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How to read a slot's RTP and volatility sheet
Where licensed casinos publish the figures and what they mean for session planning.
Gambling Games in CZ Casinos – Overview 2026
An encyclopedia overview of every game category available at operators with a valid national license: lotteries, certified RNG slots, table classics and live-dealer studios. Rules, published RTP figures and availability are summarised without exaggeration.
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Lottery games (Sportka, Eurojackpot, scratch cards)
Number lotteries and scratch cards are the most widely played regulated games in the country. Draws are operated under a separate lottery permission; published odds and prize tiers are fixed by the game plan filed with the supervisory authority.
- Draw lotteries: fixed prize tiers, published odds per tier, draws several times a week
- Pan-European jackpot draws pooled across multiple jurisdictions
- Scratch cards: printed and digital, with the overall payout ratio stated in the game plan
Casino game manufacturers and Czech studios
Licensed lobbies may only deploy games from suppliers whose titles passed national certification. Domestic studios hold a strong position in the local market alongside international providers.
| Studio | Origin | Typical portfolio | Certification |
|---|---|---|---|
| Studio Alpha | Domestic | Classic-style slots, hold-and-win mechanics | ✓ certified |
| Studio Beta | Domestic | Modern video slots, branded local themes | ✓ certified |
| Studio Gamma | International | Live-dealer tables and game shows | ✓ certified |
| Studio Delta | International | High-volatility video slots | ✓ certified |
Slot machines and RNG mechanics
Every slot at a licensed casino runs on a certified random number generator; the outcome of a spin is independent of previous results. Operators must publish the return-to-player (RTP) figure for each title.
- RTP: the long-run share of stakes returned as winnings, typically 90–97 %
- Volatility: how unevenly that return is distributed across spins
- Certification: testing-lab verification filed with the regulator before release
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Roulette – European and American variants
The variant determines the house edge. Licensed lobbies clearly label which wheel a table uses.
| Variant | Zero pockets | House edge | Common at licensed casinos |
|---|---|---|---|
| European | 1 | 2.70 % | ✓ standard |
| French (la partage) | 1 | 1.35 % on even-money bets | Selected tables |
| American | 2 | 5.26 % | Less common |
House edge is a statistical long-run figure; no betting pattern changes it.
Blackjack and live tables
Blackjack offers one of the lowest house edges of any casino game when played by basic strategy. Licensed live tables display rules, limits and dealer-standing rules before you sit down.
- Table rules that matter: dealer stands or hits on soft 17, doubling and splitting limits
- Side bets carry a substantially higher house edge than the main hand
- Live tables show minimum and maximum stakes per seat in the lobby
Unique casino games (Plinko, Crash Games)
Certified versions only
Drop-and-multiplier and crash-style games exist in certified versions at licensed lobbies, with published RTP and a provably random round outcome. Versions on unlicensed sites carry no such guarantees — the mechanics may look identical while the mathematics are not disclosed.
Live dealer game availability table by casino
| Casino | Live roulette | Live blackjack | Live baccarat | Game shows | Details |
|---|---|---|---|---|---|
| Casino Alpha | ✓ | ✓ | ✓ | ✓ | View details |
| Casino Beta | ✓ | ✓ | — | ✓ | View details |
| Casino Gamma | ✓ | — | — | — | View details |
| Casino Delta | ✓ | ✓ | — | — | View details |
Availability re-checked monthly; studios occasionally rotate tables.
Latest game guides and articles
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Basic blackjack strategy in one table
The mathematically derived play for every starting hand, explained without jargon.
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Roulette bet types and their real odds
Inside and outside bets compared by probability and payout on a European wheel.