# Helion: rebuilding a Doom-compatible engine

> Helion rebuilds a Doom-compatible engine with static rendering and state management for dynamic map changes. It reads user-supplied IWAD game data and supports WADs targeting vanilla Doom, Boom, MBF, MBF21, ID24 and part of UDMF.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/Helion-Engine/Helion>
- Primary source: <https://github.com/Helion-Engine/Helion/blob/8088d62815b7da6f391ee06b7246edcac79eda97/README.adoc>
- Catalog page: <https://awesomerea.org/resources/helion-doom-engine-case/>
- Record JSON: <https://awesomerea.org/resources/helion-doom-engine-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/helion-doom-engine-case/index.md)

## Requirements & limits

- **Prerequisites:** A user-supplied IWAD game data file and an OpenGL 3.3-compatible GPU.
- **Prerequisites:** Windows 7 x64, Linux x64 or an M-series macOS ARM64 device.
- **Limits:** UDMF support is partial.
- **License:** GPL-3.0 license.

## Primary sources

1. <https://github.com/Helion-Engine/Helion/blob/8088d62815b7da6f391ee06b7246edcac79eda97/README.adoc>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.