Во что поиграть на моём пк?

Выбирай, все советую:
Duke Nukem 3D (1996), Quake 2 (1997), Fallout 1-2 (1997, 1998), Resident evil 1-3 (1996, 1999, 2000), System Shock 2 (1999)

2000-2004 годов: Dino Crisis 1-2 (2000, 2003), Soldier of Fortune 1-2 (2000, 2002), Deus Ex (2000), Diablo 2 (2000), Return to castle Wolfenstein (2001), Clive Barker's Undying (2001), Serious Sam (2001), Max Payne 1-2 (2001, 2003), James Bond 007: Nightfire (2002), Mafia (2002), Warcraft 3 (2002), Disciples II с дополнениями (2002), Hitman 2: Silent Assassin (2002), Medal of Honor: Allied Assault (2002), Silent Hill 2-3 (2002, 2003), Star Wars: Knights of the Old Republic (2003), XIII (2003), Unreal II: The Awakening (2003), Project I.G.I 1-2 (2000, 2003), Halo: Combat Evolved (2003), Tom Clancy's Splinter Cell (2003), Postal 2 (2003), Chaser (2003), Command & Conquer: Generals (2003), GTA: Vice City (2003), Prince of Persia: The Sands of Time (2003), Call of Duty (2003), Hitman: Contracts (2004), Thief: Deadly Shadows (2004), BloodRayne 1-2 (2002, 2004), The Chronicles of Riddick: Escape from Butcher Bay (2004), Far Cry (2004), Half-life 2 (2004), Doom 3 (2004).

2005-2013: Call of Duty 2 (2005), Quake 4 (2005), Area 51 (2005), F.E.A.R 1-2 с дополнениями (2005-2009), Call of Cthulhu: Dark Corners of the Earth (2006), Splinter Cell: Double Agent (2006), Condemned: Criminal Origins (2006), Prey (2006), Warhammer 40 000: Dawn of War (2006), SiN Episodes: Emergence (2006), Rainbow Six: Vegas 1-2 (2006, 2008), Clive Barker's Jericho (2007), Gears of War (2007), Stranglehold (2007), Bioshock (2007), Call of Duty 4 (2007), S.T.A.L.K.E.R: Тень Чернобыля (2007), Lost Planet: Extreme Condition (2007), Resident evil 4, 5 (2007, 2009), Fallout 3 (2008), Far Cry 2 (2008), Dead Space 1-3 (2008-2013), Mass Effect 1-3 (2008-2012), Batman Arkham Asylum (2009), Dragon Age Origins (2009), Wolfenstein (2009), Borderlands (2009), Assassin’s Creed 2 (2010), Sid Meier’s Civilization V (2010), Mount & Blade Warband (2010), The Elder Scrolls V: Skyrim (2011), Portal 2 (2011), Saints Row The Third (2011), Batman: Arkham City (2011), Bioshock infinite (2013).

Из более новых можно попробовать 2D: Broforce (2015), Guns gore and Cannoli (2015), Prison Architect (2015) и 3D: Mad Max (2015), MGS V (2015) и Void bastards (2019).

Трилогию STALKER

как вы на таком хламе вообще сидите?

В поиск Intel Xeon и GTX 960.