Abandonware DOS title

Games involving some sort of trading practice

If buying and selling goods is your thing, give these games a try. Every one of them involve trading in some form: buying and selling goods and moving them by sea (Ports of Call), stock exchange (Acquire, Black Monday), smuggling items in deep space (Elite, Frontier).
oil-imperium-03

Oil Imperium

DOS1989 reLINE Software
patrician1-04

Patrician

DOS1992protected ASCARON Entertainment
patrician2-01

Patrician 2: Quest for Power

Windows XP/98/952000protected ASCARON Entertainment
piratesg_006

Pirates! Gold

DOSWindows 3.xMac OS1993protectedremakedemo MicroProse Software
Pirates! Gold is an open world game designed by Paul Murphy, developed and released by MicroProse Software in 1993 for DOS, Windows 3.x, Mac and also Sega Genesis and Amiga CD32. Pirates! Gold is a remake of the game Pirates, created by Sid Meier in 1987. Pirates! Gold gameplay is a unique mix of action, strategy, pirate life simulation, ...
port-royale-1-01

Port Royale

Windows XP/98/952002protected ASCARON Entertainment
portsofcall-splash

Ports of Call

DOS1989 International Software Development
protostar-07

Protostar: War on the Frontier

DOS1993 Tsunami Media
rags-to-riches-02

Rags to Riches

DOS1993 Interplay Productions
railroadtycoon1-6

Railroad Tycoon

DOSMac OS1990freeware MicroProse Software
railroad-tycoon-deluxe-07

Railroad Tycoon Deluxe

DOS1993 MicroProse Software
seven-cities-of-gold-splash

Seven Cities of Gold (Commemorative Edition)

DOS1993protected Ozark Softscape
pirates-2

Sid Meier's Pirates!

DOS1987protected MicroProse Software
spacerogue-2

Space Rogue

DOS1989 Origin Systems
Space Rogue is a science fiction RPG developed by Richard Garriott's Origin and desined by Paul Neurath. Space Rogue combines a 3D space simulation with a top down view RPG gameplay. As a space pilot you can hunt bounties, buy and sell goods, land on starbases or outposts and talk to NPCs, do quests, etc.
spellcraft-aspects-01

Spellcraft: Aspects of Valor

DOS1992 Ybarra Productions
taipan-for-windows-01

Taipan for Windows

Windows XP/98/952002freeware
traders-02

Traders

DOS1992 Linel
uncharted-waters-splash

Uncharted Waters

DOS1990 KOEI
uncharted-waters-2-05

Uncharted Waters 2: New Horizons

DOS1995 KOEI
Uncharted Waters 2: New Horizons is an abandoned simulation game, sequel of Uncharted Waters, developed and released by KOEI in 1995. The Uncharted Waters series is set in the Age of Discovery and gives the player the freedom to set sail with their ship and go wherever you want exploring, fighting, trading, privateering, etc.
privateer-5

Wing Commander: Privateer

Windows XP/98/95DOSMac OS1993protected Origin Systems
xiphos-02

Xiphos

DOS1990
yuppisrevenge-4

Yuppi's Revenge

DOS1988 Ariolasoft
zeppelin-giants-01

Zeppelin: Giants of the Sky

DOS1995 Ikarion Software