Decision Workspace
hecs-hierarchy vs bevy_fsm vs specs
Side-by-side comparison of Rust crates
42
hecs-hierarchy
growingv0.12.1
Hierachy implementation for Hecs ECS
62
bevy_fsm
experimentalv0.4.0
Observer-driven finite state machine framework for Bevy ECS with variant-specific events and flexible validation
61
specs
growingv0.20.0
Specs is an Entity-Component-System library written in Rust.
Core Metrics
| hecs-hierarchy | bevy_fsm | specs | |
|---|---|---|---|
| Health Score | 42 | 62 | 61 |
| Total Downloads | 47.5K | 2.1K | 1.1M |
| 30d Downloads | 0 | 0 | 22.8K |
| Dependents | 7 | 0 | 615 |
| Releases | 32 | 4 | 43 |
| Last Updated | 681d ago | 3d ago | 1023d ago |
| Age | 5y | 8m | 10y 3m |
Health Breakdown
hecs-hierarchy
Maintenance
7
Quality
14
Community
5
Popularity
6
Documentation
10
bevy_fsm
Maintenance
21
Quality
14
Community
10
Popularity
4
Documentation
13
specs
Maintenance
6
Quality
15
Community
18
Popularity
7
Documentation
15
Technical Details
| hecs-hierarchy | bevy_fsm | specs | |
|---|---|---|---|
| Version | 0.12.1 | 0.4.0 | 0.20.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | non-standard | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 4 | 3 | 19 |
| Crate Size | 15KB | 36KB | 92KB |
| Features | 0 | 0 | 8 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2021 |
| MSRV | — | — | 1.70.0 |
| Owners | 1 | 2 (team) | 9 |
Links
Quick Verdict
- •bevy_fsm leads with a health score of 62/100, but none of the options score above 80.
- •specs has the most downloads (1.1M), suggesting wider adoption.
- •specs is depended on by 615 crates — strongest ecosystem trust.
- •⚠ hecs-hierarchy, specs have not been updated in over a year.