Texel density is a design decision, not a technical one
Deciding how many pixels per centimetre your world gets is an art-direction call disguised as a spreadsheet. Get it wrong and no amount of texturing skill will save the look.
ReadTag
Everything on the blog tagged game art.
Next step
We'll tell you straight whether we can hit it, and what it would take if we can. No deck, no discovery phase. Just an answer within two working days.