ArcturusXIV: Regardless, Dark Heart of Uukrul & Azrael's Tear are on my recommended list of games for GoG to purchase and add to the "Sell" list.
You still don't understand. It's not a matter of GOG "deciding" to sell a game and just start selling it. Nor is it a matter of GOG "buying" games to sell.
These are, roughly, the steps involved in getting a game into the GOG catalog:
1) Find out who holds the rights to the game. This can be next to impossible with some old games, and generally it's more difficult the older the game is. Sometimes, the original developer has changed hands a number of times over the years, gone bankrupt and had their assets auctioned off, had specific IPs sold off to others, etc. Sometimes the rights to a game are split up between several different parties, which makes it even more problematic.
2) Having found the rights holders, GOG needs to convince them to sell the game on GOG. This can be a very lengthy process, provided the rights holders are interested at all.
3) Now GOG needs to negotiate a contract with the rights holders. How large a percentage of each sale goes to whom, etc.
4) Now the technical work begins. If it's a DOS game, it's not so difficult. DOSBox does most of the work, but if it's an old Windows game, sometimes it needs some kind of technical black magic to run on a modern OS. Sometimes they have to give up in the end. As far as I know, they never get access to the games' source code, so they are limited to what they can do "from the outside", so to speak.
5) Then the whole thing needs to be wrapped in an installer. Any extras they can find need to be put together, and a page and forum for the game needs to be made and added to the site.
6) Now they can start selling the game.
So go easy on your "add this, do that" rhetoric. It's just not that simple. You can, however, vote for the game on the wishlist, and talk about the game on the forum with others who remember it as fondly as you do. And if you're lucky, one day it'll be here on GOG. But it won't be because you made a post saying "ADD THIS GAME GOG".
Edit: Ninja'd! I had to do some other stuff in the middle of writing my post.