Budget Atlas Strategy for Leveling and Currency Farming

This strategy targets solo completion of the Atlas without purchasing maps, focusing on Path of exile currency Orbs of Horizon to fill out the Atlas and increase map quality:

Avoid expensive unique maps like Twilight Temple and Coward's Trial.
Utilize chaos to complete cheaper unique maps.
Prioritize completing normal maps, cheap unique maps, invitations, and defeating Searing Exarch or Eater of Worlds bosses for progression.
Invest in boss services for voidstones to sustain high-tier maps effectively.
Alch & Go Atlas Strategy for Low Budget Builds

Once initial maps are completed and expensive unique maps are addressed, transition to this strategy:

Establish a basic skill tree setup (54 pts) for efficient map progression.
Focus on Shrines and Harbinger (76 pts) for buffs and additional drops.
Utilize Expedition (117 pts) for focused currency farming through logbooks and expeditions.
Employ Blight (117 pts) for tower defense strategies that benefit non-meta builds.
Incorporate Legion (115 pts) and Ultimatum (120 pts) for maximizing rewards from specific encounters.
Opt for Searing Exarch over Eater of Worlds for POE currency for sale enhanced staple currency drops.