# gemrb/gemrb

GemRB is a portable open-source implementation of Bioware’s Infinity Engine.

Repository: https://github.com/gemrb/gemrb
Canonical: https://ross.abutalabs.com/products/gemrb
Homepage: https://gemrb.org
Language: C++
License: GPL-2.0
License Family: copyleft
Topics: c-plus-plus, python, isometric, game-engine, engine, game
Last push: 2026-08-25T17:00:33+00:00

## Health v2 (maintenance only)
Score: 80/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 44, longevity 100
- inputs: {"age_days": 5330, "days_push": 8, "days_rel": 163, "gap_med": 436, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1234, forks 218 (observed 2026-08-28T04:04:04.698348+00:00)

## What it is
GemRB is a portable open-source reimplementation of Bioware's Infinity Engine, the engine behind Baldur's Gate, Icewind Dale, and Planescape: Torment. It runs the original games (using their data files) on many platforms with bug fixes, widescreen support, touch input, and improved extensibility for mods.

## Use cases
- play baldur's gate on linux
- run planescape torment on android
- play icewind dale widescreen on mac
- open source infinity engine reimplementation
- run classic bioware rpgs without the original exe
- develop mods for infinity engine games
- play baldur's gate 2 on a handheld device

## When to choose
- you own original Infinity Engine game data and want to play it on modern or non-Windows platforms
- you want widescreen, higher resolutions, touch input, or bug fixes beyond the original engine
- you want a more extensible, moddable platform for Infinity Engine mods
- you want to study or build upon a reimplementation of a classic RPG engine

## When to avoid
- you don't own any original Infinity Engine game data (only a small demo is bundled)
- you want to play the Enhanced Editions — support is experimental and mostly unsupported
- you need multiplayer, which is not supported
- you want a general-purpose engine for creating brand-new games from scratch

## Facets
- artifact type: framework
- maturity: active
- function: game-engine, gui, plugin-system, interpreter
- domain: gaming-tools, cross-platform
- platform: windows, cpp, python, cross-platform
- tags: infinity-engine, baldurs-gate, icewind-dale, planescape-torment, engine-reimplementation, isometric-rpg, modding, retro-gaming, game-development, linux, macos, android, ios

## Member repositories
- gemrb/gemrb (main) score 80

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:04.698348+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 2026-08-30T08:22:10.675383+00:00, confidence not recorded.
  - readme: https://github.com/gemrb/gemrb (fetched 2026-08-28T04:04:04.698348+00:00, sha 80a2a0832599)
  - homepage: https://gemrb.org (fetched 2026-08-29T12:21:38.766478+00:00, sha 704616296a40)
  - site_page: https://gemrb.org/Dev-docs.html (fetched 2026-08-29T12:21:38.780661+00:00, sha c7b150526bf7)
  - site_page: https://gemrb.org/Features.html (fetched 2026-08-29T12:21:38.775386+00:00, sha 984c8ebd9d12)
  - site_page: https://gemrb.org/Documentation.html (fetched 2026-08-29T12:21:38.777484+00:00, sha 7cbf4936d7a2)
  - site_page: https://gemrb.org/Install.html (fetched 2026-08-29T12:21:38.779000+00:00, sha c3f14ef82127)
- Data as of 2026-08-30T08:39:29.467469+00:00.