Direct answer
Find the game, open its page, read the license, then download only if a file is listed. If it is not listed, use the source link or pick another title.
Follow the game page over the three marketing cards. “No DRM” and “full ownership” are not promises we can make for every freeware license.
Stop after step one if the listing has no file and no source link. There is nothing to install yet.
Open the game page, read the license, then download only if a file is listed. No account is required for that file. “No DRM” and “you own it” are not promises we can make for every freeware license.
Search or browse. The card is not the download. The game page is.
If Downloads is missing, stop or follow the source link. Do not hunt for a copy elsewhere based on our title.
Follow the installer or the developer readme when it disagrees with our generic steps. A failed launch is a requirements or upstream issue.