What are the names of these games?

There were a few DOS (I think DOS) games that I watched my brothers play, though I don't remember them. I'd like to see if I can play them or watch a video.

1) I think this one starts at a house where a baby cries and you go to the kitchen and get a bottle and feed the baby. When you leave the room the baby cries again. When you get back into the room, an alien kidnaps the baby and teleport away. You go to a lighthouse where I think you fight them off or solve a puzzle to outwit them.

2) This took place in ancient Egypt and there was a puzzle where you lay a trap on a doorway where a log knocks out someone who had a key to fly through space and fight.

3) This one starts in a futuristic machine called Pegasus and if you don't collect a chip, you can't go back. The first level you go back in time to the dinos and collect something. If you don't lay the Pegasus chip 1 screen from where you teleport, the game ends. I also remembered an underwater level.4) A space battle game. I think in one level you try to destroy a large tower. I'm sure you are able to switch weapons and upgrade them.