Doom
Mother of all First person shooters (ok, wolfenstien was first but it was boring). In this game you are stuck on one of the moons on Mars guarding the geeks that work there and then a experiment goes wrong (like they always do) and the portal to hell opens up and demons attack and rip your friends apart. You need to slay the hordes of hell and stop them. Fun both in single and multiplayer, co-operative rules . Coolest weapon must have been the plasma gun and the chainsaw, I like the idea that they had any use of a chainsaw in space :)


Doom
So fun. Get it now :).


Doom 2: Hell on Earth
You returned to earth at the end of doom and find out that your friends from hell have arrived before you. More monsters that need to die, more levels and also a nice double shotgun for you to use.


Doom 3
Doom was action and Doom 3 try to be a horror game. But it does not work as everything is so predictable that one almost fall asleep. Every monsters stands where you think it will and the only horror is when you walk to the next level and see that it is the same sci-fi labs environment as the last one. There are max three monsters at once and the first time you meet a new monster they break the flow with a worthless cut-scene to show it off. Doom I and II are great games and Doom 3 does not deserve to use the same name.


Doom 3: Resurrection of Evil
This is a basic Doom 3 expansion without any real value. All bad things on Doom 3 still apply and they also added a new weapon that works the same as the Gravity Gun in half life 2. There is not much use for it as so few things in Doom 3 can be interacted with.


Doom II: RPG
Turn based first person shooter where you go a UAC base on the Moon to stop the demons from hell.


Final Doom
Two more campaigns for Doom 2, The Plutonia Experiment and TNT: Evilution with 32 levels each. Really difficult and you have to walk around looking for each and every spare bullet you can find.


Master Levels for Doom II
Expansion pack to Doom 2 with 21 new levels. They are not connected so you start without any weapons beside the pistol on each level.


Quake
Worthless singleplayer with a story that seems to been done on a coffee break. In singleplayer you explore four different episodes with a number of levels and the goal of each level I simply to shoot your way to the exit. At the end of each episode you find a magic rune that you take with you and when you have all four runes a secret path in the hub that connects all the episodes open up and you can go and kill Shub-Niggurath, the final boss. The singleplayer campaign can also be played in co-op and it makes it a bit more fun :).

Multiplayer is deathmatch and fun but the thing that made Quake epic was how easy it was to modify and the number of modifications that was made for the core game.

A fifth episode, Dimension of the past, was released for the Quake 20 years anniversary in 2016 by Machine Games.


Quake 2
First-person shooter that have nothing to do with Quake besides the name. It has a better story (they did it over lunch) but it's nothing to think to much about. The player is in the role of a Marine ( no hair ) that take part of an attack against an alien race called the Strogg. The attack more or less fails and the player is one of the few who survive so it's up to the player to kill of all the aliens including the Strogg leader Makron. You also get objectives to follow in the game so it's more of a linear battle across the levels you go through. Railgun weapon was fun.

Multiplayer works like Quake with deathmatch, capture the flag and you can also play the whole game in co-op. Like Quake this game was easy to modify so there where many cool mods made for it. I played mostly Capture the flag and 3TCTF, a mod with three teams playing capture the flag.


Quake 3: Arena
Quake 3 is a multiplayer-focused first-person shooter where your main goal is to kill the other players. It also have a capture the flag mode if you are into that. Mix of weapons from the other Doom and Quake games but I must say that I prefer Unreal Tournament over this game.


Quake 3: Team Arena
Expansion pack for Quake 3 with new game modes, weapons, maps and little else.


Quake 4
The story goes on from Quake 2 and this game takes ideas from Halo, Starship troopers and Half-Life and it does not go that well. You play another space marine this time and you have to fight of new Makron that they Strogg has created. Mostly I found the gameplay tiresome and I hate games that have a 'jump past three traps in a row' section. There is a part in the story when the player get put inside a machine to turn him in a Strogg and it was fun to see but it was not used well by the story.


Rage
This first person shooter has some great looking environments but the rest is not good. Feels like I'm watching a film where the set designer is a academy award winner and the rest of the films only experience is the A-Team. It's all window dressing with nothing behind it.


Spear of Destiny
Prequel to Wolfenstien 3D where the player try to recover the Spear of Destiny from the nazis by killing more or less all of them. Not much new in this one really.


Wolfenstein 3D
One of the first-person shooters and also the basic template for all future ID Software games :). You take the role of a American soldier on a mission to win WWII on his own by running around looking for keys, killing people and collecting and shooting people and collecting treasure.


Wolfenstein RPG
Turn based first person shooter. Visit castle Wolfenstein and kill everyone that look at you the wrong way.