# BlueRaja/High-Speed-Priority-Queue-for-C-Sharp

A C# priority queue optimized for pathfinding applications

Repository: https://github.com/BlueRaja/High-Speed-Priority-Queue-for-C-Sharp
Canonical: https://ross.abutalabs.com/products/high-speed-priority-queue-for-c-sharp
Language: C#
License: MIT
License Family: permissive
Topics: c-sharp, priority-queue, pathfinding
Last push: 2021-07-26T02:51:30+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": 4093, "days_push": 1864, "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 1231, forks 170 (observed 2026-08-28T04:04:04.268082+00:00)

## What it is
A C# priority queue library optimized for pathfinding applications, offering both a fast unsafe implementation and a simple safe one. It is unit-tested, dependency-free, available on NuGet, and supports .NET versions as old as 2.0.

## Use cases
- implement A* pathfinding in a C# game
- need a fast priority queue for Dijkstra's algorithm
- find a stable priority queue in .NET
- replace slow .NET priority queue with faster alternative
- schedule tasks by priority in C#
- add a lightweight priority queue via NuGet

## When to choose
- you need maximum priority queue performance for pathfinding in C#
- you want a stable queue that preserves insertion order for equal priorities
- you need compatibility with old .NET versions and zero dependencies

## When to avoid
- you need thread-safe concurrent priority queues
- you are not on the .NET ecosystem
- you need a general-purpose concurrent scheduler rather than a queue data structure

## Facets
- artifact type: library
- maturity: maintenance
- function: math, developer-tools
- domain: developer-tools
- platform: dotnet, cross-platform
- tags: priority-queue, pathfinding, csharp, data-structures, nuget, algorithms, game-development

## Member repositories
- BlueRaja/High-Speed-Priority-Queue-for-C-Sharp (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:04.268082+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 2026-08-30T08:22:23.788310+00:00, confidence not recorded.
  - readme: https://github.com/BlueRaja/High-Speed-Priority-Queue-for-C-Sharp (fetched 2026-08-28T04:04:04.268082+00:00, sha d74e594f8a6b)
- Data as of 2026-08-30T08:39:29.467469+00:00.