Decision Workspace
flecs_ecs vs kiwi-ecs vs specs
Side-by-side comparison of Rust crates
46
flecs_ecs
growingv0.2.2
Rust API for the C/CPP flecs ECS library <https://github.com/SanderMertens/flecs>
41
kiwi-ecs
growingv1.4.1
A performant, small and versatile entity component system
61
specs
growingv0.20.0
Specs is an Entity-Component-System library written in Rust.
Core Metrics
| flecs_ecs | kiwi-ecs | specs | |
|---|---|---|---|
| Health Score | 46 | 41 | 61 |
| Total Downloads | 8.8K | 19.6K | 984.6K |
| 30d Downloads | 473 | 15 | 22.5K |
| Dependents | 6 | 0 | 612 |
| Releases | 8 | 16 | 43 |
| Last Updated | 131d ago | 1127d ago | 915d ago |
| Age | 2y 5m | 3y 5m | 9y 11m |
Health Breakdown
flecs_ecs
Maintenance
12
Quality
9
Community
8
Popularity
5
Documentation
12
kiwi-ecs
Maintenance
6
Quality
15
Community
5
Popularity
5
Documentation
10
specs
Maintenance
6
Quality
15
Community
18
Popularity
7
Documentation
15
Technical Details
| flecs_ecs | kiwi-ecs | specs | |
|---|---|---|---|
| Version | 0.2.2 | 1.4.1 | 0.20.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT | MIT | MIT OR Apache-2.0 |
| Dependencies | 16 | 2 | 19 |
| Crate Size | 417KB | 10KB | 92KB |
| Features | 35 | 1 | 8 |
| Yanked % | 87.5% | 31.3% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | 1.88 | — | 1.70.0 |
| Owners | 1 | 1 | 9 |
Links
Quick Verdict
- •specs leads with a health score of 61/100, but none of the options score above 80.
- •specs is depended on by 612 crates — strongest ecosystem trust.
- •⚠ kiwi-ecs, specs have not been updated in over a year.
- •flecs_ecs, specs are pre-1.0 — API may change.