Ownership should feel ordinary
A DRM-free game should behave like a normal file you purchased. Download it, store a backup, move it to another personal machine and play without asking a server for permission every time.
That does not mean the download link must be public forever. The shop can protect delivery with expiring links while keeping the actual game free from activation checks.
Versions matter
A good library page should show the game version, upload date, platform, file size and checksum. Those details make updates understandable and give players confidence that they have the file they expected.
When a save format changes, the release notes should explain the migration. “DRM-free” should not become an excuse for disappearing support or mystery files.
Respect works both ways
Players receive a copy without intrusive restrictions. In return, the purchase is licensed for personal use rather than redistribution. The store can state that plainly without treating every customer like a suspected pirate.