Short answer

The official free entry is the 1666: Amsterdam Prologue. Panache presents it as the beginning of Noa's journey, while the paid product is the separate PC Early Access release on Steam and Epic Games Store. Calling the Prologue the playable demo is understandable, but Prologue is the official name.

What the published information confirms

Panache explicitly invites players to discover the 1666: Amsterdam Prologue for free and describes it as the beginning of Noa's path. The same official page separately promotes the paid PC Early Access release, which prevents the two offerings from being confused.

What remains unconfirmed

the official description does not establish a demo length, completion estimate, or feature checklist. It also does not support claims that Prologue progress transfers into Early Access, so those assumptions should not guide a download decision.

What to do next

Use the free Prologue when your goal is to see the premise before buying. Use the Steam or Epic Games Store listing when you want the Early Access build, and verify any account, save, or download details on the chosen storefront itself.

Prologue versus Early Access

The Prologue is designed as an introduction: Noa takes on the Collector role, begins a mystery that crosses centuries, and chooses the companion who will travel with her. The paid Early Access version continues beyond that introduction and is sold as an unfinished build that will grow through major updates.

What the official pages do not promise

The available official material does not promise save transfer from the Prologue, a fixed Prologue playtime, or permanent availability on every storefront. Download it to sample the premise, but verify the current store page before assuming progress or settings will carry into the paid build.

References

  1. 1666: Amsterdam — Panache Digital GamesPanache Digital Games
  2. 1666: Amsterdam on SteamSteam
  3. 1666: Amsterdam — Official Steam NewsPanache Digital Games / Steam