Game hub
Coin Flip
Coin Flip is the simplest Original: pick a side, wager, and resolve. Ideal for teaching edge, EV, and why “50/50” marketing still includes a house take.
- RTP
- 99.0%
- House edge
- 1.0%
- Volatility
- Low
- Difficulty
- Beginner
Near 99% when priced like an even-money bet with small edge.
Overview
Coin Flip demonstrates that a binary entertainment bet can still be negative EV when payouts are slightly below fair odds.
Rules
Choose heads or tails (or equivalent sides), set stake, flip.
How It Works
Fair even-money odds would pay 1:1 at p=0.5. With edge e, either p is reduced or payout is reduced so EV ≈ −e.
Payouts
Typically near 1.98× total return (including stake) at ~1% edge — confirm live pricing.
Examples
$10 at 1.98× return: win +$9.80 or lose $10. EV ≈ −$0.10 per flip if p=0.5.
Strategies
No pattern system helps. Use flat bets if the goal is education or low-complexity play.
RTP
RTP ≈ paid expected return under the true probability model.
House Edge
Small per-flip edge compounds with volume. Fast games can accumulate wagered amount quickly.
Variance
Among Originals, Coin Flip is relatively low variance per bet, but rapid round speed can still create large session swings.
Frequently asked questions
Parent pages
Sibling games
- CrashCash out before the multiplier busts.
- PlinkoDrop a ball through pegs into multiplier buckets.
- MinesReveal safe tiles; cash out before hitting a mine.
- DiceSet a win chance; roll over or under the line.
- BlackjackHit, stand, and manage decisions against the dealer.
- RouletteWheel bets with transparent probabilities.
- KenoPick numbers; match the draw.
- LimboChoose a target multiplier; win if the result clears it.
Related guides
- House Edge ExplainedHow house edge relates to RTP, why it compounds with wager volume, and how to estimate expected loss.
- Expected ValueEV as the probability-weighted average outcome — the bridge between RTP tables and real wagering decisions.
- Understanding RTPReturn to Player explained without marketing fluff: long-run average, sample variance, and how to read published percentages.
- Lowest Volatility GamesWhich Originals tend to swing less — and how to configure Plinko, Dice, and Mines for gentler distributions.
- What Are Duel Originals?A clear definition of Duel Originals: in-house, fast-round games with transparent parameters, published RTP targets, and provably fair verification.