Keyword: modem, sorted by title, from A to Z

Games supporting modem play can be played by multiple players on PCs connected using... guess what?... a modem. Back in the day, being able to play via modem didn't involve Internet at all.

Games found: 127.

1942: The Pacific air war

DOS1994protected MicroProse Software 4
3-D Helicopter Simulator

DOS1987 Sierra On-Line 3.6
5th Fleet

DOS1994 3.9
688 Attack Sub

DOS1989 Electronic Arts 3.9
Alien Trilogy

DOS1996 Probe Entertainment 4
Alpha Centauri

Windows XP/98/951999protected Firaxis Games 3.9
Archon Ultra

DOS1994protected Free Fall Associates 3.8
Armor Alley

DOS1991 3.3
Army Men

Windows XP/98/951998 The 3DO Company 4.1
Atomic Bomberman

Windows XP/98/951997 Interplay Productions 4.1
Baldur's Gate

Windows XP/98/951998protected BioWare 4.2
Baldur's Gate 2: Shadows of Amn

Windows XP/98/952000protected BioWare 3.6
Battle Chess

DOS1988 Interplay Productions 4.1
Battle Chess 2: Chinese Chess

DOS1990 Interplay Productions 3.5
Battle Chess 4000

DOS1992protected Interplay Productions 3.7
Battle Isle 2200

DOS1994protected Blue Byte Software 3.8
Big Red Racing

DOS1995 The Big Red Software Company 3.7
Birthright: The Gorgon's Alliance

Windows XP/98/951996 Synergistic Software 4
Blood

DOS1997protected Monolith Productions 4
Car and Driver

DOS1992 Lerner Research 4
Cave Wars

DOS1996 4
Chasm: The Rift

DOS1997 Action Forms 3.8
Combat Chess

Windows XP/98/951997protected Minds Eye Productions 3.6
Command & Conquer

DOS1995freeware Westwood Studios 4
Command & Conquer: Red Alert

DOS1996freeware Westwood Studios 4.1
Command HQ

DOS1990 Ozark Softscape 3.9
Corridor 7: Alien Invasion

DOS1994 Capstone 3.8
Cultures

Windows XP/98/952000protected Funatics Software 3.9
Dark Legions

DOS1994protected Silicon Knights 3.8
Dark Reign 2

Windows XP/98/952000protected Pandemic Studios 4.1