How did I die -green gas?

[cool skill]

I was swimming in a cave. Looking for gold and silver. Everything was fine. Suddenly there's green gas around me. And I'm dead. No warning. No information. No way to escape.

[kwong20287]

You have found the lost river. You died to brine, the green gas stuff. Brine can't damage you if you're in the prawn vehicle or Cyclops ( i think) otherwise don't go swimming in it. It mostly sticks to the floor so swim above it. plus its a part of the story, go find the cave again and mark it with a beacon.
or a gasopod lol (its probably that if you were near the less deep areas)

[SmooshieBanana]

Perhaps you were closer than you think (maybe through a cave wall) to a Gasopod, and it released gas. That or perhaps it was under attack and did so defensively. Either way, perhaps it burst and you died from a gas cloud through the cave wall. If you were deep, in the Lost River, that is a possibility too as it is a green gas as kwong20287 suggested.

[Raina]

Did you see glowing jellyfish looking plant things by chance?

[cool skill]

Originally posted by Raina:

Did you see glowing jellyfish looking plant things by chance?

No. I just saw glowing vines dangling at the cave entrance. As I was exiting the cave area to go up, it happened.

[GeminiEclipse]

Purple vines poison you.

[Raina]

Originally posted by sourcecode:

Originally posted by Raina:

Did you see glowing jellyfish looking plant things by chance?

No. I just saw glowing vines dangling at the cave entrance. As I was exiting the cave area to go up, it happened.

Yes those. Those kill you when you touch them and the effect is green.

[cool skill]

Originally posted by GeminiEclipse:

Purple vines poison you.

I was at a cave entrance. There were glowing vines. Like purple-ish and white I think.

[kwong20287]

http://subnautica.wikia.com/wiki/Drooping_Stingers

[believor in Prawn]

Originally posted by sourcecode:

Originally posted by GeminiEclipse:

Purple vines poison you.

I was at a cave entrance. There were glowing vines. Like purple-ish and white I think.

yeep droping stingers
scan everything
if you did it would tell you that they are plants that zap anything that touches them

[cool skill]

Originally posted by kwong20287:

http://subnautica.wikia.com/wiki/Drooping_Stingers

Oh OK those are it.

[Lio Braga]

Just died to this on my hardcore save. Was finally building a nice base and was searching for lead to build a few more Foundations. Didn't notice I touched on it. As far as I know, I didn't (but probably because it was above me). ♥♥♥♥♥♥♥♥.

[dreamrider]

3.5 year necro.

When you see something bright and new, like a never-before-seen drooping stinger, SCAN IT and read!

And OBTW, since you were somewhere that there were drooping stingers in a cave, the green gas probably WAS from gasopod nearby. That didn't help. It won't kill you instantly, but it degrades you pretty fast while you are in it. In combination with a drooping stinger sting, it would account for the instant gank.

[admiral1018]

The stingers can be safely removed, in most cases, using the propulsion cannon. This is especially helpful in the Degasi base in the Jellyshroom Caves, and I would say it's almost essential if visiting there on a hardcore run. They can also be destroyed using the habitat builder, and that's the only way to actually "kill them" in the game.

[dreamrider]

You mean using the "build collision" exploit?

Won't that go away when the big Perf Update happens? Does it work currently in experimental?

[admiral1018]

Yes, it still works in the latest build. Killing leviathans and destroying wrecks has been removed though.