Note: These are games that cannot be bought on any digital storefront anywhere. Not on Origin or Uplay or Steam or Blizzard or GoG. While you may still be able to find a download for them online on an illicit site, it's not guaranteed that such sites will remain up since they could get shut down at any time immediately, it's not exactly convenient to not have it in your digital games library either for a couple small reasons, and also because they're not digitally purchasable, you cannot support the original developers or even show support for the game itself. And finally, having it on a storefront of some kind gives it at least a little more popularity and makes it available for big sales which also net it some more interest.
1. Aliens vs. Predator 2
You can get the very first one and the latest one, but you can't get the best one. Don't ask me why. I do not know. My guess is the rights are lost to the ages. Multiplayer was also incredibly unique and still to this day untopped. Fuck those cheating Predators though sitting in the corner spamming that dumbass disc...
2. Freelancer
This is easily explainable although still infuriating. After Freelancer finished and a second one was in the works, Microsoft decided out of the blue that it just wasn't good enough and shut the ENTIRE SERIES down. Digital Anvil was closed and the Freelancer IP was locked in the basement and never spoken of again despite constant outcries for its release. Microsoft has simply just sat on it since.
3. The Myst Series
This one is weird because there are some Myst games you can buy on Steam but it's only a few and the rest are totally missing. Thankfully, the best one, Riven is available to buy but that's about it. A huge shame but at least its spiritual successor has been released now! [http://store.steampowered.com/app/306760/]
4. Soldier of Fortune
The second and third SoF games were never anything to write home about, but the first one is definitely still amazing. However, it just simply doesn't exist on any storefront. Small wonder why though when the second and third ones flopped as much as they did. Too bad they had to pull the first one along with it.
5. Mechwarrior 3
Microsoft has released the fourth one totally for free so that's not actually too much of a problem. However, the third one, probably due to obscurity, is not available at all. There are many people that liked 3 and many others that liked 4. The main difference between them being that you couldn't just load whatever the hell you wanted to on a mech in the fourth one. Some people loved and hated this. But they have the fourth one already at least. The third one is not available and that needs to change.
6. Jazz Jackrabbit 2
Getting to the lowest on the totem pole, I'll fully admit the first Jazz Jackrabbit hasn't aged all that well, but the second one is definitely still solid. What's weird now is that ALL the Unreals are all on Steam. You can buy UT99... UT2004... Unreal 2 even. And of course, Epic holds all the rights to these. So why don't they release the rest of their games on Steam?
1. Aliens vs. Predator 2

You can get the very first one and the latest one, but you can't get the best one. Don't ask me why. I do not know. My guess is the rights are lost to the ages. Multiplayer was also incredibly unique and still to this day untopped. Fuck those cheating Predators though sitting in the corner spamming that dumbass disc...
2. Freelancer

This is easily explainable although still infuriating. After Freelancer finished and a second one was in the works, Microsoft decided out of the blue that it just wasn't good enough and shut the ENTIRE SERIES down. Digital Anvil was closed and the Freelancer IP was locked in the basement and never spoken of again despite constant outcries for its release. Microsoft has simply just sat on it since.
3. The Myst Series

This one is weird because there are some Myst games you can buy on Steam but it's only a few and the rest are totally missing. Thankfully, the best one, Riven is available to buy but that's about it. A huge shame but at least its spiritual successor has been released now! [http://store.steampowered.com/app/306760/]
4. Soldier of Fortune

The second and third SoF games were never anything to write home about, but the first one is definitely still amazing. However, it just simply doesn't exist on any storefront. Small wonder why though when the second and third ones flopped as much as they did. Too bad they had to pull the first one along with it.
5. Mechwarrior 3

Microsoft has released the fourth one totally for free so that's not actually too much of a problem. However, the third one, probably due to obscurity, is not available at all. There are many people that liked 3 and many others that liked 4. The main difference between them being that you couldn't just load whatever the hell you wanted to on a mech in the fourth one. Some people loved and hated this. But they have the fourth one already at least. The third one is not available and that needs to change.
6. Jazz Jackrabbit 2

Getting to the lowest on the totem pole, I'll fully admit the first Jazz Jackrabbit hasn't aged all that well, but the second one is definitely still solid. What's weird now is that ALL the Unreals are all on Steam. You can buy UT99... UT2004... Unreal 2 even. And of course, Epic holds all the rights to these. So why don't they release the rest of their games on Steam?