When you complete your Daily Activities in the Guidebook and get 100 Activity Points, you earn 60 Astrite. 1 week = 420 Astrite.

Around Solaris-3 are Resonance Beacons that players can use to teleport to after interacting with it. The Resonance Nexus is this game's map fragment system, also doubling as fast travel points. Unlocking these early will award you not only with a small amount of astrite but also a chunk of Union XP and materials
Make sure to enable these as you travel around! Activating them will reward you Asterite.

Most of the quests available in the game reward the players with a set amount of Astrite upon completion. Make sure to complete them when you can! Each can award you with a few hundred.
Main Quests will naturally give you more astrites and xp, but I highly recommend to also complete side quests as you see them. (at least collect the quest)
Each update will drop even more story quests, as of right now with Zani's banner, it is extremely helpful to quickstart the newest quest as it rewards a chunk of Astrite, but also unlocking the newest location to be able to explore and gain even more.

Do not forget to do events because they can offer usually anywhere between 500-1600 astrites worth. I am also including Tower of Adversity here because you can complete this as you grow your account. Alongside providing showcases of gameplay, it also awards you with many helpful materials, unique weapon skins, echoes, etc.
You get 1200 Astrite total after getting 12 crests within the Stable Zone, You can get the 4-star character Yuanwu for free during the Rumbling Hollows event.
Hazard Zone= 700.
Experimental Zone= 1000.
Overdrive Zone= 400

As your account grows you will be able to get all the crests needed to maximize gain. It doesn't hurt to see how far you can go, as personally, it helped me keep focused on how I spent my resources.

Collecting Echoes to get equipment for your Resonators is one part of the grind, but another is to improve your Data Bank! It is helpful to use the guidebook to hunt down what you need.
On top of being able to get rarer versions of Echoes as you level up your Data Bank, you will be rewarded with Astrite upon leveling it up!

Exploring the different areas of Solaris to completion will allow players to level up their Pioneer Association Level. You can go to it to see what you need, you will do most of it as you complete these other tasks.

Moving on to the next Level will provide the player special rewards, which includes Astrite as a cherry on top!

Tidal Heritages are special nodes that act like chests, and are are usually locked behind a group of Tacet Discords. Defeating them will unlock these for collection, which rewards the player with both Astrite and Union EXP.

Finding and opening Supply Chests scattered across the world will automatically reward players with Astrite. Some of them are hidden behind challenges and puzzles that players can try to solve!

The amount of Astrite given is determined by the rarity of the Supply Chest opened. They also provide some amount of Union EXP, so do not hesitate to try and open every Supply Chest you see!

As you complete trophies, they reward the player with Astrites. This will take a lot of time, but often the few that you get can sometimes make the 10 pull.

Some Trophies have tiers, that reward the player multiple times with more Astrite as they achieve higher landmarks. Upon completing many of the trophy books, you are awarded showcase items.



Whenever new information about the world pops up, try reading the Tutorials every now and then. For each one that was read, 1 Astrite will be awarded.
It might not be much, but it eventually adds up to a sizeable amount due to the sheer content available in the game.

Purchasing a Lunite Subscription will award the player 90 Astrite daily just by logging into the game at least once a day, lasting 30 days.
In total, players could earn 2700 Astrite by completing the Lunite Subscription successfully.
This is an optimal purchase for budget and everyday players. Just be sure to login EVERYDAY for the next 30 days.

Upon buying the Insider Channel, which is the premium version of the Battle Pass, players will be immediately rewarded with 680 Astrite as part of the Level 1 reward.

This I would recommend only for active, best suited for daily players. As to get the rest of the pulls and astrites, you need to complete weekly, daily, and event tasks. For a casual player, it may not be suited for them, but the battle pass weapons are usually a strong pick for several characters.

[All Active Codes]
WUWA4PC - 50 Astrite, 20,000 Shell Credits
WUTHERINGGIFT - 50 Astrite, 2 Premium Resonance Potions, 2 Medium Revival Inhalers, 2 Medium Energy Bags, 15000 Shell Credits
DCARD3VN7M - 5 Medium Resonance Potions, 5 Medium Energy Cores, 500 Shell Credits
BAHAMUTKXMHM - 5 Medium Resonance Potions, 5 Medium Energy Cores, 500 Shell Credits