CAT368: Understanding casino house edge

CAT368 is a premier Vietnam bookmaker and online casino that offers various betting options such as online casino games and sports betting markets. At the site, different payment options cater to every player’s betting needs. On top of that, CAT368’s offered promotions and bonuses can make your online betting experience worthwhile. 

When you bet at CAT368, you don’t have to worry about your money as the site is licensed and a renowned betting platform that provides players with a great percentage return whenever they engage with CAT368’s betting services.

What is house edge in a casino?

Wondering what is house edge in casino and how it affects your winnings? A casino house edge is the house advantage of online casinos over players in a specific game. No matter how many players win a game, in the long term, the casino will earn a percentage thanks to the built-in mathematics of each game. That’s because all casino games are structured to offer the house a built-in edge, lowering the odds and amounts of potential wins. 

It’s evident that casino sites have always had an advantage thanks to the casino games house edge. However, players can also benefit from knowing what a game’s house edge is. The house edge in games tells you how much a certain game pays out on average over its lifespan. 

Online casino house edge also tells which games offer the best returns. Naturally, the long-term payouts of games with a higher house edge will be smaller than those of games with a lower house edge. 

Factors that affect the casino house edge

Not every casino house edge is the same for every online casino. The house edge odds are greatly affected by these factors:

  • Software → It is commonly known that the house edge placed by casino software providers varies. These variations will be minor, yet a 0.05% difference can build up to huge amounts of money over a long period.
  • Bet → When playing a casino game, the casino house odds can vary. It depends on the game and the type of bet placed. For example, baccarat has a house edge of 1.24% if you bet on the player, 1.06% if you bet on the banker, and 14.36% if you bet on a tie.
  • Variant → Many casino games can be played in different ways. For example, the game of roulette has American and European variants. The two have a huge difference between their house edge bets. Depending on the variant of the game, the casino house edge chart differs for each. 

How do casinos profit from house edge?

Each casino game you will find comes with a different percentage of the casino house edge. Also, every online casino game you will find at a renowned casino site provides casino game odds. These odds show you the chances of winning. Since the majority of casino games are luck-based games, you don’t always win. 

Whenever a player bets at an online casino, the casino gets its revenue from the games commission that is affected by the house edge betting odds. Think about it, if all players win every time they bet on a game, the online casino will lose profit. 

‘The house always wins’

The popular saying ‘the house always wins’ is not entirely true. This only means that it is evident that the casino house edge has a significant advantage over the players. However, this does not imply that players have no chance of winning at casino games. Many players have won many times due to their luck and skill. 

In most games, the casino has a small potential edge. One of the best ways to boost your odds is to play the games with the highest return-to-player rates and the lowest house edge. 

Online casino games house edge

Every game you will find in an online casino such as table games, card games, slot machines and lottery has a different payout rate. As mentioned, the house edge casino games vary depending on what type of game you are playing. To ensure the fairness of each game, a provably fair system is used.

These factors affect your winning probability and your payout rate. The percentage (%) of your winning chances can be maximized by knowing which games have the best casino house edge and using that to your advantage.

Find out some of the game’s average house edge on the table below:

Casino GameHouse Edge
House Edge Poker0.46%
House Edge Blackjack0.5%
House Edge Baccarat 1.01% – 15.75%
House Edge Slots2 – 15%
House Edge Roulette2.7%
House Edge Lotto33% – 50%
House Edge Keno20% – 40%
House Edge Craps1.41%


The type of bet you make greatly affects the house edge in baccarat. Player bets give the house an edge of 1.24%, banker bets give the house a 1.06% edge, and tie bets offer the house an edge of 14.36%. 


When it comes to winning potential, blackjack is one of the best casino games you can play. However, attaining the best outcomes in blackjack is only achievable if you play smartly.

The house advantage in blackjack can go down to just 0.5% but can also be far over 2% if you don’t know how to play your cards. Blackjack is one of the best games of luck wherein the way you play can affect your house odds blackjack and the casino house edge. 


Craps is, without a question, one of the most exciting casino games. In this game, your odds of winning a bet depend heavily on the kind of wager you place. There are various forms of craps bets. Each bet you place can affect the house edge and your chances of winning.


Keno is one of those casino games that have a significant house edge, as do most lotto games. If that’s the case, then why do people continue to play? Many still love to play Keno despite its high house edge because of its engaging gameplay and the chance to win fortunes.


Poker is another table game that tests the luck of its players. This game comes with different variations with different house edges for each. Your winning odds and the house edge in casino games varies depending on what type of poker variant you are playing. 

Some of the popular poker variation and their house edges are:

  • Caribbean Stud has a house edge of 5.22%
  • Red Dog has an average house edge of 2.8%
  • Let It Ride has a house edge of 3.51% 
  • Heads Up Hold’em gives the casino an edge of 2.36%
  • Three Card Poker has an edge of 7.28% on PairPlus bets, while it gives the house an edge of 3.37% if you make ante and play bets
  • Pai Gow has a house edge of 1.46%


Roulette has two popular variations, the American and European roulette. Similar to other casino games, the roulette house edge differs depending on the type of roulette game you are playing. The American roulette has a house edge of 5.26% while the European roulette has a house edge of 2.7%. If you want to boost your odds, you can always use roulette strategies to boost your gameplay. 

Video slots

Video slots are one of the go-to casino games players enjoy. Even the best video slot games often feature an online slots house edge between 3% and 10%. Online slots with a 20% house edge are not uncommon in online casinos, with only 80% of wagers returned to winners. The advantage of playing slots is that they let you play smaller stakes and bet small per spin. 

How to determine online casino house edge 

The house edge is determined by a specific calculation depending on what type of game you’re playing and the type of bet you place. This calculator produces an estimate of house edge and your payout ratio.

When betting on a game, it is important to know what the payout ratio is and how much you can expect to gain in comparison to your initial wager. With this, you can figure out your winning chances against the house edge.

Tips to reduce the casino house edge

Although there’s no way to escape from the casino house edge, there are some ways you can boost your odds of winning. For you to maximise your gameplay, it’s crucial to always choose a game with the lowest house edge. Some of the tips to effectively reduce the casino house edge are: 

  1. Play slot games with low house edge and high RTP 

If you want to win big with online slots, it’s crucial to play slot games with lower house edge and high RTP rates. The higher the RTP, the more chances of winning big. Although this will not help you avoid the house edge entirely because all casino games have one, it will, however, boost your chances of winning. 

Some of the popular slot games with high RTP are: 

  • Mega Joker by NetEnt (99%)
  • Blood Scukers by NetEnt (98%)
  • The Catfather by Pragmatic Play (98.10%)
  1. Take advantage of live dealer games

Many online casinos now offer live dealer games. In live dealer games, bettors play with a live dealer in real-time. Some of the popular live dealer games are blackjack, baccarat, and poker. In live dealer games, the house edge is greatly affected by your gameplay and your strategies.

If you are good at playing, you have a high chance of winning and the house edge is reduced. In some live dealer games, the type of bet you place also influences the game’s house edge.

  1. Claim your casino bonuses and use promotions as much as you can

Many renowned casino sites offer casino bonuses and promotions that help players maximise their odds of winning. These casino perks come in various types to cater every player’s betting needs. Some of the most common casino bonuses you can claim are welcome bonuses, deposit bonuses, and loyalty bonuses. These bonuses and promotions come with terms and conditions so be sure to check it out first. 

  1. Set a budget and know when to quit

The casino house edge is inevitable. All games you will find in an online casino have their own house edge. That is why when you bet online, it’s important to set a budget and not go over it. The more you play a game, the higher the chances of both winning and losing.

If you don’t want to lose the money you can’t afford to lose, it’s better to have a budget in place and know when to quit.


The casino house edge is always a part of playing either at an online or land-based casino. The house edge is one of the ways a casino can profit. Every game you play has its specific house edge. Just because the casino house edge is certain, it does not mean that you can’t beat it.  

Casino House Edge FAQs

Get to know more about casino house edge and how it affects your gameplay with these frequently asked questions:

What is the best casino house advantage?

The best casino house advantage are the games with the lowest casino house edge such as blackjack, baccarat and video poker. The lower the house edge, means the better chances of winning big. 

What casino game has the lowest house edge?

The casino game with the lowest house edge is blackjack. 

Is there a casino game with no house edge?

No, all casino games have a casino house edge. Their house edge just varies depending on what type of game you are playing.