Decision Workspace
crust-engine vs flecs_ecs vs kiwi-ecs
Side-by-side comparison of Rust crates
49
crust-engine
growingv1.2.0
A Scratch-inspired game development tool with its own text-based programming language
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
Core Metrics
| crust-engine | flecs_ecs | kiwi-ecs | |
|---|---|---|---|
| Health Score | 49 | 46 | 41 |
| Total Downloads | 3.4K | 8.8K | 19.6K |
| 30d Downloads | 12 | 473 | 15 |
| Dependents | 0 | 6 | 0 |
| Releases | 9 | 8 | 16 |
| Last Updated | 162d ago | 131d ago | 1127d ago |
| Age | 9m | 2y 5m | 3y 5m |
Health Breakdown
crust-engine
Maintenance
12
Quality
15
Community
5
Popularity
4
Documentation
13
flecs_ecs
Maintenance
12
Quality
9
Community
8
Popularity
5
Documentation
12
kiwi-ecs
Maintenance
6
Quality
15
Community
5
Popularity
5
Documentation
10
Technical Details
| crust-engine | flecs_ecs | kiwi-ecs | |
|---|---|---|---|
| Version | 1.2.0 | 0.2.2 | 1.4.1 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | GPL-3.0-or-later | MIT | MIT |
| Dependencies | 12 | 16 | 2 |
| Crate Size | 140KB | 417KB | 10KB |
| Features | 0 | 35 | 1 |
| Yanked % | 0.0% | 87.5% | 31.3% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | — | 1.88 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •crust-engine leads with a health score of 49/100, but none of the options score above 80.
- •kiwi-ecs has the most downloads (19.6K), suggesting wider adoption.
- •⚠ kiwi-ecs has not been updated in over a year.
- •flecs_ecs is pre-1.0 — API may change.