Guide · Updated July 2026
Every online casino bonus comes attached to a wagering requirement — a multiple of the bonus amount (sometimes the deposit too) that you need to bet through before any winnings become withdrawable. Our wagering requirements guide covers the full mechanics of how that multiple is calculated, but there's a second, less-discussed layer sitting underneath it: not every bet you place counts the same amount toward that requirement. This is called game weighting or game contribution, and it's specified in the bonus terms — usually in a table or a short clause most players skim past — as a percentage next to each game category.
A slot might carry a 100% contribution rate, meaning every Rand you wager on it counts fully toward your wagering target. A table game like blackjack or roulette, by contrast, is commonly weighted anywhere from 0% (fully excluded — it counts toward nothing) to around 10%, meaning you'd need to wager R1,000 on that table game to make the same R100 of progress that a single R100 slot spin would deliver. This single mechanic is responsible for more confused, frustrated players than almost any other bonus term, simply because it isn't always front and centre when a bonus is advertised.
The maths behind it
Weighting isn't arbitrary — it's a direct response to how much theoretical edge the casino holds on each game type.
A typical online slot runs at 94–97% RTP, meaning the house edge sits somewhere around 3–6%. Over the volume of spins needed to clear a wagering requirement, that edge reliably nets the casino a positive return even while paying the bonus contribution at 100% — the maths still works in the operator's favour on average.
Blackjack played with correct basic strategy can push the house edge below 1%, sometimes closer to 0.5%. If a casino let players wager bonus funds through blackjack at 100% contribution, a skilled player could clear a 35x wagering requirement while the casino's expected mathematical profit from that same wagering volume, per our house edge guide, would be a fraction of what it earns from slot-based wagering — potentially not even covering the cost of the bonus itself.
European roulette carries a house edge around 2.7%, higher than blackjack but still well below most slots. That's why roulette is very commonly weighted at a low but non-zero rate — often 10–20% — rather than fully excluded the way blackjack sometimes is, reflecting its middling position on the house-edge spectrum.
Live blackjack, baccarat and roulette carry essentially the same house edges as their RNG table-game equivalents, so they're typically weighted the same low percentage — and the added studio, dealer and streaming costs of live dealer games give operators an extra reason not to want heavy bonus-funded volume flowing through them at full contribution.
Any game where optimal play meaningfully shrinks the house edge — some video poker variants under perfect strategy, for instance — tends to attract the same low-contribution or exclusion treatment as blackjack, for identical reasons.
Say you claim a R1,000 deposit match bonus with a 35x wagering requirement. That means you need to wager R35,000 in total before any resulting winnings can be withdrawn. If you play that entire R35,000 through a slot weighted at 100%, every Rand wagered counts fully — R35,000 wagered clears the requirement exactly.
Now suppose you instead try to clear it through roulette, weighted at 10%. Every R100 you wager on roulette only contributes R10 toward your target. To reach the same R35,000 of wagering progress, you'd need to physically wager R350,000 through the roulette table — ten times the nominal requirement. If roulette were weighted at 0% (fully excluded, as blackjack often is), no amount of wagering on it would make any progress at all, and you could play for hours without your wagering bar moving a single Rand.
This is exactly why reading the game-weighting table inside a bonus's full terms matters as much as reading the headline wagering multiple. A "35x wagering" bonus sounds identical whether it's slot-friendly or table-game-hostile, but the real-world effort required to clear it can differ by an order of magnitude depending entirely on which games you personally enjoy playing.
Mzansi Pro-Tip
Before claiming any bonus, don't just check the wagering multiple — scroll to the game-weighting or "contribution" table, usually a few paragraphs further into the full terms and conditions. If you're primarily a table-game player, a bonus that looks generous on paper (say, a low 20x requirement) can end up requiring far more real wagering effort than a 35x bonus that's slot-friendly at 100% contribution. Match the bonus to how you actually intend to play, not just to the headline number.
Our guide to reading casino terms and conditions covers exactly which clauses are worth your time to check before you opt in, and our bonus terms glossary translates the specific phrasing operators use for game weighting, like "contributes at" or "counts toward," into plain English.
It's fair to ask why casinos allow any table-game wagering progress at all, rather than simply excluding those games from bonus play altogether. The answer is largely about player experience and fairness perception. A bonus that's flatly unusable for anyone who prefers blackjack or roulette over slots would frustrate a meaningful share of the player base and likely draw complaints, negative reviews and regulatory scrutiny in stricter jurisdictions. A small, non-zero contribution rate — even just 10% — lets table-game players make some progress, feel the bonus is at least partially theirs to use, and gives operators a defensible middle ground between "fully open" (which would be mathematically risky given low table-game house edges) and "fully closed" (which would feel punitive).
There's also a practical anti-abuse angle. Game weighting, alongside maximum bet limits per spin/hand during active wagering (often capped around R50–R100 per round to prevent large, edge-minimising bets), is one of the main tools operators use to stop bonus abuse — where a player with enough bankroll could otherwise use a low house-edge game with big, carefully sized bets to clear wagering with minimal realistic loss exposure to the casino. Reducing the contribution rate on exactly those games closes that loophole without banning the games outright.
If slots are your main interest, game weighting barely affects you in practice — most welcome packages, free spins offers and deposit matches at operators like Pantherbet, 10bet and Hollywoodbets are built with slot contribution at or near 100% as the default assumption, since slots are also where the bulk of bonus-funded play happens industry-wide. Our guides on maximizing welcome bonus value and claiming no-deposit bonuses both assume slot-first play for exactly this reason.
If you're primarily a table-game player, the calculus changes meaningfully. Rather than chasing the largest headline bonus amount, prioritise bonuses with either a genuinely low wagering multiple (so even a reduced contribution rate results in a manageable total wagering figure) or ones explicitly marketed as usable across table games — some cashback-style promotions, covered in our cashback bonuses guide, apply more evenly across game types since they're calculated on net losses rather than turnover, sidestepping the weighting problem in a different way. It's also worth simply accepting that some bonuses genuinely aren't designed with table-game players in mind, and there's no shame in skipping a promotion that doesn't suit how you actually want to play — a bonus you can't realistically clear isn't free money, it's a wagering trap dressed up as one.
Common questions
Table games like blackjack and roulette carry a much lower house edge than most slots — sometimes under 1% for blackjack versus 3–6% for typical slots. Full-contribution wagering on such low-edge games would let players clear bonuses with far less realistic cost to the casino, so operators reduce or exclude their contribution rate to keep the maths balanced.
It's usually further down in the bonus's full terms and conditions page, listed as "game contribution," "game weighting" or a percentage table next to game categories. It's rarely shown on the headline promotional banner, so you need to click through to the full terms.
Most do, but not universally — some operators cap or reduce contribution on certain progressive jackpot slots or specific high-volatility titles. Always check the specific bonus terms rather than assuming every slot in the lobby qualifies at full rate.
Often not efficiently, and sometimes not at all — many operators weight blackjack at 0%, meaning wagers placed on it don't count toward the requirement whatsoever. Check the specific game weighting table before assuming your preferred table game will make any progress.
Not automatically — a low multiple combined with a very low table-game contribution rate can still add up to a large real wagering figure. Multiply the stated requirement by the inverse of the contribution percentage to estimate your actual required turnover before comparing offers.
Yes. No-deposit bonuses and free spins winnings are subject to the same weighting rules as deposit bonuses, and are often restricted to slots-only play entirely, with table games excluded outright during the wagering period.
Weighting achieves the same mathematical outcome with simpler bonus terms — one wagering figure applies to the whole bonus, and the contribution percentage adjusts how fast different games count toward it, rather than needing a separate wagering multiple for every game category.
Not always excluded, but very commonly reduced — typically in the same low single-digit to 10% range as their RNG table-game equivalents, for the same house-edge and studio-cost reasons.