# OpenSAGE/OpenSAGE

OpenSAGE is a free, open source re-implementation of SAGE, the 3D real time strategy (RTS) engine used in Command & Conquer: Generals and other RTS titles from EA Pacific. Written in C#. Not affiliated with EA.

Repository: https://github.com/OpenSAGE/OpenSAGE
Canonical: https://ross.abutalabs.com/products/opensage
Homepage: https://opensage.github.io
Language: C#
License: NOASSERTION
License Family: other
Topics: game, game-engine, csharp, commandandconquer, sage, generals, bfme, opensage, ea-pacific, rts
Last push: 2026-03-30T23:01:45+00:00

## Health v2 (maintenance only)
Score: 56/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 74, release rhythm 8, longevity 100
- inputs: {"age_days": 3367, "days_push": 156, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- 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 1631, forks 154 (observed 2026-08-28T04:05:14.015287+00:00)

## What it is
OpenSAGE is a free, open-source re-implementation of the SAGE 3D real-time strategy engine used in Command & Conquer: Generals and other EA Pacific RTS titles, written in C#. It can already load and render many original game assets and maps, but full gameplay is still under development.

## Use cases
- play command and conquer generals without the original engine
- load and parse SAGE game asset files like .map and .w3d
- build a custom RTS game on an open-source engine
- study how the SAGE engine renders 3D models and maps
- reverse-engineer EA Pacific game data formats
- run Generals Zero Hour on Linux or macOS

## When to choose
- you want an open-source, cross-platform reimplementation of the SAGE engine
- you need to parse or inspect assets from C&C Generals or similar SAGE games
- you want to contribute to or learn from an engine reimplementation project

## When to avoid
- you need a fully playable RTS game today - gameplay is incomplete
- you need network multiplayer or AI opponents - not yet implemented
- you want a general-purpose game engine for new projects - it targets SAGE games specifically

## Facets
- artifact type: framework
- maturity: active
- function: game-engine, graphics, parser, simulation
- domain: gaming-tools, graphics
- platform: windows, cpp, cross-platform
- tags: rts, sage-engine, command-and-conquer, csharp, engine-reimplementation, veldrid, reverse-engineering, game-development, macos, linux

## Member repositories
- OpenSAGE/OpenSAGE (main) score 56

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:14.015287+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 2026-08-30T03:47:49.280459+00:00, confidence not recorded.
  - readme: https://github.com/OpenSAGE/OpenSAGE (fetched 2026-08-28T04:05:14.015287+00:00, sha 59d951829fa9)
  - homepage: https://opensage.github.io (fetched 2026-08-29T11:20:23.907537+00:00, sha 83ba424a2a88)
- Data as of 2026-08-30T08:39:29.467469+00:00.