Mainly to the GoG Team:

Two things that are missing from this site (i have no idea why):

1) (according to my cousin) One of the best RPGs in the world: Albion; its not on the site; why?

2) (personal experience) Z One of the best RTS is also missing; why?

3) (payment suggestion): is it possible to make it so that the site remembers card detais, so i dont have to type them in every time? (Steam does this)

Thank you

1 & 2. Those games are not on the site because GOG doesn't have permission from the rights holder to sell them.

3. GOG doesn't keep your card details for security reasons.

If a game isn't here it's usually due to legal reasons. It's possible that the rights holders and GOG can't come to an agreement or maybe it's unclear who owns the rights to a game.

The site doesn't save your credit card info for security reasons. It's less convenient but it also means that your information can't be stolen by hackers.

Both games ran under the MS-DOS operating system, so if you want to play them I recommend downloading DOSBox. There are hundreds of tutorials out there to set it up.