# Calibre vs Terraforming Mars

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | Calibre | Terraforming Mars |
|---|---|---|
| Score | 83/100 ✓ | 62/100 |
| Rank in category | #1 of 19 in Ebook Management | #4 of 14 in Gaming |
| GitHub stars | 26 267 ✓ | 961 |
| Stars, last 30 days | +258 ✓ | +9 |
| Stable releases, 12 months | 18 ✓ | 0 |
| Latest release | v9.17.0 · 23 Oct 2026 | — |
| Setup | Easy ✓ | Moderate |
| Official Docker image | No | Yes ✓ |
| License | GPL-3.0 | GPL-3.0 |
| Main language | Python | Typescript |

## Which one should you pick?

Calibre scores 83/100 against 62/100 for Terraforming Mars, so it is the safer default.

Calibre ships more often: 18 stable releases in the past year, against 0 for Terraforming Mars.

If you want the quickest setup, Calibre is easier to run; Terraforming Mars needs more configuration.

Calibre is growing faster right now (+258 stars in 30 days).

## Details

- [Calibre](https://selfhost.directory/project/calibre) (markdown: https://selfhost.directory/project/calibre.md)
- [Terraforming Mars](https://selfhost.directory/project/terraforming-mars) (markdown: https://selfhost.directory/project/terraforming-mars.md)

---
Source: https://selfhost.directory/compare/calibre-vs-terraforming-mars