I still love this game, even with those stunning EGA graphics and that pounding PC speaker support. It might not have had the military depth of some games, and it cheated, but it's still the best Civil War strategic level game out there (for now). I tried every other Civil War game that came out (Not that there were many of them), but every single one was destroyed by just pitiful AI or a horrible ruleset. I remember playing one where I sent Forrest on a :Raid" into the north. Seeing as how there wasn't a single unit detailed to stop him, the raid turned into a sweep up through Michigan and Wisconsin, then went over through Ohio and Pennsylvania before joining up with the Army of North Virginia. It was just bad.
The best feature of NGG was the option to randomize the generals. It's probably about the only reason it's still playable. It's just darn fun to have no clue how a general is. Will he move? Will he be any good? Then you finally find one who will move and wins a number of battles, transfer him to the East and Bam! He gets blindisded by a bunch of reinforcements or something in a big battle and you have to work to try and get his ranking back up. Fun fun.