eqemulator is a web site for players and hosts of privately owned/managed eq servers. it's EQ for free.
eqemulator was out of date for months and did not work with most versions of EQ - until just recently the devs and programmers at eqemu created a new version that is compatible with EQ Titanium.
That means you can buy EQ Titanium (DO NOT PATCH IT EVER!), Install it, and play EQ on a privately hosted server for free. There are 4 types of servers:
True/Classic EQ (no cheats, maybe increased xp)
Mild cheats and buffs (like the test server)
big cheats (like free gear or levels)
Some even have full GM-like commands (do anything/zone anywhere/kill anything).
I remember playing on one server where my level 60 monk solo'd Cazic Thule through insane gear and clicky potions. It's great to explore content that some players would never see.