# simtools

> Prototype implementation of tools for the Simulation System of the CTA Observatory.

**Wikidata**: [Q120910085](https://www.wikidata.org/wiki/Q120910085)  
**Source**: https://4ort.xyz/entity/simtools

## Summary
Simtools is a prototype implementation of tools for the Simulation System of the CTA Observatory, distributed as free software under the 3-clause BSD License.

## Key Facts
- Simtools is free software distributed under terms that allow users to freely run, study, change and distribute it and modified versions.
- It is licensed under the 3-clause BSD License.
- The stable versions include 0.5.0 (2023-08-18), 0.5.1 (2023-08-21), 0.6.0 (2024-01-30), 0.6.1 (2024-02-01), 0.7.0 (2024-07-11), 0.8.0 (2024-11-26), 0.8.1 (2024-11-26), 0.8.2 (2024-12-03), 0.9.0 (2025-01-22), and 0.10.0 (2025-02-17).
- The website is https://gammasim.github.io/simtools/.
- The source code is hosted on GitHub at https://github.com/gammasim/simtools.
- It's described as "SimTools: a new paradigm in high fidelity simulation."

## FAQs
### Q: What is simtools used for?
A: Simtools is a prototype implementation of tools for the Simulation System of the CTA Observatory.

### Q: What license is simtools under?
A: Simtools is licensed under the 3-clause BSD License.

### Q: Where can I find the source code?
A: The source code is available on GitHub at https://github.com/gammasim/simtools.

### Q: What are the latest versions?
A: The latest stable versions include 0.10.0 (2025-02-17).

## Why It Matters
Simtools represents a significant advancement in the field of gamma-ray astronomy simulation, particularly for the Cherenkov Telescope Array (CTA) Observatory. As a prototype implementation of tools for the CTA Observatory's simulation system, it provides a new paradigm in high fidelity simulation, enabling more accurate and comprehensive modeling of gamma-ray observations. The development of simtools addresses the need for sophisticated simulation tools that can handle the complex physics and large datasets associated with modern gamma-ray telescopes. By providing free and open-source tools, it promotes collaboration and innovation within the scientific community, allowing researchers to develop and test new simulation approaches without proprietary barriers. The project's evolution through multiple stable versions demonstrates ongoing development and refinement, indicating its importance as a foundational component for CTA Observatory operations and scientific research.

## Notable For
- Specifically designed as a prototype implementation for the CTA Observatory's simulation system
- Distributed as free software under the 3-clause BSD License
- Represents a new paradigm in high fidelity simulation
- Has an active development history with multiple stable versions
- Maintained on GitHub with a dedicated website

## Body
### Technical Details
- License: 3-clause BSD License
- Website: https://gammasim.github.io/simtools/
- Source code repository: https://github.com/gammasim/simtools
- Described as "a new paradigm in high fidelity simulation"

### Version History
- 0.5.0 (stable, 2023-08-18)
- 0.5.1 (stable, 2023-08-21)
- 0.6.0 (stable, 2024-01-30)
- 0.6.1 (stable, 2024-02-01)
- 0.7.0 (stable, 2024-07-11)
- 0.8.0 (stable, 2024-11-26)
- 0.8.1 (stable, 2024-11-26)
- 0.8.2 (stable, 2024-12-03)
- 0.9.0 (stable, 2025-01-22)
- 0.10.0 (stable, 2025-02-17)

### Distribution and Access
- Distributed as free software
- Available for download from GitHub releases
- Maintained by the gammasim organization on GitHub

## References

1. [Release 0.5.0. 2023](https://github.com/gammasim/simtools/releases/tag/v0.5.0)
2. [Release 0.5.1. 2023](https://github.com/gammasim/simtools/releases/tag/v0.5.1)
3. [Release 0.6.1. 2024](https://github.com/gammasim/simtools/releases/tag/v0.6.1)
4. [Release 0.6.0. 2024](https://github.com/gammasim/simtools/releases/tag/v0.6.0)
5. [Release 0.7.0. 2024](https://github.com/gammasim/simtools/releases/tag/v0.7.0)
6. [Release 0.8.0. 2024](https://github.com/gammasim/simtools/releases/tag/v0.8.0)
7. [Release 0.8.1. 2024](https://github.com/gammasim/simtools/releases/tag/v0.8.1)
8. [Release 0.8.2. 2024](https://github.com/gammasim/simtools/releases/tag/v0.8.2)
9. [Release 0.9.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.9.0)
10. [Release 0.10.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.10.0)
11. [Release 0.11.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.11.0)
12. [Release 0.12.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.12.0)
13. [Release 0.13.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.13.0)
14. [Release 0.14.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.14.0)
15. [Release 0.15.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.15.0)
16. [Release 0.16.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.16.0)
17. [Release 0.17.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.17.0)
18. [Release 0.18.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.18.0)
19. [Release 0.19.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.19.0)
20. [Release 0.20.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.20.0)
21. [Release 0.21.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.21.0)
22. [Release 0.22.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.22.0)
23. [Release 0.23.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.23.0)
24. [Release 0.24.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.24.0)
25. [Release 0.25.0. 2025](https://github.com/gammasim/simtools/releases/tag/v0.25.0)
26. [Release 0.26.0. 2026](https://github.com/gammasim/simtools/releases/tag/v0.26.0)
27. [Release 0.27.0. 2026](https://github.com/gammasim/simtools/releases/tag/v0.27.0)
28. [Release 0.27.1. 2026](https://github.com/gammasim/simtools/releases/tag/v0.27.1)
29. [Release 0.28.0. 2026](https://github.com/gammasim/simtools/releases/tag/v0.28.0)
30. [Release 0.29.0. 2026](https://github.com/gammasim/simtools/releases/tag/v0.29.0)
31. [Source](https://api.github.com/repos/gammasim/simtools)