Dream 1: I was playing Quake 1 using my old mod apparently, and in coop with someone, and also some custom level that was really really huge, and mostly empty. It was some kind of work-in-progress level that was supposed to be combination of levels from a different mod, and it was mostly happening in a castle. After a while we managed to find the part of level where there were actual enemies and pickups, i've gotten The Acid Gun, The Plasma Gun and The Minigun(An actual weapons from the mod), then after an elevator there was a room with scrag type enemies. Then later there was some area with lava and a bridge, guarded by some weird enemy that had very effective defense versus projectile attacks. Then after going through teleporter, camera switched top-down and started looking more like Doom, there was very weird platforming segment with teleporter mazes and weird navigation. But soon we have reached the top of the area, where camera switched back to first person and where we had to deal with some kind of upgraded mancubuses. Then after another portal there was huge arena and i was playing coop with SilentEternity now. We had to fight through horde of various Doom enemies, some were custom, and also at least four cyberdemons. Dream 2(fragments): I was playing some game where i had to control some kind of cyborg and there were two more on my side, controlled by AI. We had to go through some indoors complex with acidic lakes to fight enemy team, which consisted of three cyborgs as well, we easily won because AI was not really good at it. Dream 3(fragments): I was playing another game, in which i had to search through some amusement park for something, there were various characters i talked to, but eventually some enemy helicopters arrived and some ally helicopters, i helped destroying enemy helicopters with some kind of energy cannon then i got into one and we flied to different area, which was some dark city. There i with group of some soldiers had to set up defense and destroy some enemy attack waves.
Dream recall from today's naps. There was some forum game/video game(It kept switching at places), where player character had to search through very abstract-style factory place, there were two brown puppet things in one of the rooms and some kind of huge engine/mechanism. Then there was different forum/video game that was happening in same place but in different time, one of players was using some 'meta' actions to summon various things, at one point he summoned spherical metallic drone with a laser. He also suggested to open the portal into the other forum game. Then later another player joined the party, he was a dragon. And after some talk everyone exited the factory outside and major enemy appeared, triggering the boss fight.