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6/2/2026 · 6 min read

What Is a Solana Coinflip? A Complete Beginner's Guide

How Solana coinflip games work, why settlement is instant, what fees to expect, and how to tell a provably fair coinflip from a black box.

A Solana coinflip is the simplest form of on-chain wagering: two players stake the same amount of SOL, one side of the coin is assigned to each, and the winner takes the pot minus a small platform fee. On SquidX the two sides are Squid and Whale, and every flip settles in seconds because Solana finalises blocks faster than almost any other chain.

Why Solana instead of another chain

Coinflips are high-frequency, low-value bets. That only works when fees are fractions of a cent and confirmation is sub-second. Solana's throughput makes a 0.1 SOL flip economically sensible, whereas the same wager on a congested chain would lose value to gas.

What a fair coinflip actually requires

A fair flip needs three things: a server seed committed before you bet, a client seed you control, and a published hash so the result can be recomputed afterwards. SquidX shows the seed hash on the flip card itself — including in demo flips — so the outcome can be verified rather than trusted.

Fees

SquidX charges 0.5% of each wager. Insta Wallet deposits carry a 2% fee. There are no hidden spreads, no rake on winnings, and no withdrawal minimum beyond network cost.

Try a flip with no wager

Demo flips use the same 50/50 engine and show the same seed hash.

Open the coinflip