It's time to update the tower
Define ‘small groups’. I ran bottom to top with a random group of 5-10 players and it was a blast. More fun and challenging than a big zerg. Granted, we had a nice mix of professions and people that appeared know how to use them.
But yeah, fewer than 5 and/or less experienced players will probably have some problems, especially on 3rd floor.
Yesterday I was playing at my lunch break and joined a small group (4 of us, warrior, necro, ranger and me playing engineer) on the third floor and we had no problems reaching the top, even ressed a couple people that had died right before reaching the end..
wrapped up in some crazy ritualist hoo-ha from Cantha.
A real grab bag of ‘you can’t hurt me. They’re called Guardians.
From my experience the first two parts of the tower are okay to do on your own… The third part does require a bunch of people. I just played it with a party of four and we had no trouble whatsoever, we did a few nightmare chambers and we even beat the final boss without anybody going down (which finally got me the toxic krait mini).
In short, first two parts you can do alone, 3rd part is fine if you’re in a 4+ party.