Is There Any Skill in Online Casino Games or Is It All Luck?

What Does Skill Mean in a Casino Game?

Skill in a casino game means that the player can choose between actions with different expected returns. Making the stronger decision improves the expected result across repeated play, even though chance still determines what happens in each individual round.

For example, blackjack players may choose whether to hit, stand, double down, split, or surrender. Some decisions lose less money on average than others under the same rules and circumstances. Selecting the mathematically stronger action is therefore a genuine use of skill, even when the hand is ultimately lost.

This differs from trying to control a random outcome. A correctly functioning online slot determines results through a random number generator, while a roulette result depends on where the ball lands. Pressing a button at a particular moment or changing bets after a losing streak does not improve the probability of the next outcome.

It is also useful to separate skill during a game from informed selection before playing. Choosing an option with a lower house edge—such as a blackjack table with more favourable rules, a video poker game with a stronger paytable, or single-zero European roulette instead of double-zero American roulette—can reduce expected losses.

Skill affects expected return, not certainty. A correct decision can still lose, while a mathematically poor decision can occasionally win. The difference becomes meaningful only when similar decisions are repeated over many rounds.

Casino Skill vs Peer-to-Peer Skill

The amount of skill involved also depends on who the player is competing against. In house-banked games such as blackjack, Casino Hold’em, and Three Card Poker, the player makes decisions against fixed rules and a built-in casino advantage.

Traditional poker is different because players compete against one another while the operator usually collects a fee or rake. Stronger players may outperform weaker opponents over time, making skill a much larger part of long-term results than it is in most casino games.

How Skill Affects RTP

Return to Player (RTP) is the theoretical percentage of all money wagered that a game is designed to return across a very large number of rounds. A 96% RTP represents an average return of $96 for every $100 wagered across the game’s full range of outcomes—not a promise that an individual player will receive $96 after betting $100.

In games with no strategic decisions, the RTP is normally determined by the game rules, paytable, or selected bet. Once the wager has been placed, the player cannot improve the return through timing or technique.

In games involving strategy, the published maximum RTP usually assumes that the player follows a specified mathematically optimal approach. Mistakes can reduce the effective RTP and increase the amount expected to be lost over time.

For example, two blackjack players can use the same table and receive cards from the same ruleset, yet face different expected returns if one follows basic strategy and the other repeatedly makes weaker decisions. The random cards have not changed, but the value of the choices made with them has.

A higher RTP does not guarantee a profitable session. It generally means that less money is expected to be lost over extensive play, assuming the relevant rules and strategy requirements are followed.

Learn More About RTP

Casino Games Where Decisions Affect Expected Return

Some casino games require players to make decisions after a wager has been placed. When the available choices have different mathematical expected returns, making the stronger decision can reduce the house edge.

Examples include:

• Blackjack
• Casino Hold’em
• Three Card Poker
• Video Poker

This is not an exhaustive list, and the amount of skill involved varies considerably. Blackjack and video poker offer several meaningful decisions, while house-banked poker games generally require only a limited play-or-fold choice.

Blackjack

Blackjack combines randomly dealt cards with decisions that affect the expected value of each hand. Players cannot control which cards appear, but they can reduce expected losses by choosing the mathematically strongest action for their hand, the dealer’s upcard, and the table rules.

The main decisions in blackjack include:

• Hit or stand: Choose whether to draw another card or keep the current hand.
• Double down: Double the initial wager in exchange for receiving one final card.
• Split: Separate an eligible pair into two hands by placing an additional wager equal to the original stake.
• Surrender: Forfeit the hand and recover part of the original wager when the table rules allow it.

Each option has a different expected return depending on the situation. A decision that is mathematically correct can still lose that particular hand, while a poor decision can occasionally win. Skill is reflected in the expected result across repeated decisions rather than the outcome of one round.

Basic Strategy

Basic strategy is a mathematically calculated set of decisions for blackjack. It identifies the action with the highest expected value—or the lowest expected loss—for each combination of player hand and dealer upcard.

There is no single basic strategy chart that applies to every blackjack table. The correct decisions can change according to the individual table rules such as:

• The number of decks in use
• Whether the dealer hits or stands on soft 17
• Whether blackjack pays 3:2 or 6:5
• When doubling, splitting, and surrendering are permitted

Under favourable rules, accurate basic-strategy play can reduce the house edge to around 0.5% or sometimes lower. Less favourable rules—particularly a 6:5 blackjack payout instead of 3:2—can leave the player facing a substantially higher house edge even when every decision is made correctly.

Basic strategy does not overcome the house edge or guarantee a winning session. Its purpose is to avoid unnecessary mathematical mistakes and achieve the best available return (RTP) under the table’s rules.

Card Counting

Card counting is different from basic strategy. Instead of only choosing how to play the current hand, a counter tracks the changing proportion of high and low cards remaining in a blackjack shoe.

A shoe containing a greater-than-usual proportion of high cards can become more favourable to the player. High cards increase the likelihood of player blackjacks and can make doubling opportunities more valuable, while also increasing the chance that the dealer will bust after drawing.

Under sufficiently favourable rules and conditions, accurate card counting combined with appropriate bet variation can create a small positive expected return. However, this does not guarantee profit over a particular session or even over a substantial number of hands, as short-term results can still vary widely.

Card counting generally does not work in RNG blackjack because the virtual deck is normally reshuffled before each new hand. There is no continuing shoe whose remaining card composition can be tracked.

Live dealer blackjack uses physical cards, so counting may be theoretically possible at some tables. In practice, its usefulness is often restricted by multi-deck shoes, limited deck penetration, and frequent or automatic shuffling.

The number of decks alone does not make counting impossible. The more important question is how much of the shoe is dealt before the cards are shuffled, since an early reshuffle prevents the count from becoming sufficiently informative.

Our separate guide explains in more detail why card counting is usually impractical in online blackjack.

Casino Hold’em and Three Card Poker

Casino Hold’em and Three Card Poker are house-banked poker games. Unlike traditional poker, players compete against the dealer rather than against other players.

The skill element is more limited than in blackjack or peer-to-peer poker. In both games, the main strategic decision is whether the hand is strong enough to continue or should be folded.

Casino Hold’em

Casino Hold’em is based on Texas Hold’em hand rankings, but it is played against the house. The player and dealer each receive two private cards, while five community cards are used to form the strongest possible five-card hand.

After the first three community cards are revealed, the player must normally choose whether to fold or place an additional Call bet and continue. Folding ends the hand and forfeits the initial Ante, while calling commits more money before the final two community cards and the dealer’s hand are revealed.

The decision should be based on the strength of the current hand, its potential to improve, and the rules and payout table used by that version of the game. Continuing with every hand increases expected losses, while folding too often can mean giving up hands that are mathematically worth playing.

Optimal strategy can therefore improve the expected return, but the amount of skill is limited to this play-or-fold decision. Once the player has called, the remaining cards and final result are determined by chance.

Casino Hold’em may also include optional bonus or jackpot bets. These are evaluated separately from the main Ante and Call wagers and generally do not involve a strategic decision after they have been placed.

Three Card Poker

In Three Card Poker, the player and dealer each receive three cards. After seeing their own hand, the player must either fold and lose the Ante or place an additional Play bet to compete against the dealer.

Under common Ante and Play rules, the dealer normally needs queen-high or better to qualify. A widely used basic strategy is to continue with Queen-6-4 or better and fold weaker hands.

The threshold is more precise than simply playing every hand containing a queen. For example, Queen-7-2 is strong enough to continue, while Queen-5-4 falls below the usual strategy threshold. When the highest cards are equal, the lower cards can determine the correct decision.

Following the correct play-or-fold strategy reduces expected losses, but it does not influence which cards are dealt or guarantee that the player will beat the dealer.

Optional wagers such as Pair Plus and Six Card Bonus are separate from the main Ante and Play game. Their results depend on the cards dealt, and the Queen-6-4 strategy does not improve the return of these side bets.

Video Poker

Video poker contains one of the clearest skill elements among machine-based casino games. The initial five cards are randomly dealt, but the player decides which cards to hold and which to discard before replacement cards are drawn.

These decisions can substantially affect expected return. Holding a made hand may appear sensible, but discarding part of it can sometimes be mathematically stronger when there is a valuable draw available. In other situations, keeping a low pair may offer a better expected result than attempting to complete a straight or flush.

The correct choice depends on three factors:

• The five cards initially dealt
• The probability of completing each possible hand
• The exact payouts shown in the game’s paytable

Strategy therefore differs between variants such as Jacks or Better, Deuces Wild, and Bonus Poker. Two games carrying the same variant name can also have different expected returns when their paytables award different amounts for hands such as a full house or flush.

A published maximum RTP generally assumes mathematically optimal decisions for the exact paytable being played. Using a strategy designed for another variant or paytable can reduce the effective return.

Some video poker paytables also award a disproportionately larger royal-flush payout when the maximum number of credits is wagered. Players should check the payout column before assuming that increasing the stake is required, as this rule is not identical across every game.

Even perfect strategy does not make a negative-expectation video poker game profitable. It helps the player achieve the best theoretical return available from that version, while the cards drawn and short-term results remain random.

Our complete video poker guide explains the game structure, common variants, paytables, and strategic decisions in more detail.

Games Where Strategy Cannot Influence the Random Outcome

Many casino games do not give players a decision that changes the result after a wager has been placed. The winning number, symbol combination, card draw, dice result, or multiplier is determined by chance rather than player technique.

This does not mean that every available wager has the same mathematical value. Players may still choose between games or different bet types within a game with different house edges and RTP, win frequencies, or volatility levels.

The distinction is that these choices affect the wager being made—not the random outcome that follows.

Where two wagers have the same RTP, differences in win frequency and volatility affect how the results are distributed rather than the house edge. A lower-volatility option generally produces smaller, more frequent payouts, while a higher-volatility option concentrates more of its return in less frequent outcomes.

Game	Choices Available to the Player	What the Player Cannot Influence
Roulette	Wheel variant, bet type, and stake. The variant can affect the house edge, while the bet type mainly changes win frequency and volatility.	The number on which the ball lands.
Baccarat	Banker, Player, Tie, side bets, and stake. These wagers can have substantially different house edges.	The cards dealt to each hand.
Craps	The type of wager and stake. Some bets carry a much lower house edge than others.	The outcome of the dice roll.
Slots	Game, version, stake, and any optional features offered.	The symbol combination selected by a properly functioning random number generator.
Crash Games	Stake and cashout target. The target changes the probability of winning, potential payout, and volatility. In standard fixed-RTP versions, it does not change the theoretical RTP.	The point at which the multiplier crashes.
Bingo, Scratch Cards, Money Wheels, and Virtual Sports	Game, stake, and available betting options.	The draw, reveal, wheel result, or simulated sporting outcome.

For example, selecting single-zero European roulette instead of double-zero American roulette reduces the house edge. Choosing an outside roulette bet rather than a straight-up number also produces more frequent but smaller wins. Neither decision allows the player to control where the ball lands.

Similarly, selecting a slot with a higher RTP can reduce the amount expected to be lost across extensive play. However, slots are sometimes released in several RTP configurations, allowing different casinos to offer versions of the same game with different theoretical returns.

Players should therefore check the RTP shown in the game’s help menu or paytable rather than assuming that a title always uses the percentage advertised elsewhere. Our guide to why slot RTP can vary between casinos explains how alternative versions work in more detail.

A higher RTP does not make the next spin predictable or guarantee that the player will finish a session with more money.

Strategies That Do Not Create an Advantage

A strategy represents genuine skill only when the available choices have different mathematical expected returns. Many popular casino systems instead change the size or pattern of bets without improving the underlying odds.

Using Previous Results to Predict the Next Outcome

Previous random results do not make the opposite outcome “due.” For example, a long sequence of red results in roulette does not increase the probability that the next spin will land on black at a properly functioning table.

The same applies to recent slot results, baccarat hands, crash multipliers, and virtual sporting outcomes when each round is generated independently. A visible streak may look meaningful without providing useful information about what happens next.

Our guide to roulette strategies examines common systems and explains why previous spins cannot be used to predict the next result.

Changing Stakes After Wins or Losses

Progressive betting systems change the stake according to previous results. The Martingale system, for example, increases the wager after a loss in an attempt to recover earlier losses with a later win.

Changing the stake does not change the percentage house edge of the chosen wager. It changes the amount of money exposed and the way wins and losses are distributed.

A progression may produce many small winning sequences, but a sufficiently long losing run can require rapidly increasing stakes. Available funds and casino betting limits prevent stakes from being increased indefinitely, creating the possibility of a loss much larger than the intended initial profit.

Manually Stopping Online Slot Reels

On a standard RNG-based online slot, pressing a stop button does not allow the player to select the winning symbols. The game software determines the outcome, while the spinning reels provide a visual representation of that result.

A stop control may shorten the animation and reveal the result sooner, but it does not turn reaction time into a skill that improves RTP. The same applies to choosing a particular moment to press spin or attempting to follow a timing pattern between rounds.

What Skill Can and Cannot Achieve

Skill can improve the mathematical value of some casino decisions. It can help a blackjack player follow the correct basic strategy, a video poker player select the strongest cards to hold, or a player avoid games and bets with unnecessarily high house edges.

Skill can also prevent avoidable mistakes. Understanding the rules, paytable, RTP, and available wagers allows players to recognise when two apparently similar options carry different expected costs.

What skill usually cannot do is remove the casino’s mathematical advantage, control a random result, or guarantee a profitable session. Even a correctly played hand can lose, and short-term outcomes may differ substantially from the theoretical return.

The practical value of skill in casino games is therefore not that it makes winning predictable. It allows players to make better-informed decisions and reduce expected losses where meaningful choices are available.

Related Guides

• Return to Player Explained – Learn what RTP measures and why individual sessions can differ from the theoretical percentage.
• Casino Game Volatility Explained – Understand how games distribute wins and losses across short-term play.
• Do Roulette Strategies Work? – Examine common betting systems and what they do and do not change.
• Why Card Counting Usually Does Not Work Online – Explore the practical limitations of counting cards in RNG and live blackjack.