Prototype environment

All market values are illustrative demonstration data. This site does not execute trades or connect to third-party marketplaces.

Search databaseItems, collections, and games
Navigate OpenPrototype index

Market structure

Explore ecosystems,
not isolated listings.

Collections preserve the relationships between games, containers, sets, constituent items, market breadth, and explainable conditions.

Freshness43 sec
Tracked items1.2M
Observed listings5.8M
Unusual conditions184

All values are demonstration data; coverage and freshness language are part of the prototype trust model.

Why collections matter

Context reveals whether movement is isolated or shared.

Collection-wide breadth and activity help distinguish a single-item event from behavior affecting an ecosystem. Production indexes must publish constituent and weighting methodology.

4Prototype sets
74Represented items

Entity model

Game → collection → item → event.

The prototype treats relationships as first-class data so research can move through the Steam item world without relying on flat search results.

Inspect the model