Hoard Your Valuables
As you play through Code Vein and explore the world, you’ll inevitably pick up junk items like Old World Materials and other mundane things like a Classic Camera. You might think that these are probably for selling, but you’d be wrong.
In fact, they’re meant for trading with NPCs back at Home Base. By giving these valuable items to an NPC, you’ll accrue trading points with them, which can be exchanged for even more useful items like Chrome and even their beloved weapons.
However, I highly recommend hoarding all your valuables, at least until you’ve recruited a few more people to Home Base.
Another interesting thing that Code Vein doesn’t tell you is that certain valuables will reward you with more trading points if you give them to the right NPC. Besides, with how expensive it is to get the NPC weapons, and how rare it can be to pick up valuables, you’ll want to expand your options a little before committing to one.