The short answer
After the tutorial, use Marrow Keep as your reset point, then take the northern route into Fainweald. The early objectives there teach the open-world loop without forcing you through Mammon's harder encounters.
A safe first-hour route
Treat this as a flexible route rather than a mandatory quest chain.
- Speak to the available NPCs and activate the services inside Marrow Keep.
- Leave toward Fainweald and secure the nearest useful map information.
- Unlock an early permanent Shell before investing heavily in upgrades.
- Return to the Keep, set a simple weapon-and-Tarstone plan, then explore outward.
What to avoid early
Do not spend every resource on the prologue setup, and do not read the open world as a level-scaled checklist. If enemies in southern Mammon demand perfect play, step back and build your route in Fainweald first.