I saw that Valve was offering a cheap bundle of all the old X-COM games on Steam, and I decided to buy them, hoping they’d run in wine.  The Steam version was too new to show up on wine’s compatibility list, but it was less than $14, so I gambled.  Out of 5 games, 4 run in wine well enough to play, and 1 does nothing.  Here’s the insanity: The older DOS games were not actually ported to Windows, so the Steam version includes a Windows-based DOS emulator.  In my case, I’m running Linux and launching wine, which runs the Windows program, which launches the Windows-based DOS emulator, which runs the old DOS game.  And it works.  You’d sound like a zealot or a crazy person if you suggested that I try to run it that way on purpose, but this only serves to highlight how good wine is now.