What online casino games are, how they work and what is worth understanding before playing on an external operator's site.
An important clarification: Bontrio is not a casino. Games are provided exclusively by external operators, on their own platforms and under their own authorisation. This page is informational material.
An online casino is a platform run by an authorised company that offers games of chance over the internet. The operator manages user accounts, payment methods, identity verification and the integration with the studios that build the games. None of that happens on this site.
Every casino game carries a mathematical house edge. That edge is part of the design and cannot be removed by strategies, betting systems or pattern-spotting. This is why gambling should be treated as entertainment with an expected cost, never as a source of income.
Slots are the most numerous games in any online casino. Each spin is resolved by a random number generator: spins are independent of one another, and one result has no influence on the next. There are no hot or cold machines.
Two figures help you read a slot: RTP (theoretical return to player, calculated over millions of spins) and volatility (how often and how large the payouts tend to be). A high RTP guarantees nothing in any single session.
The ball lands on a number and bets are settled according to the paytable. The main difference between variants is the number of zeros: European roulette has one, American roulette has zero and double zero, which increases the house edge. Betting on red or black is not a risk-free bet, because the zero exists.
The aim is to get closer to 21 than the dealer without going over. It is one of the few games where player decisions affect the expected result, although the edge still sits with the house. The specific rules — blackjack payout, whether the dealer hits soft 17, doubling and splitting options — vary by table and change that edge.
A fixed-rule game where you bet on player, banker or tie. Whether a third card is drawn is decided by the game's table, not by the participant. The tie usually pays more because it is the least likely outcome.
In house-banked poker variants, the user plays against the operator according to a fixed paytable. This differs from poker between players, where the outcome also depends on the decisions of other participants. Read the rules of each variant before playing.
Real tables streamed on video with a human dealer, where bets are placed through the operator's interface. It needs a stable connection and usually has table minimums and maximums. The pace is slower than in automated versions, which can help with spending control.
We publish no “best casino” rankings. A ranking of that kind needs objective, verifiable criteria; without them it is an opinion dressed up as data. We also publish no user reviews, ratings or testimonials.
Betsson is the external operator featured on this site. The links go straight to its platform.
The sports betting section of the external operator Betsson.
Opens Betsson's external website. All gambling activity takes place on the operator's platform.
The casino section of the external operator Betsson.
Opens Betsson's external website. All gambling activity takes place on the operator's platform.
Affiliate links. We may earn a commission on certain qualifying actions, at no extra cost to you.
No. This site hosts no games, accepts no bets and holds no balances. Games are provided exclusively by external operators.
Return to player: a theoretical percentage calculated over a very large number of rounds. It describes long-run behaviour and predicts nothing about a single session.
No. The house edge is part of the mathematical design of the game. No betting system removes it.
Not always. The catalogue can vary by jurisdiction and by the operator's agreements with each supplier.