Updated: 3 November 2026
Online casinos offer hundreds of games, but most of them belong to a few families: slots, crash games, table games such as roulette and blackjack, live dealer games and virtual sports. This page explains how each type works, what the house edge and RTP mean, and what to check before you play any of them. It does not recommend any casino or any game as a way to win.
Two ideas behind every casino game
The house edge
Every casino game is built so that, over a long time, the casino keeps a share of all the money staked. That share is the house edge. It does not mean you lose every bet. It means that across many bets and many players, the maths favours the house.
RTP (return to player)
RTP is the other side of the house edge. It is the share of all money staked that goes back to players as payouts over a very long period. For example, Spribe states an RTP of 97% for its game Aviator: over a very large number of rounds, about KSh 97 of every KSh 100 staked goes back to players as a group, and about KSh 3 stays with the house.
RTP is a long-run average. In one evening your results can be far above or far below it. Read RTP explained for more.
1. Slots
Slots are the largest group of casino games. You choose a stake, spin the reels and win if certain symbols land in winning lines or patterns. Many slots add bonus features such as free spins or bonus rounds.
Each spin is decided at random by the game’s software. A slot is never “hot” or “due” for a win. Slots also differ in volatility: some pay small amounts often, others pay rarely but more when they do.
Read more: how slots work.
2. Crash games
In a crash game, a multiplier climbs from 1.00x until it suddenly stops (“crashes”). You must cash out before the crash to get your stake multiplied. If you wait too long, you lose the stake.
The best-known crash game is Aviator by Spribe, where a plane takes off and flies away. Crash rounds last only seconds, which makes it easy to spend more than you planned.
Read more: how Aviator works and crash games explained. Apps that claim to predict crash games are scams: see why an Aviator predictor cannot work.
3. Roulette
Roulette is played on a wheel with numbered pockets, including a zero. A ball is spun and lands in one pocket. You can bet on a single number, a group of numbers, a colour (red or black), odd or even, and more.
Bets on a single number pay more but win less often. Bets on red or black win more often but pay less. The zero is what gives the house its edge: no bet covers every outcome at fair odds. No betting system, such as doubling after a loss, removes that edge.
Read more: roulette explained.
4. Blackjack
Blackjack is a card game played against the dealer. The aim is to finish with cards closer to 21 than the dealer’s, without going over 21. You decide whether to take another card (“hit”) or stop (“stand”), and some games let you double your stake or split a pair.
Unlike slots, your decisions in blackjack affect your results. Some decisions are better than others in the long run. But no way of playing removes the house edge, and the rules (for example how many decks are used and when the dealer must stop) differ from one table to another. Read the table rules before you play.
5. Live dealer games
In a live casino, a real dealer runs the game from a studio and the table is streamed to your phone. You place bets on screen while you watch the cards being dealt or the wheel being spun. Live roulette, live blackjack and live baccarat are common, as are game shows with a presenter and a big wheel.
Live games feel more social, but the maths is the same as in the software versions: the house edge stays. Live streams also use more mobile data, so check your bundle before you play.
Read more: live casino explained.
6. Virtual sports
Virtual sports are computer-generated matches and races, such as virtual football, that run every few minutes. They look like real sport, but there are no real players or teams. The result of each event is decided at random by software.
Because events start so often, virtual sports can be played very fast. Form, team news or “patterns” from earlier events do not help you, because there is no real match behind them.
How to choose what to play
There is no game that will make you money over time. If you play, choose a game for entertainment and stay in control, not because you think it gives better chances:
- Read the rules screen first. It explains how the game works, the minimum and maximum stakes and, for many games, the RTP.
- Know the speed of the game. Crash games, slots and virtual sports are very fast. Faster games mean more bets per hour and quicker losses.
- Know the volatility. A high-volatility game can take your budget quickly before any payout comes.
- Try a demo where the casino offers one, to understand the rules without staking money. A demo does not teach you how to win.
- Check the operator first. Read licensed casinos in Kenya: how to check.
- Know how you will pay. Read casino and M-Pesa.
Frequently asked questions
Which casino game gives the best chance of winning? No casino game gives you an edge. Some have a higher RTP than others, but every game keeps a house edge over time. Choose a game you understand and set limits before you play.
Does an RTP of 97% mean I get back 97% of my money? No. It is an average across all players over a very long time. In one session you can lose much more than 3%, or win, but over time the house keeps its share.
Are online casino games legal in Kenya? Gambling in Kenya is regulated by the Gambling Regulatory Authority (GRA) under the Gambling Control Act, 2025, and it is for adults 18 and over. Check each operator’s GRA licence before you play.
18+ | Play responsibly Gambling is for adults aged 18 and over. It can be addictive. Only play with money you can afford to lose, and never gamble to solve money problems.
- GRA toll-free line: 0800 723 770 (customer support and gaming enquiries, Monday to Friday, 8am to 5pm)
- Self-exclusion: ask operators to bar you for a set period through the GRA self-exclusion process
- NACADA helpline 1192: a free 24-hour counselling and referral line run by NACADA; it deals mainly with alcohol and drugs, and can refer you to treatment services
- Read our responsible gambling guide