Hearthstone Simulators

The HearthSim Developer Community has produced several different Hearthstone simulators in various languages, with varying amounts of gameplay implemented in each.

Fireplace

Fireplace is a Python 3 simulator and one of the original HearthSim projects. It capitalizes on the Hearthstone CardDefs XML files in order to stub most of the game’s cards and have a default implementation of all simple minions. It also features an extremely extensive test suite and was used to create the Kettle protocol, in order to play simulated games online and on the official client.

Sabberstone

Sabberstone is a simulator written in C# Net Core. It has currently more than 95% of the Standard Cards implemented (Year of the Mammoth). Sabberstone has been developed to give Hearthstone addicts and AI Devs, a possibility to implement fast AIs, an example game tree search is already implemented. Cloning in any game state is possible. Sabberstone uses a simple declarative task system to implement card mechanics. Sabberstone ships a builtin Kettle server, which lets it communicate with the real Hearthstone client through Stove, or play games with the Joust web interface.

Hearthbreaker

Hearthbreaker is another simulator written in Python 3, with most cards implemented up until Blackrock Mountain. It also includes a ncurses interface. Along with Fireplace, it is another one of the original HearthSim projects.

It was used by the DeepMind team at Google for Hearthstone card generation.