1st-person DOS games you can play online, free in your browser. 197 of the 345 titles here start instantly, with nothing to install.
They span 1982 to 2023 and lean towards action, role-playing (RPG) and simulation.
A-10 Tank Killer1989 · Simulation
Abyss of Pandemonium1998 · Add-on
Aces of the Pacific1992 · Simulation
Aces Over Europe1993 · SimulationAftershock for Quake1996 · Add-on
Airline Simulator 21999 · Simulation
Albion1996 · Role-playing (RPG)
Alien Cabal1997 · Action
Alien Trilogy1996 · Action
Amberstar1992 · Role-playing (RPG)
Amulets & Armor1997 · Role-playing (RPG)
Arctic Baron (Transarctica)1993 · Strategy / tactics
Battlecruiser 3000AD1996 · Simulation
Betrayal at Krondor1993 · Role-playing (RPG)
Beyond Wolfenstein 2: Special Edition v3.02001 · Action
Big Red Racing1996 · Racing / Driving
Black Sect1993 · Adventure
Blake Stone: Aliens of Gold1993 · Action
Blake Stone: Planet Strike1994 · Action
Blood1997 · Action5.0
Captain Blood1988 · Adventure
Carmageddon: Max Pack1998 · Compilation5.0
Castle of Dr. Brain1991 · Adventure
Chasm: The Rift1997 · Action
Chex Quest 21996 · Action
Cobra Mission1992 · Role-playing (RPG)
Comanche 31997 · Simulation
Comanche CD1994 · Simulation
Combat Air Patrol1995 · Simulation
Conspiracy (Enhanced CD)1994 · Adventure
Cover Girl Strip Poker1991 · Gambling
Cryptic Passage for Blood1997 · Action
Cyberia1994 · Action
Cyberia 2: Resurrection1995 · Action
Death Gate1994 · Adventure3.0
Descent1995 · Action
Descent II1996 · Action
Descent: Anniversary Edition1996 · Action
Destruction Derby1995 · Action
Dizzy Dice1990 · Gambling
DOOM1993 · Action5.0
DOOM 42019 · Action
DOOM II: Hell on Earth1994 · Action5.0
Dragon Lore II: The Heart of the Dragon Man1996 · Adventure
Dragon Lore: The Legend Begins1994 · Adventure
Duke it out in D.C.1997 · Add-on
Duke Nukem 3D1996 · Action
Duke Nukem 3D: Atomic Edition1996 · Action
Duke Nukem's Penthouse Paradise1997 · Add-on
Duke: Nuclear Winter1997 · Add-on
Duke!ZONE II1997 · Action
Dune1992 · Adventure
Dungeon Keeper1997 · Strategy / tactics
Dungeon Master1992 · Role-playing (RPG)
Dungeon Master II: The Legend of Skullkeep1995 · Role-playing (RPG)5.0
Dylan Dog: Through the Looking Glass1993 · Adventure
Elvira: Mistress of the Dark1990 · Action
Extreme Rise of the Triad1995 · Action
Eye of the Beholder II: The Legend of Darkmoon1991 · Role-playing (RPG)
F-22 Lightning II1996 · Simulation5.0