Geysers and Vents Tier List! (ONI: Spaced Out!) 

Chlorine got an additional use now that the Hot Shots update introduced Geotuners. Bleach Stone allows you to increase the temp and flow of water geysers/vents, and Chlorine + Squeaky Pufts is pretty much the only renewable source.

Speaking if radiation killing germs, when starting again after this latest update I moved all my shine bug eggs into a water-locked open room above my dupes early bathroom and never had to deal with infected polluted dirt of water. They just keep producing eggs to replenish themselves.

Interesting to hear your thoughts - I very much mostly agree with your picks. Personally I don't value the cool water vents as much as others because I never bother using them for cooling, preferring a standard ST/AT set-up. Also imo both oxygen vents are just D tier, 100g/s is so useless it's basically not worth opening. For the metal volcanoes, I think tungsten is the best as it makes unlimited thermium, and I would value iron next to make unlimited steel (although I understand your logic that these are already both on other planetoids). Of the rest I think Aluminium is better, and I wouldn't pick gold over the rest.

I adore volcanos, i always make a geothermal power setup at have that as my steam room, when the room gets too cold, magma. Its awesome. When i first started i struggled to make enough heat to keep steam rooms hot enough to boil my polluted water and salt.

As a fairly unskilled player, I found the easiest way of dealing with carbon dioxide was to pump it off into space.

Now that geotuners exist, you can use it to increase the output of a salt geyser, use a bleachstone hopper to use a small amount of gold and the salt for bleechstone for a feed back loop. With the bonus heat it spits out raw salt and 195 degree steam, perfect for turbines. It ends up being more worth while but higher set up cost than the pure play water geyser

I tend to define “early game” as using any technologies before the Rad Bolt Materials Research Terminal. Once you gain some plastic and unlock the steam turbine, then you hit the mid game where you can control/shift temperature more readily. As a note on this teir list, I would say ALL the volcanos are “N/A” for the early game because you can not tame anything before acquiring plastic/steam turbine. As for the gold volcano, once I crack volcano taming, I love to make all of my airflow and mesh tiles out of refined gold so the dupes stay safe heat wise and tolerate the decor 😅 Great explanation of your list 😎👍

Coming in a year late, I think the sulfur geyser was done dirty. The sweetle grubgrub loop is insane! At lease A tier for me even S, with a metered conveyor cooling it is actually pretty easy.

Remind me of how many of my guys got hurt and or die by the so called COOLED steam vent

Notes: Leaky oil fissure is best used for a tiny bit of starting oil or for the final 0.0001 g/s that 3 oil wells (3.333 g/s each) will need for 1 KG/s. potentially more if you have more oil wells Niobium volcano is really hard to tame, but it can be done. it is mainly for making sure you can have some thermium if you lose all the base niobium to, like, the bottom of the magma biome and are not going to put up with getting it back you can run a bit of pufts (might be preferred wild ranched) in the infectious pO2 vent Volcanoes can be used for igneous rock, power, petroleum (and maybe even sour gas?) boilers You don't need to increase the temperature of a regular steam vent to use turbines with the output the cold version of the Nat Gas vent exists, but I don't think it's implemented, so it was ok to skip it Cool salt slush geyser. you forgot about it does oil well count?

There are ways to make infinite lime and infinite carbon so an iron volcano means infinite iron which means infinite steel. That's S Tier all day.

NatGas is for food production then power, not easy to balance food/power production as there is not really a consistent way to allocate resources, so I would go for food production early game, happy dupes is better dupes. Hydrogen is for rocket fuel.

Interesting video. I think I agree that on Rime a polluted water vent is better for plants than for oxygen and hydrogen production. At least early. But, I disagree about using a polluted water vent for electrolyzers in other cases. I've played make full rodriguezs with counterflow heat exchangers (snaking radiant copper pipes over the gas pumps, the electrolyzers and the hydrogen pump). The temperature of the gas coming out of the pumps? With the input fluid still at 86 F, I see in a cycle 203 save on a base game Terra map with 16 duplicants, 89.8 F for the left oxygen line, 94.7 F for the central oxygen line, 89.9 F for the right oxygen line, and 98.2 for the hydrogen gas. I spot some temperatures above that along my central ladder area, and the rodriguez has no insulation and is near a chlorine vent. So, it seems that the whole system is even slightly cooling things! And it has a fair amount of wiggle room to keep things at a reasonable temperature for growing wild thimble reed plants in my central ladder chamber. Plants? Sounds like polluted water better comes from an algae distiller to me at least for some of them (not sure about if slimelung would transfer to pincha peppernuts?) when you have the slime would be better. But, the polluted water vent is very useful either way, no matter which is better. Edit: I will also argue that a carbon dioxide geyser and carbon dioxide vent has a hidden use. As I think you recall, if you want to get rid of carbon dioxide, the conventional way involves a little system involving a carbon skimmer and a water sieve in some sort of loop. The water sieve outputs polluted dirt. But polluted dirt offgases polluted oxygen (or could get composted). Thus, a carbon dioxde geyser and carbon dioxide vent has potential use for more oxygen or more dirt. Of course, this assumes that one has filtration medium to make use of that gas.

Polluted water, iron and gold volcanos are by far the best ones. Followed by tungsten and niobium.

in my experience, you need at least 2 chlorine vents to sustain a single squeaky puft

I mostly agree for early game except with cool steam vents, usually I ignore them as they give way too little water and are useless for power, but I do combine them wirh other water geysers if I do not intend to use their cooling power and just oxygen production

Cool Steam Vent tamer energy-positive is already working and output 2.4Kg 95C water. P.S. Most expensive material: just 400Kg steel.

Omg i didn't know u made youtube vids. I saw you in Maxx's stream a bunch.

overall, i liked this, however, i disagree in some heavy areas. the chlorine vent is not D level. chlorine is used in 4 separate fields 1. to grow salt vines for rust deoxidizer oxygen in areas with rust biomes. one vent completely cancels out the consumption of salt. 2. to support squeaky pufts. one vent supports 2 squeaky pufts, which one consumes 30kg per cycle and deposits bleach stone with 95% efficiency, or 28.5kg, which is enough for 57 waterweed plants, or 114 waterweed from both pufts combined. the puft prince can support up to 6 plants 3. inflating large areas of maps for drecko ranching, or balm lily seed farms for pacu. 4. liquid chlorine for gas grass growing. magma volcanoes: i would place on equal levels with water. petroleum boiling and sour gas are musts for most colonies, due to a base colony being able to use more than 10,000 kw of power, much of which comes from aquatuner cooling of those steam vents and geysers. the water is important, but it's use can be reduced quite a bit with hatch ranching vs plants, but you still need automation, which takes power to utilize. hydrogen vents: due to the heat they produce, you can surround them with metal tiles, and build a steam room with steam turbines. as long as you have tempshift plates with gas pumps overlapping them, you can get the extra power from the heat, which i haven't tested, but would not be surprised if they produce more power than the natgas generators, when fully used.

just curious: is there a problem with using regular hatches and feeding them sand? cuz apparently you can farm out salt and convert it into sand.

Man, they REALLY need to buff oxygen vents. They're soooo bad.

Gold is a great geyser but if you can tame the niobium properly.. same decor bonus and +500 c ? i forget how much it is.. basically the best geyser ever. If properly tamed you can get tons and tons so quickly.

honestly, i just launch my first rocket by having 5 duplicant breating

IMO having almost all metal volcano on the same tier is 'almost' pointless. Cobalt needs to go down a tier as it has no bonuses, unlike all the other metals coming from volcanoes. Having major & minor volcanoes on the same tier is also not very helpful. In the few number of games I've used volcanoes, I've only made petroleum boilers. I didn't need much heat, so I would rather deal with a minor volcano. That means I would put the major volcano down a tier. I personally have only used a tiny bit of chlorine to disinfect. So I find a chlorine vent to be almost useless. The times I do have a chlorine vent, I box it up and pump the output to a canister filter. That makes dealing with chlorine a little bit easier & I can pump all the rest of it into space without concern. I would add an F tier and put it there. I personally have only had leaky oil fissures span in annoying places. Too much work to cool and/or pull the resources out of them. If you are going to deal with crude oil, you probably have 3+ oil reservoirs already. That would fill a pipe and you would be hard pressed to deal with more crude oil than that. I would put it in D. Natural gas vents are tough. I would agree having 1 it worth an A, but they move higher if you get more of them. I would say 3+ natural gas vents would go into S. The infrastructure is the same with 1 or 3, and 3 will give you power coming out of your ears. Plus you can easily burn off the gas from petroleum manufacture before you move into drecko ranching or a petroleum boiler. Where the niobium volcano spawns makes it useless. You could tame it, but the effort would be gigantic. All you need to do on that asteroid is dig down, collect a shovel full of niobium, and never come back. I would give it an F. The tungsten volcano isn't necessary. Nobody needs that much tungsten. Nobody needs that much thermium. With that being said, if it spawns in a location that is easy to get to, and you are already setting up some production there, it isn't hard to tame it. It is nice to have altogether too much thermium. I would give it a C. Not necessary, but oh so wonderful.

Where's your bag matt?

Good idea but I feel it's too slow

4:00 And you're going to get 95C oxygen

have you noticed the "late game" things really aren't that impressive. I can do everything using gold, iron, steel and aluminum. Everything can be done. From sour gas boilers to melting regolith. They really need to make "late game metals" feel much more rewarding of an experience. As for now it's only used for nothing really. Tungsten wires = tamed niobium volcano.

this list makes no sence, in ONi you are dependent on youre infinite vents and geysers you really cant put a tierlist on them... i only agree that the carbon and oxygen ones... kinda useless, much better ways off geting the resorce off course you can go on rocktes and farm the clusters butt thats more like endgame

Paddy Pimblet looks terrible....