are labeled as such. Real figures come with a source and a date.
No operator picks
We do not rank or recommend casinos. Everything here is informational and for adults aged 18 or over.