Quick answer
Explore with a revisit list. Official material confirms that Runes are tied to secrets and bosses and that trials provide rewards. It does not publish an exhaustive launch map, so a complete coordinate-by-coordinate checklist would require more evidence than is currently available.
Spoiler-light checklist
- Follow visible branches before leaving a room or region.
- Record doors, ledges, or passages that appear to require a later traversal ability.
- Recheck junctions after receiving a movement upgrade.
- Compare acquired Runes with the live menu instead of an undated community total.
- Complete optional trials only when the rules and restart behavior are clear.
- Note remaining achievement requirements that may point toward exploration, but do not assume every hidden achievement is a collectible.
Version 1.0.3c increased Sanctite drops and clarified trial menus. Those changes can make older farming and trial advice inaccurate even when the physical route remains valid.
Evidence boundary
The linked community walkthrough is a discovery source, not independent proof of every name or location it lists. This guide intentionally avoids repeating unverified secret counts, boss order, New Game Plus claims, or ending conditions. Use community maps as leads, confirm the result in the current build, and revisit this checklist as official documentation improves.