CHANCE
Crypto coinflip is the simplest PvP gambling format: one player opens a flip with a stake and a side, a second player matches it, and one random result sends both stakes, minus a fee, to the winner. The odds are 50/50, so the fee is the whole cost of playing. Published fees run from 0.5% to 5% of the pot as of October 2026.
The creator sets the stake and picks a side. Open flips wait in a lobby until someone joins.
The joiner pays the same amount and takes the other side. On Suigar's smart contract the joiner cannot change the amount, and the creator can cancel a flip nobody has joined.
On CSGOEmpire no result exists until someone joins. The site then takes an EOS blockchain block mined after the join as the public seed.
Both stakes go to the winner after the fee comes off the pot or the winnings.
On provably fair sites the secret seed is revealed after the round, so the result can be recomputed.
Illustrative · no real money
Illustrative $100 flips against another player, using each site's published fee as of October 2026. Solpump's rate comes from an archived copy of its page.
| Fee level | Pot | Fee | Winner receives | Net win |
|---|---|---|---|---|
| 0.5% (CSGOEmpire) | $200.00 | $1.00 | $199.00 | $99.00 |
| 2% (CoinWager) | $200.00 | $4.00 | $196.00 | $96.00 |
| 5% (PVPspinArena, Solpump) | $200.00 | $10.00 | $190.00 | $90.00 |
| Average loss per flip at 0.5% / 2% / 5% | $0.50 / $2.00 / $5.00 | |||
| Win rate needed to break even | 50.25% / 51.02% / 52.63% | |||
A fair coin wins half the time, so each player pays half the fee on average. A hundred $100 flips at 5% cost about $500 in expectation; at 0.5% the same run costs about $50.
Coinflip gambling has no house edge in the coin itself, so the operator's cut is the only number that matters. The published rates as of October 2026:
| Site | Coinflip fee | How it is taken |
|---|---|---|
| CSGOEmpire | 0.5% | Cut of a won flip: a 50-coin flip pays back 99.5 coins. It was 3% before 30 May 2023. |
| CoinWager | 2% | Two 1 SOL stakes pay the winner 1.96 SOL. |
| CaseBattles.gg | 5% | Listed as the coinflip house edge. |
| PVPspinArena | 5% | Of the combined pot; cancelled rounds are refunded without it. |
| Solpump | 5% | A win pays 1.9 times the stake. |
CSGOEmpire's figures are on its coinflip update note. Suigar publishes no number for its PvP coinflip: the page says the winner is paid "after any applicable fees", and its terms say the edge varies by game and is shown before you confirm a bet.
Speed is what makes a small fee expensive. A flip settles in seconds, and the fee applies to every one, so a player who flips the same balance repeatedly pays the cut many times over in a session. Strategy cannot change this: each flip is independent, and no betting pattern alters a 50/50 result.
The basis of the fee matters as much as the rate. On a 1v1 flip, a cut of the pot and a cut of the winnings work out the same, but in multi-player pots and arena cash-outs the fee can include your own stake. Our jackpot pot guide shows that arithmetic.
A PvP coinflip is meant to pit you against another player, but the other side is not always a person:
Collusion and multi-accounting are the other PvP risk. CSGOEmpire's terms let it void bets connected to bots, scripts or collusion, which also means a win can be taken back if the site links your account to one of those.
There are two separate questions: whether the flip itself is fair, and whether the site is a business you can hold to account.
The flip. Most crypto coinflip sites use commit-reveal: they publish a hash of a secret server seed before the round and reveal the seed afterwards, so anyone can recompute the result. CSGOEmpire combines a private seed, the round ID and an EOS block mined after the challenger joins, and publishes a verification script (how CSGOEmpire coinflip is fair). CoinWager publishes its formula, HMAC-SHA256 of the server seed with the client seed and nonce. Our provably fair dice explainer walks through a full check with real values.
Smart-contract flips. Suigar holds both stakes in a contract on the Sui blockchain and draws the result with Sui's on-chain randomness. Its own docs warn that this randomness "alone does not prevent every application-level attack", and the MoveBit audit report dated November 2025 lists a coinflip file but no PvP coinflip module. Solpump says its contracts were reviewed by auditors such as CertiK; we found no audit report.
The operator. CSGOEmpire is the one coinflip site we found whose licence checks out: Curaçao Gaming Authority OGL/2024/1183/0869, shown as Active on the CGA certificate page. PVPspinArena names no company or licence, CoinWager publishes no terms, Suigar describes itself as an interface to smart contracts, and Solpump's Tuvalu number appears on a register run by the authority's appointed licensing agent. With no licence, there is no regulator to complain to if a withdrawal stalls.
What you can stake depends on the site, and so does who holds your money while you play:
A custodial balance can be frozen by the operator; a wallet-signed bet carries smart-contract risk instead. Searches for bitcoin coinflip also turn up a Bitcoin ATM brand with a similar name, which has nothing to do with the game. Skin-based flips share the age and licensing problems covered in our case battles guide, and more on crypto-only sites is in the P2P crypto casino guide.
Fast flips make it easy to chase losses. Free, confidential help is available from GamCare in the UK, Gambling Therapy internationally, Gamblers Anonymous, and the NCPG helpline on 1-800-GAMBLER in the US.
Our partners
The casinos we work with, with slots, live tables and crypto payments. They are standard casinos rather than coinflip sites, so the house is on the other side of every bet.
18+. New customers only, full terms on each casino's site. Offers, wagering and payment methods as listed by each casino on 27 October 2026. Amounts are converted from each casino's own currency at the European Central Bank rate and rounded, so the casino's figure in your currency may differ slightly. These are standard online casinos, not P2P sites: you play against the house. We earn a commission when you join through these links. Online casinos are not legal everywhere, so check the law where you live first.
Checked 27 October 2026
CSGOEmpire is the only coinflip site listed here, because its Curaçao licence shows Active on the regulator's own certificate page as of October 2026. The Solana and Sui coinflip sites we read name no licence or rely on a register we treat as weak, so they appear below instead.
Coinflip and Case Battles
These sites are described for reference only: we have no partnership with them and do not link to them. Fees and country lists come from each site's own terms on the date above; check them again before you deposit.
Legality follows the player's location, not the site's licence, so an offshore coinflip site can be unlawful where you live.
| Country | Position |
|---|---|
| United Kingdom | Serving British players without a Gambling Commission licence is a criminal offence. CSGOEmpire and Solpump list the UK as restricted. |
| United States | State law decides: seven states had lawful online casinos in 2025, and Maine enacted a law in January 2026. CSGOEmpire, Solpump and Suigar exclude the US. |
| Canada | Ontario's regulated market runs through iGaming Ontario for players 19 and over in the province. Check that a site appears in its directory. |
| Australia | The Interactive Gambling Act bans online casino games, and CSGOEmpire bars Australian players. |
| India | Online money games have been banned since 1 May 2026, with penalties of up to three years in prison for offering them. |
| EU | France, Germany, Spain and the Netherlands are on both CSGOEmpire's and Solpump's restricted lists, and Germany, the Netherlands and Sweden require national licences. |
The flip can be checked on provably fair sites, which publish a hashed seed before the round and reveal it afterwards. The operator is a separate question: as of October 2026 CSGOEmpire is the only coinflip site we found with a licence that shows Active on its regulator's register.
Yes. You stake money or skins on a random result for a chance to win more. The UK Gambling Commission treats cashable skins as money's worth, so skin flips count as gambling too.
A coinflip in which your stake is matched by another player rather than the house. The winner takes both stakes and the site keeps a fee.
No. Each flip is a separate 50/50 event, and the fee means the average result is a loss. Changing stakes after wins or losses only changes how quickly the fee adds up.
A coinflip staked in bitcoin, as on PVPspinArena, which takes BTC deposits. Most of the PvP coinflip sites we found run on Solana or Sui, or take CS2 skins.
On a provably fair site, changing a result after the seed hash is published would show up when the seed is revealed. A site can still put a bot or its own account on the other side, freeze a custodial balance or refuse a withdrawal.
