ambient_ecs is used at run time in 28 crates (of which 3 optionally). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) ambient_ecs version
320 24 ambient_core ^0.2.1
270 15 ambient_renderer ^0.2.1
260 5 ambient_input ^0.2.1
250 5 ambient_layout ^0.2.1
220 2 ambient_text ^0.2.1
220 2 ambient_rect ^0.2.1
160 10 ambient_ui_native ^0.2.1
120 6 ambient_gizmos ^0.2.1
110 5 ambient_model ^0.2.1
1 ambient_cameras ^0.2.1
2 ambient_animation ^0.2.1
2 ambient_app ^0.2.1
4 ambient_network ^0.2.1
2 ambient_primitives ^0.2.1
2 ambient_physics ^0.2.1
1 ambient_decals ^0.2.1
1 ambient_sky ^0.2.1
ambient_debugger ^0.2.1
ambient_ecs_editor ^0.2.1
ambient_model_import ^0.2.1
ambient_water ^0.2.1
ambient_world_audio ^0.2.1
ambient_prefab ^0.2.1
ambient_project_native ^0.2.1
280 2 ambient_guest_bridge optional ^0.3.1-dev