How Do Online Casino Bonuses Work?

Most promotions are variations on a handful of structures.

The headline percentage tells you almost nothing on its own. A 400% match capped at a modest maximum bonus is a different product from a 100% match with a high cap, and both are different again once the wagering requirement is applied.

A wagering requirement is a turnover target. Until you reach it, the bonus and anything won with it are locked.

Two details change the size of that target dramatically, and offers differ on both:

• The multiplier. 20x, 30x, 40x — the higher the number, the more you must stake.
• The base it applies to. A requirement on the bonus alone is far smaller than the same multiplier applied to deposit plus bonus. Always read which one is in use.

There is a second reason the base matters. Every dollar of that turnover is exposed to the game's house edge. Clearing $4,000 of wagering on a game with a 4% edge has an expected cost of roughly $160 in the process, which is the real price of a bonus and the number most players never calculate. Wagering requirements covers the mechanics in more depth.

Not all play clears wagering at the same rate. Casinos publish a contribution table because low-edge games would otherwise let players clear a requirement far too cheaply.

The Lunaris table works like this:

• Non-progressive slots — 100%
• Video poker — 20%
• RNG blackjack variations — 10%
• Roulette — 10%
• Live games — 1%

The consequence is straightforward arithmetic. A $10 bet on a qualifying slot moves your progress by $10. The same $10 bet on roulette moves it by $1. The same bet on a live table moves it by 10 cents. To clear $4,000 of wagering purely on 10% games you would need $40,000 in turnover — which is why the contribution table, not the headline percentage, usually decides whether an offer is realistic.

Here is the full journey, using the standard Lunaris terms.

• Step 1 — Deposit. You deposit $100, which meets the $100 minimum required to qualify for a bonus.
• Step 2 — Bonus credited. A $100 bonus is added. The maximum bonus issued is $100, so this is the ceiling regardless of the headline match percentage.
• Step 3 — Balance. Your playable balance is $200: $100 of your own funds plus $100 in bonus credit.
• Step 4 — Wagering target. The requirement is 20x on deposit plus bonus: $200 × 20 = $4,000 in eligible wagers.
• Step 5 — Clearing it. On non-progressive slots contributing 100%, every dollar staked counts fully, so $4,000 of slot turnover completes the requirement. On a 10% contribution game it would take $40,000.
• Step 6 — Withdrawal. Once wagering is complete and verification is done, you can request a payout. Because the bonus is sticky, the $100 bonus amount is removed during withdrawal approval; what pays out is your own funds and net winnings.

A second, simpler case from the same terms: a $100 courtesy bonus with no deposit attached carries a 20x requirement on the bonus alone, so the target is $2,000.

The distinction decides what you can eventually take out.

• Sticky bonus. The bonus amount is playable but never withdrawable. It is deducted when a withdrawal is approved. Unless a Lunaris promotion states otherwise, its bonuses are sticky.
• Non-sticky bonus. Your deposit and the bonus are kept separate; you play with your own money first and can typically withdraw it without triggering bonus terms, forfeiting only the bonus itself.

Neither is inherently better. A sticky bonus gives you a larger balance to play with; a non-sticky one preserves flexibility. What matters is knowing which you accepted, because it changes what "withdrawable balance" means on your account.

Also watch for maximum cashout caps on some promotions, which limit how much can be withdrawn from bonus winnings regardless of how well the session went.

• Myth: a bonus is free money. Reality: it is credit with a turnover obligation attached, and clearing that turnover has an expected cost driven by the house edge.
• Myth: the biggest percentage is the best offer. Reality: the maximum bonus cap, the wagering multiplier, the base it applies to and the contribution table together outweigh the headline number.
• Myth: any game clears wagering. Reality: contribution rates differ by a factor of a hundred between slots and live games, and some games may be excluded entirely.
• Myth: I can withdraw at any time and keep the bonus winnings. Reality: withdrawing before wagering is complete normally forfeits the bonus and anything won from it.
• Myth: bonus play changes the odds of the games. Reality: the games behave identically. Bonuses change your bankroll and your obligations, never the random number generator or the paytable.

• Wagering requirement — the turnover target that unlocks bonus winnings.
• Contribution table — the percentages that set how fast each game category clears it.
• Sticky bonus — bonus credit that is playable but removed at withdrawal.
• Maximum cashout — a cap on withdrawable winnings from a promotion.
• Free spins — slot spins granted as a bonus; see what free spins are.
• KYC — the verification step required before payouts are approved.
• Every one of these is defined in the casino glossary.

Lunaris publishes its bonus terms rather than deciding them case by case, which makes the arithmetic above directly applicable. The current offers are a 400% Slots Welcome Bonus for new players, limited to one use, a reload bonus of up to 200% for eligible returning players, and 10% Rocket Cash. The minimum qualifying deposit is $100 and the maximum bonus issued is $100.

The standard wagering requirement is 20x, calculated on deposit plus bonus, unless a specific promotion states different terms. The contribution table above applies, and bonuses are not offered on live casino games — so the slots library is where bonus play belongs, while the live dealer tables are best treated as separate, bonus-free entertainment. Current offers are listed on the promotions page, and the wider casino lobby shows which titles fall into each contribution category.

Not every player or deposit qualifies for every promotion. If you believe you were eligible but could not claim an offer, contact support within 24 hours of the deposit, or email [email protected] with the details; the team will review the account. The toll-free line is 1-888-606-4017.

One closing point of perspective: a bonus extends how long a bankroll lasts, but it does not turn a negative-expectation game into a positive one, and no promotion should be treated as a way to make money. Read the terms before you claim, decide in advance whether the turnover is realistic for how you actually play, use the deposit limits in your account, and remember that online casino play is for adults aged 21 or over, or the legal gambling age in your jurisdiction if higher.