# TeamHypersomnia/Hypersomnia

Multiplayer top-down shooter made from scratch in C++. Web version: https://play.hypersomnia.io Made in 🇵🇱

Repository: https://github.com/TeamHypersomnia/Hypersomnia
Canonical: https://ross.abutalabs.com/products/hypersomnia
Homepage: https://hypersomnia.io/
Language: C++
License: AGPL-3.0
License Family: copyleft
Topics: game, free-software, top-down-shooter, shooter-game, 2d-game, cpp, multiplayer, multiplayer-game, indie-game, shooter, game-development, gamedev, top-down-game, pixel-art, pixelart, pixelart-game, 2d-shooter, topdown-shooter, editor, browser-game
Last push: 2026-08-22T00:12:24+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 35, longevity 100
- inputs: {"age_days": 4801, "days_push": 12, "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 1622, forks 102 (observed 2026-08-28T04:05:12.609809+00:00)

## What it is
Hypersomnia is a free, open-source multiplayer top-down shooter written from scratch in modern C++ without a game engine. It is playable in the browser or as native builds for Windows, Linux, and macOS, and includes an in-game map editor.

## Use cases
- play a free multiplayer top-down shooter with friends
- host clan wars or duels in a fast-paced 2d shooter
- create custom maps with an in-game editor
- play a shooter directly in the browser without installing
- study a from-scratch C++ multiplayer game implementation
- run a self-hosted community shooter on linux

## When to choose
- you want a free, open-source multiplayer shooter under 50 MB
- you need cross-platform play including browser-based access
- you want to build or edit custom maps for a shooter
- you are looking for a real-world C++ codebase without engine dependencies

## When to avoid
- you need 3d graphics or a modern AAA-style engine
- you want a large player base on par with mainstream shooters
- you prefer games built with Unity, Unreal, or Godot tooling
- you need single-player-only offline gameplay

## Facets
- artifact type: application
- maturity: active
- function: game-engine, gui, editor, networking
- domain: gaming-tools, cross-platform
- platform: windows, browser, cpp
- tags: top-down-shooter, multiplayer, 2d-game, pixel-art, open-source-game, browser-game, in-game-map-editor, game-development, linux, macos

## Member repositories
- TeamHypersomnia/Hypersomnia (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:12.609809+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 2026-08-30T03:48:58.483645+00:00, confidence not recorded.
  - readme: https://github.com/TeamHypersomnia/Hypersomnia (fetched 2026-08-28T04:05:12.609809+00:00, sha 7f06543b06cd)
  - homepage: https://hypersomnia.io/ (fetched 2026-08-29T11:21:39.763675+00:00, sha 427ab139f314)
- Data as of 2026-08-30T08:39:29.467469+00:00.