Question 1

How do I set up OpenDota for self-hosting?

Accepted Answer

Clone the repository, create a .env file with Steam API keys and account details, then run docker-compose up to start all services. The README details configuring databases and using pm2 to manage individual microservices like the parser.

Question 2

OpenDota vs Stratz: which has better replay parsing?

Accepted Answer

OpenDota uses an open-source Java parser for detailed replay data and allows full self-hosting, while Stratz offers a commercial API with different features. Choose OpenDota for customization and data control, or Stratz for a more polished, hosted experience.

Question 3

How to parse a specific Dota 2 match replay with OpenDota?

Accepted Answer

Ensure the parser service is running via pm2 start ecosystem.config.js --only parser, then use the API to request a parse by match ID. The system fetches the replay from Steam, processes it with the Java parser, and stores granular data in the database.

Question 4

Can I use OpenDota without a Steam account for replay parsing?

Accepted Answer

No, accessing replay salts from Dota's Game Coordinator requires a Steam account login without Steam Guard, as noted in the README. Basic match data can be fetched with just a Steam API key, but replay parsing is limited without this account.

Question 5

What are the system requirements for running OpenDota locally?

Accepted Answer

You need Docker installed, sufficient RAM and CPU for multiple containers (databases and Node.js services), and a stable internet connection to fetch data from Steam's APIs. The multi-database setup can be resource-heavy on smaller machines.

Question 6

How to contribute code to OpenDota?

Accepted Answer

Fork the repo, make changes in the Docker environment, test with npm test, and submit a pull request. The project encourages contributions and has a Discord community for support, with optional steps like adding your SteamID to CONTRIBUTORS.ts.

Open Dota

What is Open Dota?

Overview

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Pros

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Frequently Asked Questions