Call of Duty 4: Modern Warfare, the classic one from 2007.
Of course with Modern Warfare Remastered coming out in less than a week, which is sadly bundled with Infinite Warfare, i feel like I should go back with the Crew Expendable and get All Ghilled up.
The sad part is that the CoD4 Dedicated Servers on PC may have already shut down ages ago, but given how MWR is bundled with Infinite Warfare and it would cost a FORTUNE in getting even just the Legacy Edition, some people may find ways to revive the old CoD4 servers again FOR PC.
Duke Nukem 3D
Of course this has a place in the nostalgia train simply because its the first FPS game I ever got to play where i saw strippers, interactions that don't really mean anything other than small forms of entertainment, a hero who was basically a symbol of testosterone nourishment, and obviously it was the 2nd FPS game i got to play after Doom, and it was a healthy transition before going in to Quake 2..
speaking of Which. Quake 2 is also on board. Mainly just playing the campaign again since I never really finished this game on PC. I remember having the PSX Quake 2 but I only played it on the Easy difficulty since FPS on consoles were never my thing even as a kid. Heck I was worse.
Killzone 2
Yes ladies and birds, Killzone 2 is nostalgia for me since it was one of the very first PS3 games that I had so much hype for and when i had it, I was proud and loud to be a PS3 owner. If I ever had to make a Top x-hundred list of First Person Shooters that I have ever played, Killzone 2 is definitely on my list.
Killzone 2 is basically a huge improvement over Killzone 1. While Killzone 1 was a rather shoddy and buggy mess that had potential to be great, Killzone 2 was simply it being perfected in its Execution. The single player campaign was alright, but what really got me was the Multiplayer. Multiplayer or Skirmish with Bots or actual online multiplayer was a blast. Its too bad that we may or may not see any new Killzone games for the upcoming years. Heck, I need to check if Killzone Shadow Fall still get support from its own devs for its multiplayer component...
Also, despite me being TERRIBLE on playing First Person Shooters with a controller, Killzone 2 was still a game i played because I really loved the Killzone series. Every time i boot up our PS3 and play some of that Killzone 2, courtesy of the Killzone Trilogy Collection
Every Dynasty Warriors game
I pretty much mention every DW game to be ever released as part of my nostalgia trip for the one big simple factor -> It was Dynasty Warriors that made me want to have a PS2 years and years ago. Every time I play a game from said series, I look and think back at those days as a kid where I was asking my dad that I wanted a PS2. If It weren't for the Dynasty Warriors games for the PS2, with 3 being the game that i first saw from the series, I would never have asked for a PS2 and just skipped ahead and let PC be my platform forever.
I bought every DW game to be released save for the first DW game, which wasn't even the same genre as the rest of the series, and DW2, which was so rare that I couldn't find anyone who had it the time i came to know and love the series. I've mentioned this plenta of times already. DW3, DW3XL, DW4, DW4XL, DW4 Empires, DW5 (Base game, XL, Empires) <---- If I remember DW5 is the game in the series i spent the most time on, then onward to DW6, DW6 Special, DW7 (i didn't bother with the spinoff expansions), and finally DW8 (Base Game, Xtreme Legends, and Empires). If I have to count the Warriors Orochi Series (Crossover of Dynasty and Samurai Warriros), thats 1, 2, and even 3. So yeah that's literally my library of DW games.
Even though there are some DW games for the PC (DW4 Hyper, DW6, DW7, and even DW8 in the form of Xtreme Legends: Complete Edition), i still prefer to play the DW games on our good ole Sony PS consoles (PS2 and PS3) because of nostalgic biases. It just doesn't feel the same playing the games on PC, heck if I wanted to play on PC, i have specific games and titles for that. Not for Dynasty Warriors.