Trench Squids are generally found floating up at the very top / just above the Trenches in each of the Golden Age Ruin grids. There are usually quite a lot of Trench Squids but you may not find a lot if someone is taming crabs (which require Squid Innards) or has recently farmed them for the gold/carapace.
Giant Squids are much more elusive, generally found in Desert biomes. When you kill a Giant Squid you will complete the Squid Killer Quest.
Aggressive; will creep up on you, then attack you. Aggro range is high.
Dark colored, about 2-3x bigger than average human. Some parts of it's body and tentacles are fluorescent which makes spotting one especially in the trenches a lot easier.
Not currently tameable.
Position yourself opposite its tentacles as the tentacles are its only means of attack. When the squid is low hp it will emit a swell of ink. Very easy to kill with a submarine even without ballista bolts.
Note: As of June, we have no in-game screenshot of this type of squid. Please help us out by uploading one and naming it "Squid.png".
* asterisk indicates region page has confirmed coordinates
- The Giant Squid have bioluminescence similarly to most deep sea creatures in real life.