Hi, new arrival needing some guidance

[Avengium]

You can start with introductions pages.
OA intro: https://www.orionsarm.com/xcms.php?r=oa-intro Welcome to Orion's Arm
OA canon: https://www.orionsarm.com/xcms.php?r=oa-...=gen_canon
Illustrated primer: https://www.orionsarm.com/xcms.php?r=oa-backstory

The primer has 10 pages. You can read them in order.
Once in page 10, there is a summary of topics.
https://www.orionsarm.com/xcms.php?r=oa-...ry&page=10

The frequently asked questions: https://www.orionsarm.com/xcms.php?r=oa-faq

You can click on the topics to read then. I copypaste that table of contents here.
Table of Contents:
I - Introduction:
The Future Isn't Here Yet...
II - The Orion's Arm Universe
Common Terms
Time and Scale
Sapients and Clades
Xenosophonts
Singularities Toposophy and Singularity Levels
Transapients and Archailects
Core Technologies
Megastructures and Macroengineering
Meta-empires Civilizations and Cultures
Historical Timeline (this timeline is outdated and we need to update it).
III - Appendices
EG Topic List: Culture and Society Needs update.
EG Topic List: Galactography Needs update.
EG Topic List: History Needs update.
EG Topic List: Science Needs update.
EG Topic List: Sophonts Needs update.
EG Topic List: Technology Needs update.

These topics are more updated in the Encyclopedia Galactica. EG for short.
https://www.orionsarm.com/eg-topic/45b177d3ef3b1      Culture and Society
https://www.orionsarm.com/eg-topic/45b17e0030cdc      Galactography
https://www.orionsarm.com/eg-topic/45b170f9e0941      History
https://www.orionsarm.com/eg-topic/45b1737b111b7      Science
https://www.orionsarm.com/eg-topic/45b1774e4ba77      Sophonts
https://www.orionsarm.com/eg-topic/45b175dbc0d73      Technology

If you have some doubt, you can ask us here on the forum or on discord.