Most of the net games use IPX protocol to communicate between several
   game computers on the network. Microsoft's "IPX/SPX Compatible"
   protocol works with these games.
   
   First, install your network card and load a Win95 driver for it. Then
   add IPX/SPX Protocol. If all you're doing is playing network games you
   can remove all other network components, such as Clients. If
   necessary, read up on How to set up a network card.
   
   Then run the game in its DOS session and set it up to use the network.
   It should find the hooks needed to use IPX and play normally, as
   though you loaded an IPX.COM driver. If not, complain to the game
   maker.
   
   A handful of old network games use NetBIOS to work with more networks.
   In this case you can use any network protocol, such as NetBEUI, to
   link the machines together. All the real mode NetBIOS hooks are there
   as well. To use both IPX and NetBIOS games, use the IPX/SPX protocol
   and turn on "I want to run NetBIOS over IPX" in IPX/SPX Properties.
   
   Modem games work by using the COM devices from DOS, so you don't need
   to use Dial-up Networking just to play a game over the modem. If,
   however, the game doesn't support modeming but DOES support IPX
   networking, you could try using IPX over the dial-up adapter, and rig
   one computer as a dial-up server. This is a bit extreme, as IPX over
   PPP is quite slow.