Abandonware DOS title

Games featuring co-op multiplayer mode

Co-op (which stands for co-operative) multiplayer mode allow more than one player to play together to achieve common goals.
wwf-in-your-house-01

WWF in Your House

DOS19964.1/5 Sculptured Software
wrestlemania-1

WWF Wrestlemania

DOS19924/5 Twilight
xerix-2-01

Xerix II: The Caverns of Mars

DOS19943/5 Twilight
zork-grand-inquisitor-05

Zork: Grand Inquisitor

Windows XP/98/95Mac OS1997protected3.8/5 Activision
zyll-1

Zyll

DOS19843.9/5 IBM