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NFTs & Gaming

Solana Casino Coinflip Game

Solana Casino Coinflip Game is a full-stack peer-to-peer coinflip betting application on Solana, where players create or join on-chain wager rooms and outcomes are resolved using Orao VRF.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Solana Casino Coinflip Game — OpenViST project profile in NFTs & Gaming.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use the application when a head-to-head Solana coinflip room and live lobby suit the task; use the repository when setting up or studying its documented frontend, backend and contract components.

Who it is for

  • Solana developers examining a wallet-connected, on-chain multiplayer game architecture.
  • Players seeking a head-to-head coinflip flow using SOL or SPL-token stakes, where the application is available.

Documented uses

  • Create a coinflip room by choosing a side, stake amount and token.
  • Find and join an open room for a head-to-head match.
  • Follow room activity and results through a WebSocket-updated lobby.
  • Inspect a sample architecture combining an Anchor program, wallet UI, backend relayer and MongoDB.
Before you choose

Requirements & limits

The GitHub repository is public and exposes its README and source. No license is specified.

  • Players need a Solana wallet; the documented local-testing prerequisite is a wallet funded with devnet SOL.
  • The application uses Phantom through Solana wallet-adapter, and room creation and joining require transaction signing.
  • The documented outcome path uses Orao VRF and on-chain settlement; the backend tracks rooms, chat and match history in MongoDB.
  • The backend IDL file is gitignored and must be supplied for compilation.
  • The included contract folder is described as learning and testing material; the README says the live PvP game uses a deployed program and rebuilding requires matching program ID, IDL and frontend/backend constants.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Prepare the local backend and frontend

Set up the documented local development services and point the frontend at the local backend.

Before you start

  • Node.js 18 or later and Yarn or npm
  • MongoDB instance and connection credentials
  • Solana RPC endpoint
  • Funded relayer keypair and fee-receiver public key
  • The backend Anchor IDL file, coinflip.ts

Steps

  1. Create a MongoDB database and note its connection credentials.

  2. In coinflip-backend, install dependencies and create the .env file with the RPC, relayer, fee receiver and MongoDB settings; place coinflip.ts in the backend directory.

  3. In coinflip-frontend, install dependencies and set WS_HOST to ws://localhost:8881 and RPC to the chosen Solana cluster URL.

  4. Start the backend with yarn dev, then start the frontend with yarn start and open the documented local address, http://localhost:3000.

Expected outcome

The documented local frontend and WebSocket backend are configured to communicate, with the backend connected to MongoDB and a Solana RPC endpoint.

Guide limitations

  • The IDL file is gitignored and required for the backend to compile; the guide does not cover generating or deploying a contract.
  • This is a setup sequence from the README, not a verified execution test.
  • The README's example RPC uses devnet; a wallet with devnet SOL is listed as a testing prerequisite.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
17 October 2026
Original website title
justFiveDev/Solana-Casino-Coinflip-Game · Official homepage title · retained in its source language
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