Before xtrek and eventually netrek, there was hunt:
https://techtinkering.com/2009/08/11/my-top-10-classic-text-...
you might think that games back then were slow but this one was fast paced mayhem.
using the vi commands was perfect.
Btw the game hunt with destructable regrowing mazes is still being distributed in the bsd-games package today.
Empire was responsible for a lot of 5th year seniors back in the 80.