# rea-doom-term: a text-only reconstruction of DOOM

> rea-doom-term rebuilds DOOM (1993) as a playable Rust terminal game with WAD parsing, fixed-point math, movement, combat, and text raycasting. Its evidence log links reconstructed subsystems to original source functions and tests; the terminal renderer uses a different visibility and texturing approach.

- Type: Case study
- Targets: Game
- Category: Community REA investigations
- Relationship: Author-reported mixed workflow
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/schererstefan/rea-doom-term>
- Primary source: <https://github.com/schererstefan/rea-doom-term/blob/8ffc9ccb9bfd1bc5a94538ceaddb74a66271c53c/README.md>
- Catalog page: <https://awesomerea.org/resources/rea-doom-term-case/>
- Record JSON: <https://awesomerea.org/resources/rea-doom-term-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rea-doom-term-case/index.md)

## Requirements & limits

- **Prerequisites:** A Rust toolchain supporting edition 2021 and crossterm 0.28.
- **Prerequisites:** Supply your own WAD to load an original map; a built-in map is available without one.
- **Testing evidence:** The author reports testing real-WAD loading with Freedoom Phase 1 v0.13.0; id WADs were unavailable for that test.
- **License:** MIT license.

## Primary sources

1. <https://github.com/schererstefan/rea-doom-term/blob/8ffc9ccb9bfd1bc5a94538ceaddb74a66271c53c/README.md>
2. <https://github.com/schererstefan/rea-doom-term/blob/8ffc9ccb9bfd1bc5a94538ceaddb74a66271c53c/docs/ANALYSIS.md>

## More in Games

- [reB3: reconstructing Burnout 3 from Xbox code and disc data](https://awesomerea.org/resources/reb3-case/index.md) · Case study
- [Rebellion 2: a Unity remake of Star Wars: Rebellion](https://awesomerea.org/resources/rebellion-2-case/index.md) · Case study
- [Reburn 3: reimplementation of Burnout 3 Takedown](https://awesomerea.org/resources/reburn3-case/index.md) · Case study
- [ReChan: reimplementing Jackie Chan Stuntmaster for PC](https://awesomerea.org/resources/rechan-case/index.md) · Case study
- [ReFlood: reconstructing the Amiga game Flood in C and SDL2](https://awesomerea.org/resources/reflood-case/index.md) · Case study
- [REGoth-bs: reimplementing the Gothic and Gothic II engine](https://awesomerea.org/resources/regoth-bs/index.md) · Case study

## 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.