Well, i really don't know what to write, so i'll start with some bits:

Reccuring Nightmare 1:

This one began when i was about 6(?) an ended when i was about 11(?).
I think the action was always a bit different ... but in the core it was like this:
My parents didn't like me so they pushed a button that made the stairs go to the ceiling opening a hole with something like a melting pot or lava or that alike, where they wanted to burn me.

Reccuring Nightmare 2:

This one started earlier maybe with 5 stayed till maybe 12. Easy actions:
Something bad was happening, i was screaming "No, no!" ... but noone heard or saw me ... then the ... well the world came to an end ... really hard to tell what it was that made it end ... something like, explosions, burning, electric shock, pressure cruhsing everything ... maybe it was me that died ... i don't know.

Recurring Nightmare 3:

This one is interesting. It started with maybe 16 or 17. Only action was me killing everybody, sometimes shooting, sometimes slashing them with knifes ... sometimes both. Interestingly after these dream i always was calm, happy, loved my friends and my girlfriend. But i slowly grew fear of myself.

Recurring Nightmare 4:

It started when i was maybe 20. Occurring maybe 3 or 4 times a week. Location: Hell. It's interesting ... i don't believe in hell, but i believe you can live in hell on earth. Though that in my dream the place didn't look like something i've seen before.
Thee room only had one flat wall. (yeah, that doesn't make sense, but thats the dream) It had no ceiling. No way out. The floor was, nah it was not really a floor, it was something like mud, mostly blood and shit. The wall was made of clotted blood and bodily parts. I tried to get through the wall, but no matter how much i tried to get through there, i didn't get through.

I don't know when this dream stopped, since i stopped to be aware of my dreams with maybe 22. Nowadays i remember some dreams and sleep much better, this dream seems to be gone forever :D