# ValveSoftware/halflife

Half-Life 1 engine based games

Repository: https://github.com/ValveSoftware/halflife
Canonical: https://ross.abutalabs.com/products/halflife
Language: C++
License: NOASSERTION
License Family: other
Last push: 2024-10-02T21:42:17+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4948, "days_push": 700, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4350, forks 705 (observed 2026-08-28T04:08:46.292969+00:00)

## What it is
Valve's official Half-Life 1 SDK containing engine-based game source code and development tools for the GoldSrc engine. It also serves as the official issue tracker for Half-Life 1 products.

## Use cases
- create a Half-Life 1 mod
- build a custom GoldSrc engine game
- fix bugs in Half-Life 1 game code
- study classic FPS engine source code
- report bugs for Half-Life 1 games
- port or maintain Half-Life 1 based games

## When to choose
- you want to develop and freely distribute a modified Valve game on the Half-Life engine
- you need the official source for Half-Life 1 engine-based games
- you want to learn from a classic commercial game codebase

## When to avoid
- you need a modern engine with 3D rendering and physics features
- you want a permissively licensed engine for commercial use without contacting Valve
- you are building games for Source 2 or newer Valve technology

## Facets
- artifact type: library
- maturity: maintenance
- function: game-engine, sdk, graphics, simulation
- domain: gaming-tools, cross-platform
- platform: windows, cpp
- tags: half-life, source-sdk, goldsrc, valve, game-modding, game-sdk, game-development, linux

## Member repositories
- ValveSoftware/halflife (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:46.292969+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 2026-08-29T18:21:32.412386+00:00, confidence not recorded.
  - readme: https://github.com/ValveSoftware/halflife (fetched 2026-08-28T04:08:46.292969+00:00, sha 8656b386b95a)
- Data as of 2026-08-30T08:39:29.467469+00:00.