Abandonware DOS title

Abandonware games beginning with letter O sorted by release date

onemustfall2097-2

One Must Fall 2097

DOS1994freeware4.1/5 action
operation-bodycount-05

Operation Bodycount

DOS19944.2/5 shooter
operation-inner-space-03

Operation: Inner Space

Windows 3.x1994protecteddemo3.7/5 shooter
outpost-win-03

Outpost

Windows 3.x19943.9/5 simulation
overlord-05

Overlord

DOS19944.2/5 vehicle simulation
ocean-trader-03

Ocean Trader

DOS19954/5 simulation
once-upon-a-forest-03

Once Upon a Forest

DOS19953.9/5 adventure
opong-1

O-Pong

DOS19963.1/5 action
over-the-reich-07

Over the Reich

Windows XP/98/95Windows 3.x19963.9/5 strategy
omikron-00

Omikron: The Nomad Soul

Windows XP/98/951999protected3.9/5 action-adventure
outcast-03

Outcast

Windows XP/98/951999protected4.2/5 action-adventure
outbound-02

Outbound

Windows XP/98/952001freeware3.9/5 shooter