This is the uniqueness of online casinos that, unlike the traditional ones, have the benefit of low operating costs, a limited number of employees, no luxourious buildings and thus no staff expenses for security, cleaning, maintenance, bars, restaurants, etc.

As the initial investment and the operating and maintenance costs are recovered in a short run, online casinos can afford progressive casino bonuses and jackpots casino for the most various and sundry games.

The first bonus is the “Free Game”, a fictious amount of money which the casino offers to his new registered members in order to allow them to try and test all the games available on the website. In this way, people can not only check the chances of winning or the graphics and sounds for each single game, but also practice games never played before without risking real money which they would probably uselessly loose in a real situation. Playing the free game by online casino is very important: actually you can play all the games with fake money, getting trained and prepared for the real money time. In this site you may find gambling reviews of casinos with the best high roller bonuses from UK and all over the world.

The next bonuses offered depend on the wagering accounts and are proportional to both the number and amount of each deposit. They are subject to the specific online casino (expecially for the uk online casinos) scales and can vary from 100% of the cash deposit (with a fixed maximum threshold) up to 500 or 1,000 euros.

A quite different matter are the progressive jackpots for which the value increases proportionally to the money lost on a specific game and which can only be won by the online casino gambler who plays the highest stake. For instance, on a slot machine the jackpot or online poker can grow enourmously till a lucky player displays the highest score on that machine. In this case the amount may reach millions of euros.