I've liked and played in the past a lot of these text based role playing games, especially when I was on a shittier dial up connection or remote satellite connections. I liked Aardwolf and Realms of Despair the most. I've played the IRE games like Achaea and Aetolia way too much. While those two definitely have a great lore and many active players, I have always loathed IREs pay to win "credits" style.
Text based gaming is still alive and evolving. Just don't expect a AAA game and definitely not single player.