One work can have several releases
An edition is a particular released form of a game. It may identify a language version, a platform adaptation, a substantial revision, or a documented content configuration. Adult Game Index groups editions under a stable game record when they represent the same underlying work. Multiple store listings do not automatically create multiple games.
The useful question is what changed and for whom. A different display title might identify a localization, while a nearly identical title might belong to a separate remake. Identity should be resolved using the responsible organizations, release history, and official descriptions rather than punctuation or cover artwork alone.
Ports, remakes, and revised editions
A port adapts a work for another platform. A remake rebuilds or substantially reworks it. A remaster generally presents an updated version, but the term alone does not establish the extent of a change. Publisher terminology is not perfectly uniform, so entries should state the documented differences instead of making the label carry the whole explanation.
A new edition may have different interface languages, voice tracks, operating-system support, or included material. None of those differences should be silently carried over to every release of the game. A comparison is most useful when it names the edition, platform, release date, and the specific feature being compared.
Expansions and demonstrations
An expansion adds to an existing work, but whether it requires the base game must be checked. Downloadable content can include playable additions or supplemental items. Steam’s documentation lists examples such as levels and characters, and also distinguishes material that does not appear inside the game. A separate product record is therefore not sufficient evidence of a standalone game.
A demo is another associated release rather than an automatic duplicate of the full work. Its scope and availability may differ. When a demo has its own platform support or language coverage, an encyclopedia should describe those facts as properties of that demo and avoid presenting them as confirmation about the complete game.
A package is not always an edition
On Steam, a package determines which applications or content a license grants. A bundle can group several existing products. A label such as Deluxe Edition may therefore describe a collection containing the same base game plus supplementary items, rather than a rebuilt executable. Inspect the listed contents before deciding how it relates to a game record.
Adult Game Index keeps commercial groupings separate from work identity. A collection does not become a new sequel simply because it has a new store page, and its release date does not replace the dates of the included games. The same principle keeps a soundtrack, artbook, language release, and substantial remake from being collapsed into one misleading list of interchangeable versions.
References
- Packages. Valve / Steamworks Documentation.
- Bundles. Valve / Steamworks Documentation.
- Downloadable Content (DLC). Valve / Steamworks Documentation.
- Demos. Valve / Steamworks Documentation.