We are a small community of developers passionate about Hearthstone. We build simulators and other tools around and for the game.

Are you interested? Come join us on the #hearthsim IRC channel on the Freenode network, or join our mirrored room on Gitter.

Our core projects:

We also host:

Our tools:

Resources we work on:

Everything happens in the #hearthsim IRC channel. Logs are available on Gitter.

Fast Hearthstone Log Parsing

A few months ago, Blizzard added a “PowerTaskList” log to the Power.log file. It’s an interesting addition: Rather than log the game state updates, it logs the animation queue - in other words, in PowerTaskList, each game state delta block is logged as it happens on screen in the Hearthstone client.

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HSReplay 1.1 Released

HSReplay 1.1 has been released. This update fixes misuses of some attributes, adds some game/player metatada and removes the playerID concept from HSReplay itself, forcing usage of entity IDs instead.

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On the state of the game

There’s been a bit of a riot on the Hearthstone subreddit lately. A critical mass of complaints about the game, that’s gotten several content producers to contribute to the discussion and reveal that they, too, are burned out.

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