# SebLague/Digital-Logic-Sim

Repository: https://github.com/SebLague/Digital-Logic-Sim
Canonical: https://ross.abutalabs.com/products/digital-logic-sim
Homepage: https://sebastian.itch.io/digital-logic-sim
Language: C#
License: MIT
License Family: permissive
Last push: 2025-05-19T15:18:39+00:00

## Health v2 (maintenance only)
Score: 42/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 22, release rhythm 35, longevity 100
- inputs: {"age_days": 2109, "days_push": 471, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4680, forks 575 (observed 2026-08-28T04:08:56.861033+00:00)

## What it is
A minimalistic digital logic simulator where users start with a single NAND gate and build increasingly complex custom chips, up to full CPUs. Created by Sebastian Lague as a companion to his 'Exploring How Computers Work' video series.

## Use cases
- simulate digital logic circuits
- learn how computers work from NAND gates
- build custom chips and CPUs visually
- teach digital logic design to students
- experiment with combinational and sequential circuits
- build an adder or memory from logic gates

## When to choose
- you want a simple, visual tool for learning digital logic from first principles
- you want to build chips layer by layer starting from a NAND gate
- you want a free cross-platform educational simulator

## When to avoid
- you need professional-grade circuit design with real-world timing, voltage, or SPICE analysis
- you need PCB design or hardware description language (Verilog/VHDL) support
- you need extensive built-in chip libraries or mod support, which are not yet available

## Facets
- artifact type: application
- maturity: active
- function: simulation, gui
- domain: education, simulation, hardware
- platform: windows, cross-platform
- tags: digital-logic, logic-gates, circuit-simulator, nand-gate, computer-architecture, unity, educational-game, education, macos, linux

## Member repositories
- SebLague/Digital-Logic-Sim (main) score 42

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:56.861033+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 2026-08-29T18:19:19.871139+00:00, confidence not recorded.
  - readme: https://github.com/SebLague/Digital-Logic-Sim (fetched 2026-08-28T04:08:56.861033+00:00, sha e20dd0f11409)
  - homepage: https://sebastian.itch.io/digital-logic-sim (fetched 2026-08-29T09:03:29.626800+00:00, sha 315b923cf2b1)
  - site_page: https://itch.io/t/4866644/frequently-asked-questions (fetched 2026-08-29T09:03:29.629462+00:00, sha 98b7b9d67fc1)
- Data as of 2026-08-30T08:39:29.467469+00:00.