Always important in an RPG-like game is the economy and in particular the currency called in Across The Time “Chronoton”.
It will be used mainly to buy many items in stores that will serve you in your adventure.
Monsters will drop some coins whose number will vary according to their difficulty, and you will have to complete missions or sell the loot from a specialist dealer to gain Chronotons.
But it will not neglect another currency that reappeared in Across The Time 2 “Ecailles Souveraines du Chaos“. This currency is rare, and you can purchase powerful sovereign items in a store planned for this purpose.