Quick Answer
When asking which online casino game offers the highest RTP (Return to Player), the answer is almost always video poker variants, specifically Jacks or Better with optimal strategy, which can reach an RTP of 99.54% or higher. However, under the Interactive Gambling Act 1997 (IGA), Australian players are prohibited from accessing online casino games offered by unlicensed offshore operators. The only legal online gambling options for Australians are sports betting and lotteries (via licensed providers). Therefore, while high-RTP games exist in theory, Australian players must be extremely cautious about where they play, as the IGA makes it illegal for offshore casinos to offer these games to Australian residents.
Understanding RTP in Online Casino Games
RTP (Return to Player) is a theoretical percentage that indicates how much of all wagered money a game will return to players over an extended period. For example, a 98% RTP means that for every $100 wagered, the game will theoretically pay back $98, with the remaining 2% representing the house edge. Higher RTP means better long-term value for the player.
It is crucial to note that RTP is calculated over millions of spins or hands. Individual sessions can vary wildly. No game guarantees a win, and short-term variance can be high.
Top Games with the Highest Theoretical RTP
Below are the categories of casino games that typically offer the highest RTP, assuming perfect strategy is used (where applicable).
1. Video Poker (e.g., Jacks or Better, Deuces Wild)
- Jacks or Better (9/6 variant): With optimal strategy, RTP can reach 99.54%. This is the gold standard for high RTP.
- Deuces Wild (full pay): RTP can exceed 100% in rare cases (e.g., 100.7% for some versions), but these are extremely rare and often require perfect play.
- Why it’s high: Video poker combines skill (card selection) with chance, allowing players to reduce the house edge significantly.
2. Blackjack (with Basic Strategy)
- Standard blackjack: Using basic strategy (e.g., hitting, standing, doubling down correctly), RTP can reach 99.5% or higher.
- Variations: Single-deck blackjack with favourable rules (e.g., dealer stands on soft 17, double after split allowed) can push RTP above 99.7%.
- Caveat: Side bets (e.g., insurance, perfect pairs) drastically lower RTP. Stick to the main game.
3. Baccarat (Banker Bet)
- Banker bet: RTP of approximately 98.94% (after commission).
- Player bet: RTP of about 98.76%.
- Why it’s popular: Simple rules, no player decisions, and a very low house edge.
4. Craps (Pass Line / Don’t Pass)
- Pass Line bet: RTP of 98.59%.
- Don’t Pass bet: RTP of 98.64%.
- Optimal play: Avoid prop bets (e.g., hardways) which have RTP as low as 80%.
5. European Roulette (Single Zero)
- Even-money bets (e.g., red/black, odd/even): RTP of 97.3%.
- American roulette (double zero): RTP drops to 94.74% due to the extra house edge. Always choose European or French roulette.
6. Certain Slot Games (High RTP Variants)
- Some online slots offer RTPs of 98% to 99%, such as:
- Mega Joker (NetEnt): 99% RTP (when using supermeter mode).
- Blood Suckers (NetEnt): 98% RTP.
- 1429 Uncharted Seas (Thunderkick): 98.6% RTP.
- Caveat: Slots are purely luck-based, with high volatility. Even high RTP slots can drain your bankroll quickly in the short term.
Why RTP Isn’t Everything
While high RTP is attractive, other factors matter for Australian players:
- Volatility: A high RTP slot with extreme volatility (e.g., Mega Joker) can be very risky. Low volatility games (e.g., classic 3-reel slots) offer smaller, more frequent wins but lower RTP.
- House edge vs. skill: Games like blackjack and video poker require skill to achieve the advertised RTP. Mistakes can drop the RTP to 95% or lower.
- Bonus terms: Many offshore casinos offer bonuses that come with wagering requirements. These can effectively reduce the RTP of any game.
Australian Laws and the IGA 1997
The Interactive Gambling Act 1997 (IGA) is the primary federal law regulating online gambling in Australia. Key points relevant to high-RTP games:
- Prohibition on online casinos: The IGA makes it illegal for operators to offer “click-to-play” online casino games (e.g., slots, blackjack, roulette) to Australian residents. This includes all the high-RTP games listed above.
- Offshore loophole: While the IGA targets operators, it does not explicitly criminalise players who use offshore casinos. However, these casinos are unregulated by Australian authorities, meaning no consumer protections, no dispute resolution, and no guarantee of fair RTP.
- Legal alternatives: The only legal online gambling in Australia is:
- Sports betting (via licensed Australian operators like Tabcorp, Sportsbet).
- Lotteries (e.g., Oz Lotto, Powerball).
- Keno (via licensed venues).
- Risk of offshore play: Playing at unlicensed offshore casinos exposes you to risks such as identity theft, unfair game algorithms, and difficulty withdrawing winnings. The Australian Competition and Consumer Commission (ACCC) has issued warnings about this.
Key Takeaways for Australian Players
- Highest RTP games are video poker (99.54%) and blackjack (99.5%+), but these are illegal to offer to Australians under the IGA 1997. You cannot legally access them from a licensed Australian provider.
- If you choose to play at offshore casinos, you do so at your own risk. No Australian regulator will help you with disputes. Always verify the casino’s licensing (e.g., Malta Gaming Authority, UK Gambling Commission) and check RTP certifications from independent auditors like eCOGRA or iTech Labs.
- For legal gambling in Australia, the highest RTP options are:
- Sports betting: RTP varies by market but can be 95-98% for major sports (e.g., AFL, NRL, horse racing).
- Lotteries: RTP is typically low (around 50-60%), but prizes are large and tax-free.
- Never chase RTP alone. High RTP does not guarantee a win. Set a budget, play for entertainment, and never gamble money you cannot afford to lose.
- Responsible gambling: If you or someone you know is struggling with gambling, contact Gambling Help Online (1800 858 858) or visit gamblinghelponline.org.au for free, confidential support.