If you have a fairly recent CPU in your PC, DOSBox should run the game very successfully, and will hopefully make your graphics incompatibilities moot.
You also don't need the CD if you can copy all of its contents over to your hard drive, because the game will install and run from that copy, so I would definitely recommend doing that first if you are having CD issues (and indeed even if you're not).
So try something like this:
1. Copy the TN CD contents to C:\games\tnova_cd
2. Install the latest version of DOSBox
3. Run DOSBox, and enter the following:
Code:
mount c c:\games
c:
cd tnova_cd
install
(Answer No to the question about uniVBE)
Note that you can put that mount command -- and anything else -- at the bottom of your dosbox.conf file to have it execute automatically each time you run DOSBox. I also have the following in my default config, to mount my CD-ROM drive:
Code:
mount d d:\ -t cdrom -usecd 0
4. The default digital sound card is probably fine, but I recommend changing to a "General MIDI" card for music. Modern sound hardware should be fine with that, and auto-configure should take care of it.
5. Install to c:\tnova (which in reality is c:\games\tnova)
6. Choose the minimal install size (because everything is already on the hard drive)
7. Cross your fingers and run the game. When you start up DOSBox it gives you some help on improving performance, so take note of those items if the game runs slow. You can usually get away with one or two skipped frames, for example.
Use ALT+ENTER to toggle between windowed and full-screen modes, as usual.
8. In future when you run DOSBox, you'll want to use:
Code:
mount c c:\games
c:
cd tnova
tn
9. If you use a GUI front-end for DOSBox you should be able to set up a config that will launch the game with all the settings you require, including any performance settings, so you don't need to do any typing to get going.
Without a front-end, your quick and dirty solution would be to have the default dosbox.conf autoexec section run the game for you, as well as mounting your drives. A cleaner solution would be to copy dosbox.conf into your tnova directory, make the changes there, and make a shortcut to dosbox.exe that runs it using the tnova config. The shortcut target would be something like:
Code:
"C:\Program Files\DOSBox-0.72\dosbox.exe" -fullscreen -conf "C:\games\tnova\dosbox.conf"
DOSBox will also let you rebind your keys, should you wish to do so.