Hearthstone

Hearthstone (PC, 2014) has code that decompiles almost back to source, HearthSim/Hearthstone-Deck-Tracker, and 5 other public projects, including an open-source reimplementation. An agent environment already wraps it.

Data checked 2026-10-12 · unbaked registry

Unity

Projects

Hearthstone client (Unity Mono) + HearthSim tooling (log parsing, HDT…

Readable bytecodeUnity C# client; Power.log game-state log; HearthMirror memory reader4,920 starspushed 2026-10-10no licenserelease v1.55.6

A deck tracker and deck manager for Hearthstone on Windows

GitHub

Fireplace (Python simulator)

ReimplementationPython741 starspushed 2025-12-19AGPL-3.0 license

A Hearthstone simulator in Python

GitHub

RosettaStone (C++ simulator with RL)

ReimplementationC++17 + Python bindings682 starspushed 2026-08-19AGPL-3.0 license

Hearthstone simulator using C++ with some reinforcement learning

GitHub

SabberStone (C# .NET Core simulator)

ReimplementationC# .NET Core288 starspushed 2022-12-08AGPL-3.0 license

Just another Hearthstone Simulator in C# .Net Core, with some A.I. approaches!

GitHub

MetaStone (Java simulator)

ReimplementationJava140 starspushed 2018-08-17GPL-2.0 licenserelease 1.3.0

Hearthstone simulator written in Java with full GUI support

GitHub

Spellsource (Java multiplayer card battle engine; MetaStone successor)

ReimplementationJava99 starspushed 2026-10-05custom licenserelease 0.10.0

A multiplayer card battle engine

GitHub

What you need

Check each project for what game data it needs. Code here is linked, never game files.

Agent environments

HearthSim/SabberStone

Same toolchain

GameMethodYearStarsLast push

PCStardew ValleyDecompNative port+220162.8k2026-09-28 MOBAmong UsReimplementationNative port+220182.4k2026-10-09 PS1Final Fantasy IXMatching decompStatic recomp+220007082026-10-12 PCHollow KnightSource portReadable bytecode+120173402026-08-23 PCKerbal Space ProgramReadable bytecodeAgent environment20157482026-10-12 PCHollow Knight: SilksongStatic recompSource port+22025792026-09-25 MOBBloons TD 6Readable bytecodeAgent environment+120182632026-10-07 PCPathfinder: Wrath of the RighteousReadable bytecode20215482026-10-10

More on PC

GameMethodYearStarsLast push

PCMindustrySource releaseAgent environment201929k2026-10-11 PCosu!Source releaseReadable bytecode+1200719k2026-10-12 PCCommand & Conquer Remastered CollectionSource release202021k2025-01-16 PCRollerCoaster Tycoon 2ReimplementationAgent environment200216k2026-10-12 PCDune 2000Reimplementation199818k2026-10-11 PCAge of Empires IIReimplementation199914k2026-10-03 PCCataclysm: Dark Days AheadSource release201313k2026-10-12 PCCivilization VSource releaseReimplementation201011k2026-10-12

GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.