Marie's Adventure Heritage Plane — Lore & Completion

The Heritage plane is a story-linked dimension in Marie’s Adventure tied to goddess lore and late-game collection goals. This wiki page documents only what Steam achievements confirm — not fan-made coordinate maps or invented fast-travel pins. Two trophies anchor everything here: The Three Goddesses Statue? fires when you enter the Heritage plane for the first time, and Scion’s Legacy requires you to unlock every Heritage. Everything else on this page connects those facts to pregnancy routing, overworld travel, and completion habits without fabricating dungeon layouts.

For the full trophy roadmap, open Achievements. For overworld context before you chase Scion’s Legacy, read World Locations and the core Pregnancy System — Heritage exploration still advances gestation while walking, but birth scenes remain Sylva-only.

What achievements prove

Achievement	Verified trigger	Wiki implication
The Three Goddesses Statue?	Enter Heritage plane first time	You need a story gate that transports you into the plane once
Scion’s Legacy	Unlock every Heritage	Long completion arc; track flags manually if UI is sparse

Global Steam stats shortly after launch show The Three Goddesses Statue? unlocking for a moderate slice of players — earlier than ultra-rare completion trophies — while Scion’s Legacy sits with other sub-0.5% grinds. Treat first entry as mid-to-late campaign content, not prologue space.

What this page deliberately omits

Community wikis sometimes paste fake map coordinates or ASCII grids for planes that never shipped with public datamines. Marie’s Adventure has no verified public coordinate dump for Heritage rooms at the Aug 2026 launch window. We will not invent:

• X/Y tile positions
• Chest counts per room
• Secret wall lists
• “Optimal route” screenshots without source

Follow in-game quest markers, goddess statue dialogue, and achievement pop-ups instead. If No Budget Developer publishes an official map later, Release Notes will link it.

First entry — The Three Goddesses Statue?

The trophy name references three goddesses — consistent with Marie’s divine fertility arc and Scion framing on the Marie character page. First entry usually arrives after overworld story progression unlocks the plane transition (exact chapter varies by patch; verify against your save chapter before farming).

Checklist for a clean first-entry run:

1. Finish prerequisite overworld flags listed in your quest log — do not sequence-break without backups.
2. Manual save in Sylva City before the transition if you are pregnant; walking inside the plane still ticks gestation.
3. Enter the plane once, confirm the achievement toast, then note which NPC or statue offered the return gate.
4. If dialogue loops, use F5 or manual reload per Controls and Known Issues.

The achievement is first visit only — repeating entry does not re-fire the trophy.

Scion’s Legacy — unlock every Heritage

Scion’s Legacy sits in the same completion cluster as Fashion Master, Old World Testament, and It’s Beyond Mere Dedication. on the Achievements page. Heritage unlocks are individual flags — missing one blocks the trophy even if you cleared main story.

Practical completion habits:

• Maintain a spreadsheet or checklist keyed to in-game Heritage names as you discover them — the game may not expose a single “12/12” menu on early builds.
• Separate save slots: one story purity slot and one completion sweep slot if optional scenes diverge.
• Cross-read Artifacts and World Locations when Heritage gates tie to dungeons or towns you already visited — backtracking is normal.
• After each patch, reload your checklist against Release Notes in case new Heritage entries appear.

Do not confuse Heritage unlocks with birth count achievements like That’s a Lot of Babies! — different counters.

Pregnancy while exploring Heritage

Marie’s Adventure does not pause pregnancy in alternate planes. Rules from Pregnancy System still apply:

• Walking and active play advance pregnancy percentage.
• Sleeping alone does not advance the meter unless you are at 100% in Sylva City Inn to trigger labor.
• Milk capacity (300 / +50 per extra child) remains readable in the status menu for save-scummers.

If you enter Heritage while pregnant:

1. Check percent and milk capacity before long loops.
2. Carry teleport or return items if the plane gates one-way segments until story flags reopen exits.
3. At 100%, exit to the overworld and route to Sylva City — no Heritage inn triggers birth.

Companion pregnancies (Elucia, Ran) follow the same walking rules once unlocked (Companions).

Relationship to overworld pins

Heritage content connects narratively to goddess statues and Scion identity, but travel still flows through the standard overworld graph documented on World Locations. Think of the plane as a gated layer rather than a replacement for Sylva hub services:

• Shops and Inn birth services remain in Sylva.
• Church fertility prep happens in the overworld, not inside Heritage.
• Brothel sluttiness grinds stay in town districts (Brothel Guide).

Plan Heritage sessions between Sylva delivery cycles if you are chaining birth power-ups (Party Progression).

Completion order suggestion

1. Clear main story beats until first plane access (The Three Goddesses Statue?).
2. Establish Sylva save-scum corners for pregnancy if you are also hunting litter trophies.
3. Sweep Heritage flags with a checklist until Scion’s Legacy pops.
4. Return to Achievements for remaining collection stacks (outfits, artifacts, bestiary).

Related pages

• Achievements — Full 69-trophy table.
• World Locations — Overworld graph and inn rules.
• Pregnancy System — Walking, milk capacity, Sylva birth gate.
• Sylva City — Only Inn that completes labor.
• Marie — Scion narrative context.

The Heritage plane rewards patient completionists — not speedrunners with invented maps. Enter once for the goddess statue trophy, track every Heritage for Scion’s Legacy, and never sleep anywhere except Sylva when the meter hits 100%.