# opentomb/OpenTomb

An open-source Tomb Raider 1-5 engine remake

Repository: https://github.com/opentomb/OpenTomb
Canonical: https://ross.abutalabs.com/products/opentomb
Homepage: http://opentomb.github.io/
Language: C++
License: LGPL-3.0
License Family: copyleft
Topics: discontinued, not-maintained, inactive
Archived: true
Last push: 2025-02-24T22:46:16+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 8, release rhythm 8, longevity 100
- inputs: {"age_days": 4165, "days_push": 555, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1445, forks 159 (observed 2026-08-28T04:04:45.146526+00:00)

## What it is
OpenTomb is an open-source, from-scratch reimplementation of the classic Tomb Raider 1-5 game engines, capable of playing original and custom TRLE levels on modern hardware. The project is no longer maintained; TombEngine is recommended as its actively developed successor.

## Use cases
- play classic Tomb Raider 1-5 levels on modern operating systems
- run Tomb Raider natively on Linux or macOS without DOSBox
- play custom TRLE fan-made levels
- experience classic TR levels with modern graphical enhancements and variable frame rate
- study a from-scratch reimplementation of a classic game engine

## When to choose
- you want to play classic Tomb Raider levels on a non-Windows platform
- you need an open-source engine not limited by the original binary
- you want to explore or fork the source code of a classic engine remake

## When to avoid
- you need an actively maintained engine - use TombEngine instead
- you want to create new custom levels with modern tooling
- you expect bug fixes or new features from the upstream project

## Facets
- artifact type: application
- maturity: abandoned
- function: game-engine, graphics, simulation
- domain: gaming-tools, cross-platform
- platform: windows, cross-platform, cpp
- tags: tomb-raider, engine-remake, open-source-engine, retro-gaming, bullet-physics, inactive-project, game-development, linux, macos

## Member repositories
- opentomb/OpenTomb (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:45.146526+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 2026-08-30T04:36:14.518518+00:00, confidence not recorded.
  - readme: https://github.com/opentomb/OpenTomb (fetched 2026-08-28T04:04:45.146526+00:00, sha df4363d4d00f)
  - homepage: http://opentomb.github.io/ (fetched 2026-08-29T11:46:07.387596+00:00, sha 7f7b18a47587)
- Data as of 2026-08-30T08:39:29.467469+00:00.