# Open RCT3: an early RollerCoaster Tycoon 3 reimplementation

> Open RCT3 is an early-stage reimplementation of RollerCoaster Tycoon 3. Its C# code includes an OVL file reader and writer, while the published roadmap places terrain, scenery, rides and gameplay in unfinished phases. The project may require assets from the player's original game copy.

- 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/open-rct3/open-rct3>
- Primary source: <https://github.com/open-rct3/open-rct3/blob/f39e7b6a7b5826dd15f88c6395de01d20f4fdb68/README.md>
- Catalog page: <https://awesomerea.org/resources/open-rct3-case/>
- Record JSON: <https://awesomerea.org/resources/open-rct3-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/open-rct3-case/index.md)

## Requirements & limits

- **Prerequisites:** Development requires the .NET 10 SDK, Make and Deno.
- **Prerequisites:** Use may require original RollerCoaster Tycoon 3 assets.
- **Limits:** Terrain, scenery, attractions and gameplay remain on the roadmap.
- **License:** AGPL-3.0 license.

## Primary sources

1. <https://github.com/open-rct3/open-rct3/blob/f39e7b6a7b5826dd15f88c6395de01d20f4fdb68/README.md>
2. <https://github.com/open-rct3/open-rct3/blob/f39e7b6a7b5826dd15f88c6395de01d20f4fdb68/OpenCobra/OVL/README.md>

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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.