This is by far one of the most complex issues
In short: collect materials by killing zombies, at distribution centers and exchanges in infinite zombies and at events.

Get blue ore by collecting 4 hours daily, trade infinite zombie shops, events, depots and beat alliance zombies

It is recommended to develop level 1 as purple and proceed with all purple materials and not gamble with orange components until level 4 or 5 (gambling on the left means no power pump, console or circuit).

For expansions, you should only focus on purple and orange blueprints of type A and S.

0:00:00 Introduction
0:00:30 How to get materials and blue ore
0:02:25 Which equipment should be prioritized?
0:03:20 Simple explanation of extensions and how to get and assemble them
0:08:08 Trick to swap materials you have a lot of for those you need
0:08:45 Gambling explained and example (it depends on the basic equipment level!)
0:10:35 Summary

Link to detailed instructions with extensions
https://youtu.be/trCQ4MmpKKg?si_WUI0KeJ93R9vV1B

Link to buy Aoz coins directly (save money)
https://pay-service.ageoforiginsgame.com/#/

I think we both get something if you scroll down and enter my invite code: NK22SNDH

You can watch the short video I made on how to use the site

https://youtu.be/d3WY7LG1v-A?siOnO-hFAseoTu-Ctp

Please take the opportunity to connect with your friends and family and share this video with them if you find it useful.