Twice now I've had my character die, due to being invisible but enemies still seeing/hitting me. Both in a monster zoo too. I've been at really low HP so I chug an Invisible Potion to eat some stuff. The immediate turn after my character dies from being hit by the monster right in front of me. Its as if the potion shows the animation for being invisible but monsters still act as if you were not invisible. Or... does the invisible potion just add lots of dodge and I've been really unlucky/Unobservant?
Just tried to use invis potions to escape Dredmor and heal up, as well. Had no effect whatsoever, he happily kept on nuking me with spells.
Same thing happened to me, low on life, chugged a potion, got smacked by a melee enemy the next turn and died. I haven't tested to see if potions just aren't working or if it's only the turn you drink them, but either way I don't think it is intended.
from my experence on using ninja vanish vs monster zoo, it seams like monsters now can detect invisibles next to them.
Less easy to use you mean. Unless they fixed monsters perfectly following you after you turn invisible. So much for that panic button. I guess an aimed teleport is pretty much mandatory now.