Reducing build size for a UI game

Hi guys,

I am developing a game where I use only UI, and you know that the build size for a Unity empty project is huge even with an empty scene. At first, the size of the game was about 40 Mb. I managed to reduce the size to 25 Mb by targeting only ARMv7 processors. I also disabled the packages I am not using in the package manager.

I think that even 25 Mb is too big for such a small app, if you have guys any ideas on how to reduce the size even further please let me know.

The editor log shows this after building

Code (CSharp):

1. Build Report
2. Uncompressed usage by category (Percentages based on user generated assets only):
3. Textures               29.2 mb     63.7%
4. Meshes                 0.0 kb     0.0%
5. Animations             0.0 kb     0.0%
6. Sounds                 4.4 mb     9.6%
7. Shaders                8.1 kb     0.0%
8. Other Assets           3.8 mb     8.3%
9. Levels                 434.0 kb     0.9%
10. Scripts                1.6 mb     3.5%
11. Included DLLs          6.3 mb     13.7%
12. File headers           93.9 kb     0.2%
13. Total User Assets      45.8 mb     100.0%
14. Complete build size    153.1 mb

 

Here are a few aticles/videos that contain information on how to reduce build size.

Settings to bring an unity default scene with Camera down to 6.25 MB
https://forum.unity.com/threads/how-to-reduce-the-android-app-build-size.438119/#post-3995581

Reducing the file size of your build
https://docs.unity3d.com/Manual/ReducingFilesize.html

Reduce the APK size
https://developer.android.com/topic/performance/reduce-apk-size

Spoiler: Unite Berlin 2018 - Optimizing Binary Deployment Size

Spoiler: Reduce your Unity Build Size with some quick shrinking Tips

 

Thank you so much peter77, the suggestions are very helpful.

 

@bob_boudj96 Especially check out project tiny
https://blogs.unity3d.com/2018/12/05/project-tiny-preview-package-is-here/