Enumerate the full Steam app catalog using IStoreService/GetAppList after ISteamApps/GetAppList v2 deprecation
domain: partner.steamgames.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Note that ISteamApps/GetAppList/v2 is deprecated because it no longer scales to Steam's catalog size
Call IStoreService/GetAppList with a publisher API key instead, which supports pagination via last_appid and max_results
Page through results using the returned have_more_results and last_appid cursor until exhausted
Filter by app-only, include-games, include-dlc, etc., depending on which fields IStoreService/GetAppList exposes for your key's access level
Cache the catalog locally and refresh incrementally rather than re-pulling the entire list on every run
Known gotchas
ISteamApps/GetAppList/v2 still technically responds but is explicitly called out as deprecated and unreliable at scale -- new integrations should not depend on it
IStoreService endpoints require a publisher/partner API key, not a plain Web API key, so a normal developer key may be rejected
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