# TASEmulators/BizHawk

BizHawk is a multi-system emulator written in C#.  BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.

Repository: https://github.com/TASEmulators/BizHawk
Canonical: https://ross.abutalabs.com/products/bizhawk
Homepage: http://tasvideos.org/BizHawk.html
Language: C#
License: NOASSERTION
License Family: other
Topics: c-sharp, c-plus-plus, winforms, emulator, emulation, saturn, dotnet, speedrunning
Last push: 2026-08-18T17:46:27+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 49, longevity 100
- inputs: {"age_days": 4090, "days_push": 15, "days_rel": 124, "gap_med": 239.0, "n_releases_24m": 3}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2737, forks 466 (observed 2026-08-28T04:07:16.345077+00:00)

## What it is
BizHawk (EmuHawk) is a multi-system retro game emulator written in C# with a WinForms frontend. It combines casual-play features with full rerecording, savestates, memory debugging, and Lua scripting, making it the standard tool for tool-assisted speedrunning (TAS).

## Use cases
- create tool-assisted speedruns of retro games
- record and replay input movies across 45+ console systems
- debug game memory with hex editor and search tools
- rewind and frame-step gameplay while adjusting inputs
- script automation and bots with Lua
- play classic games with joypad support and savestates
- record gameplay audio and video to file

## When to choose
- you need frame-accurate input editing and rerecording for TAS
- you want one emulator frontend covering many retro consoles
- you need memory viewing/editing and Lua scripting for glitch hunting
- accuracy matters more than raw performance

## When to avoid
- you want a lightweight emulator purely for casual play at maximum performance
- you need emulation of modern consoles like Xbox or PS3
- you require a mobile or web-based emulator

## Facets
- artifact type: application
- maturity: active
- function: gui, simulation
- domain: gaming-tools, cross-platform
- platform: windows, dotnet
- tags: emulator, tas, tool-assisted-speedrun, rerecording, save-states, lua-scripting, retro-gaming, winforms, debugging, linux, macos, desktop

## Member repositories
- TASEmulators/BizHawk (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:16.345077+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:19:14.312109+00:00, confidence not recorded.
  - readme: https://github.com/TASEmulators/BizHawk (fetched 2026-08-28T04:07:16.345077+00:00, sha 3d62d69851d6)
  - homepage: http://tasvideos.org/BizHawk.html (fetched 2026-08-29T09:57:32.481074+00:00, sha e47214dc7182)
  - site_page: https://tasvideos.org/FAQ (fetched 2026-08-29T09:57:32.484205+00:00, sha ea12adbbd832)
  - site_page: https://tasvideos.org/BizHawk/ReleaseHistory (fetched 2026-08-29T09:57:32.486221+00:00, sha 6c73fff95622)
  - site_page: https://tasvideos.org/Bizhawk/FAQ (fetched 2026-08-29T09:57:32.489269+00:00, sha 656a1f477dca)
- Data as of 2026-08-30T08:39:29.467469+00:00.