Being in a DOS game gave me, and I am sure many many others, of being in a D&D game (even with it not being based on the D&D rules).
I find this remark contradictory.
If you find that the game you are playing is not based on D&D rules, how can you feel like playing a D&D game?
The only way to get the feeling of playing a D&D game is to play a game that reproduces D&D rules as closely as possible.