There are a large number of currencies in the Tower of Fantasy game, they can be spent in a special store that can be found in the menu - Commissary.
This guide contains recommendations for purchasing in the Commissary, as well as describes how to get currencies.
Crystal Dust Store
We recommend spending blue Energy Crystal dust only on Booster module and Advancement module. Purple for equipment and crystals that will be added in the next updates.
Energy Crystal dust can be obtained by spending Vitality in Dimensional Trials / Interstellar Exploration / Omnium Beacon / Spacetime Domain
We recommend spending Black gold only on SSR weapons that need to be upgraded to 6 stars. Do not rush to spend Black Gold, approach it wisely.
You get black gold for every spent gold nuclei.
The Matrix Store is similar to the Weapon Store. Change the Base Chip only to the Matrix boxes you need. Base Chip you get every time you buy Matrices in Special Orders.
In Crew Store we buy only Potent Omnium crystal. Merit special currency can be obtained by completing Guild activities.
We recommend taking Gold and Black Nucleus from the Support Store.
Support points can be obtained in group dungeons by helping others without spending Vitality.
In the Points Store, we recommend buying gifts (blue) for friendship with Simulacrums.
Training points can be obtained daily in Ability Training