Having bought 2 games, I would rather buy them on disks. I find the downloaded games are to restrictive. I feel that once you buy you should be able to play as many times as you want without further downloads. I do not like the Download Manager for the Adventur Shop games.

Try gog.com for downloadable games. You can burn the installers to disc and never have to download again, and you can reinstall as many times as you want. The Download Manager is optional.