Treasure Island: casino game rules, guides and history

What you will find on this site

• Card games. Rules and basic strategy for blackjack, baccarat, Oasis Poker and Five Card Poker — see the overview of card games.
• Roulette. The rules of roulette, types of bets and the difference between the European wheel (one zero, house edge 2.7%) and the American wheel (two zeros, house edge 5.26%).
• Slots and video poker. How online slots and video poker work: paylines, combinations, paytables and what RTP really means.
• Keno. The rules of keno, a lottery-style game in which the numbers are drawn at random.
• Payments. A guide to online casino payment methods: deposits, withdrawals, verification and which old services have been closed or renamed.
• Fair play. How random number generators were checked — the archive section on honesty control.

How online casino games work in 2026

Many online casinos used to offer games through Flash or a downloadable client; browsers have not supported Flash Player since 2021, and today games run on HTML5 right in the browser of a computer or smartphone. Demo versions are usually available on the developer’s website or in a licensed casino without a deposit. Every game has a built-in house edge: RTP (return to player) is a theoretical average over a very long run, not the chance of winning in one session, and no strategy can make a win certain.

Play responsibly

• Gambling for money is for adults only (18+) and only where the law allows it.
• Set a budget and a time limit in advance; never chase losses or play with borrowed money.
• Use deposit limits, time-outs and self-exclusion. If gambling stops being fun, take a break and seek help from a support organisation in your country.

Archive: how Treasure Island Casino described itself

The text below comes from the casino’s old English home page. The grammar of the machine translation has been corrected, and the promises of the time come with comments.

Games of the casino

Casino Treasury Island was presented as the perfect site for players with a huge assortment of legendary gambling games. To its users, casino Treasury Island offered card games that caused a stir among gamblers, such as Blackjack, Blackjack Single, Oasis Poker, Five Card Poker and Baccarat. Online roulette was available to our users in the most exciting and simple versions of the game — the European and the American. A wide range of different slot machines presented in our casino was meant to surprise and delight everyone. Players who often play card games and slots can discover the exciting video poker, which combines slots and poker.

“Guess the number and get a huge payoff — what could be easier?” — this is how the casino advertised keno, although in reality the numbers are drawn at random and no payoff is guaranteed. To do so, the casino suggested you try the oldest online bingo game, Keno, presented in our casino.

Limits and tables

All games presented in casino Treasury Island were gambling games with different betting limits. Clients of our casino independently chose a game table with the limits that were most suitable for them. Many gambling games in casino Treasury Island were available as multi-tables, where each user could play along with his friends and acquaintances.

Reliability and payments

Treasury Island was a robust, fashionable model of an online casino, in which every single gambler could memorably hold their leisure time. Online casino Treasury Island claimed to set the highest standards guaranteeing users a fair and safe play. Our online casino worked exclusively with modern technologies of its time, encryption and monitoring, so every customer could be assured of a stable and professional game.

We provided all of the factors that guaranteed our customers a professional game for real money in online casino Treasury Island. Our online casino worked with the best known and most acclaimed electronic methods of payment and withdrawal of winnings — see the archive of payment methods. Removing the resulting gain, the casino promised, would be as simple as a deposit. Online casino Treasury Island presented itself as a high standard in the game, service and absolute reliability.

Advantages, tournaments and slogans

The exclusive and free online casino Treasury Island listed a set of advantages, such as comfort and security, fast payouts, confidentiality, a wide selection of different gambling games, regular tournaments, promotions, bonuses and a generous loyalty program.

Treasury Island described itself as an honest online casino, free to join, offering users a fun and bright way to spend free time. Treasury Island was a Russian casino, which took into account all the nuances of providing players from the Runet with complete comfort and convenience. Our casino held regular tournaments, participating in which you could win real money, although prizes were never guaranteed. Players of casino Treasury Island could enjoy a bright and original game with generous bonuses.

The page also carried slogans: “Our virtual casino is your guide to the world of endless excitement and great victories!” and “Live rich, playing online casino Treasury Island!” Both were advertising: gambling is a paid form of entertainment, not a way to get rich.

Registration, free play and downloads

Excellent and modern casino games of Treasury Island were available to all players immediately after a brief registration. In our casino you could play for free, both for training and for pleasure — the “fun” mode was the casino’s name for demo play. If you liked some definite gamble and wanted to download the casino game, you used to be able to do this by downloading all the games from our site; this is no longer possible, and today casino games run in the browser. The old page ended with the call “Place your bets, take chances, get casino bonuses, experiment and win now!” Today we would add: play only with money you can afford to lose, and remember that the outcome of every round is random.