: The installer verifies the user's OS and hardware specs before pulling the full game files to ensure compatibility.
: If the user has an older "free" version, the downloader only fetches the new "Lemma" feature files rather than the whole package. 2. "Free-to-Paid" Progression Bridge
: Ensure that progress made in the free version is stored in a universal directory (e.g., %AppData%/Lemma/Saves ) so it carries over immediately if the user upgrades.
: Track where players drop off in the free version to optimize the level design. 4. Direct Distribution Sources