Abandonware DOS title

Top-down perspective sorted by release date

Top down games were very popular in the 80s and the 90s, when graphic cards were not capable of supporting 3D, and even when 3D started to become popular, 2D games continued to be easier to develop, at least in the infancy of 3D gaming. 2D game offered the player a viewpoint that helped keeping things easily under control (think about top down party-based RPGs or hex-based strategy games).
alf-03

ALF: The First Adventure

DOS19873/5 Box Office
b24-combat-sim-04

B-24 Combat Simulator

DOS1987protected3.5/5 SSI Strategic Simulations Inc.
guerrilla-war-01

Guerrilla War

DOS19873.4/5 SNK Corporation
infiltrator-1-05

Infiltrator

DOS19874.3/5 Chris Gray Enterprises
into-the-eagles-nest-02

Into the Eagle's Nest

DOS19873.9/5 Pandora
kampfgruppe-05

Kampfgruppe

DOS1987protected3.6/5 SSI Strategic Simulations Inc.
lawnmover-1

Lawn Mower

DOS19873.8/5
lords-of-conquest-05

Lords of Conquest

DOS19873.6/5 Eon Software
mahjongg-nels-01

Mah Jongg Solitaire

DOS19874/5 Arcanum Computing
mech-brigade-03

Mech Brigade

DOS1987protected4.1/5 SSI Strategic Simulations Inc.
mission-mainframe-04

Mission: Mainframe

DOS19873.9/5
moebius-1

Moebius

DOS19873.4/5 Origin Systems
pattonvsrommel-1

Patton vs. Rommel

DOS19874/5 Electronic Arts
phantasie1-2

Phantasie 1

DOS1987protected3.8/5 SSI Strategic Simulations Inc.
phantasie_3-1

Phantasie 3: The Wrath of Nikademus

DOS19874.1/5 SSI Strategic Simulations Inc.
phm-pegasus-02

PHM Pegasus

DOS19873.3/5 LucasArts
18holeminiature-1

Poko Memorial: 18 Hole Miniature Golf

DOS19872.3/5 Gold Hill Software
roadwar2000-3

Roadwar 2000

DOS1987protected4/5 SSI Strategic Simulations Inc.
roadwareuropa-1

Roadwar Europa

DOS1987protected3.9/5 SSI Strategic Simulations Inc.
robotrascals-1

Robot Rascals

DOS19873.8/5 Ozark Softscape
Rockford_The_Arcade-05

Rockford: The Arcade Game

DOS1987protected4.1/5 Arcadia Systems
shard-of-spring-03

Shard of Spring

DOS1987protected4.1/5 SSI Strategic Simulations Inc.
pirates-2

Sid Meier's Pirates!

DOS1987protected4.1/5 MicroProse Software
sorcerer-lord-01

Sorcerer Lord

DOS19874/5 Personal Software Services
storm-1

Storm

DOS19872.5/5 Mastertronic
super-pinball-01

Super Pinball by Russco

DOS19874.5/5 Russco
ancient-art-of-war-at-sea-06

The Ancient Art of War at Sea

DOS19874.1/5 Evryware
civilwar-1

The Civil War

DOS19873.3/5 Avalon Hill
hunt-for-red-october-01

The Hunt for Red October

DOSMac OS19874.1/5 Oxford Digital Enterprises
ultima1-3

Ultima 1: The First Age of Darkness

DOS19874/5 Origin Systems
This is the first of the very popular RPG saga Ultima. The setting is the land of Sosaria, the enemy to defeat is Mondain. It's a classic cRPG. The wilderness and cities are represented from a top down perspective, while dungeons can be explored in a first person 3d view.