Dark room is pretty fun, Candybox is ridiculously addictive…But what I came here for was Kingdom of Loathing. Its a good game if you stay out of the chat rooms. The developers occasionally update the game so it stays interesting.
Most of the mods are decent but there are a few that just ruin the chat. Bullying is common from a couple of the mods. A few of us figured out that they even go so far as to create other accounts so they can troll and bully players without having people know its a mod who should know better. Its pathetic really and it seems the other mods turn a blind eye to it. Even worse is that these mods tend to like to strut about in the newbie channel where they feel most important. Way to make a great impression guys.
A bit back Kingdom of loathing was sending emails to players that were inactive asking them to come back - I can say more than a few of us left because chat was so unpleasant. I went back a few months ago and while the game is still fun, chat remains a sad, pathetic wasteland of bullying mods.
So yeah, TLDR:; play Kingdom of Loathing - it’s fun - but stay out of chat.