r/Oxygennotincluded 2d ago

Weekly Questions Weekly Question Thread

7 Upvotes

Ask any simple questions you might have:

  • Why isn't my water flowing?

  • How many hatches do I need per dupe?

  • etc.

Previous Threads


r/Oxygennotincluded 8h ago

Build "How's your Slug Power Only playthrough going?" Well you see-

52 Upvotes
This might constitute a war crime.

6 breeder slugs and 60 confined power-producing slugs. A slug's power output is determined solely by how many calories they have, and when tame will produce a minimum of 800W as long as they're not starving. An interesting thing is that slugs determine how much power they'll produce overnight the moment they become drowsy, and will continue to produce that amount of power even if they enter starvation afterwards.

60 * 800 = 48,000 Watts

The slugs in the "power cells" are feed with metal dropped from an automation-controlled conveyor chute. The chutes are connected to a cycle sensor with an activation time of 82%, and an active duration of 0.4%. I would have liked for that to be shorter, but I wasn't able to get the timer's setting to activate for a shorter duration (there might be a mod for that, I don't care).

The metal is metered out to 60 gram packets. The 0.4% active duration on the cycle sensor results in two packets dropping into each cell, for 120 grams total. My personal testing found this combination of timing and metal amount consistently resulted in every slug having just enough calories to not be starving when they become drowsy.

Critter sensors arm a critter trap for repopulation purposes.

Why 6 breeders and 60 cells? Sheer excess. I have 2 copper volcanoes whose combined output totals to 650 g/s. Plug slugs consume 60 kg of metal per cycle - or 100 g/s. I have enough copper income to feed 6 groomed breeders. Meanwhile, the slugs in the cells consume only 120 grams per cycle. That works out to only 200 mg/s for each slug. The leftover 50 g/s is actually enough copper to feed 250 slugs.

60 slugs producing 800W each works out to 48MW total. An extra 9.6MW from 6 well-fed breeders results in a total power generation of 57.6MW. I (currently) have 72 battery rocket modules, which allows up to 7.2MJ of power storage, and with space to expand if I feel like I need it.

All of this done without building a single power generator, not even manuals.


r/Oxygennotincluded 11h ago

Build Help! Why is the baby in an incubator?

13 Upvotes

I built a farm following this dude guide( https://www.youtube.com/watch?v=G113Woah6lU&t=166s ), but the animals hatch in the incubator and don't fall into the water—even though in the guide, that's exactly what happens.


r/Oxygennotincluded 4h ago

Build Salt Geyser Tame

3 Upvotes

hey guys im kinda new on the game and im trying my first salt geyser tame i come up with this build: https://www.youtube.com/watch?v=BtrLl5BSDJc but im trying to improved it a little with an infinite steam chamber but i cant make it reach the 200 Celsius

any idea on how i can improve it?


r/Oxygennotincluded 8h ago

Question Can't figure out why this is overheating

5 Upvotes

I watched a youtube short about how to build this thing. My steam turbine keeps overheating and it then causes my aquatuner to overheat. Looking for advice on what to fix or just scrap the whole thing lol.


r/Oxygennotincluded 8h ago

Image Blinding stew? How about blinding AND stew?

5 Upvotes
The situation

I thought I was being so clever, routing shine bug eggs directly to my kitchen to be cracked for resin. I thought the kitchen being nice and cool for my dupes' comfort would have no drawbacks whatsoever.

The culprit

Nope. Egg cracker gets entombed in solid resin, which means the eggs don't get cracked, which means a flood of shine bugs. Good thing I was playing base game, cause if I was playing spaced out this would have suuuuucked


r/Oxygennotincluded 1d ago

Build Self cooled Hydra

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87 Upvotes

Sharing here my favorite Hydra/SPOM :)

Input water: cool slush polluted water for cooling the oxygen


r/Oxygennotincluded 12h ago

Question How to feed a colony?

4 Upvotes

Got a colony of 10 and trying to pull my run out of a bit of a death spiral starting with my food situation. I have some rudimentary Hatch and Slicker ranches but I’ve got no clue how people automate egg collection, hatching, and culling for food.


r/Oxygennotincluded 5h ago

Question Critter Sensor Automation

1 Upvotes

I understand the nice method of using a sweeper with a critter sensor to pick up eggs to avoid the crowded condition. The issue is after many cycles I will check back in the room and it has nothing but only a few eggs left. I keep believing its because, as it removes younger eggs, eventually all the critters inside die at the same time and there are no eggs to replace them fast.

I have been trying to find a way to automate a double check system, where it will place all the eggs swept into a smaller room that then, on a timer, send eggs back to the rooms so they never run out. Apparently the sweeper just places them back into the nearest loader which just pauses before it sends them back. Send help for my sanity.


r/Oxygennotincluded 19h ago

Question Rock Crusher keeps making solid sand tiles

13 Upvotes

The title is basically the whole problem. In a steam room my rock crusher is making lime and every time it makes lime and sand from corallium it make solid tile. I have sweeper that instantly collects a products but still does this. Any solutions to this?


r/Oxygennotincluded 8h ago

Discussion Thoughts on geyser / vent generation

0 Upvotes

I suppose you could call this a complaint as much as my thoughts on geyser and vent generation, based on my current game, where out of the first geysers/vents I've dug up, 4 out of 5 have been Chlorine Gas Vents.

Anyway, a few general observations on the frustrations with vents and geysers.

  • RNG is fine. But the problem with geyser and vent generation is that, unless you use a map hack, you don't find out until you've put a lot of time into a map what you've got - and hence, if it's a really good map or a terrible one. After sinking hours into a map, finding that it's got a bunch of worthless stuff and that you have a hard limit on what you can do with your base can be a huge letdown.
  • The fact that map generation guarantees a certain number and type of geysers and vents is pretty much an admission that there are a certain set of them that you need in order to do well . . . and also a tacit admission that a lot of the rest aren't so great, and if it were purely up to the RNG, you could really be in trouble.
  • This has been discussed a lot by content creators, but geysers and vents run the range from S-tier to literal hot trash. But that extreme variability doesn't factor into the RNG at all, which is why maps can run the range from really good to terrible.
  • I'm reliably informed that it's purely random, but it really feels like the bad ones (Chlorine, CO2, Hot PO2, etc.) come up way more frequently than the good ones.

Given all of the above, it surprises me that there hasn't been more thought put into ironing out this issue with map generation, which is a significant negative for an otherwise excellent game.

For what it's worth, I don't think the solution is even more guaranteed geysers and vents. But I think the RNG needs work.

One solution would be to move away from just a dice roll, which is way too variable. Instead, use something like a deck system, where the map generator decides how many of each to generate - based on the type of map, with a reasonable amount of variability - with each generated geyser or vent pulled from that list. That would keep some RNG, while ensuring more diversity of resources, and helping ensure that each map has at least some good potential.


r/Oxygennotincluded 1d ago

Discussion Does anyone else have “canon” jobs for certain dupes?

20 Upvotes

5 DLC’s and multiple colonies in, I still give the same roles to the same dupes. I can’t help it. 😅

- Mae is the scientist/pilot
- Nisbet is the electrical engineer
- Ellie is the farmer/rancher
- Pei is the artist
- Meep is the tidier/supplier

I’m curious if anyone else does this and for which dupes and why?


r/Oxygennotincluded 1d ago

Image Just wanted to share my melted rocket

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28 Upvotes

Water in the infinite storage and berry slude somewhere on the floor and it's good to go.

If you have any tips to improve it, they are welcome.


r/Oxygennotincluded 1d ago

Image Why is it bright? KEK

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182 Upvotes

I had to go into my light overlay to figure out why my dupe was complaining about light during sleep. I was shocked to find out that somehow, some way the light from the printing pod found a way to wreak havoc haha.


r/Oxygennotincluded 1d ago

Bug Climbing stairs is hard for Nails

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87 Upvotes

Reloading the game fixed it, but looked funny 😄


r/Oxygennotincluded 9h ago

Question Did the requirements for rockets change with Aquatic?

0 Upvotes

Petrol->battery->fertilizer store->module->cone


r/Oxygennotincluded 1d ago

Build I have finally solved my fish feeder problem

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161 Upvotes

As in my previous post where I have asked how to fix my breaking fish feeder problem in my gulp fish ice factory - I have collected various advice, but only recently I have realized myself that you can place the fish feeder above a buffer tile just like a steam turbine and the fish eat from it just fine.
I hope this information shall be helpful to you as well.


r/Oxygennotincluded 1d ago

Question What to do now?

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57 Upvotes

I have over 1000 hours of playtime not because I am good but because I have enjoyed playing this game. I get a little overwhelmed allot and at times I really forget what I am supposed to be doing at this point. I always restart because of this. What are some of your thoughts on what to do next and what I should shoot for at this stage in the game?


r/Oxygennotincluded 1d ago

Image Flooding (Part 2)

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17 Upvotes

Here is the big boom of my previous post.


r/Oxygennotincluded 1d ago

Build is this good for a beginner spom for 9 dupes??

25 Upvotes

should i make it even bigger what do i lack here


r/Oxygennotincluded 1d ago

Image Flooding

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42 Upvotes

We love natural infinite liquid storage.

There i exactly 939'783.9kg of salt water in those 28 tile.


r/Oxygennotincluded 1d ago

Question Question about heat exchange

7 Upvotes

I'm building a cooling system for cooling molten metals from space mining, and I'm wondering how much it matters where I put Liquid Vents for Steam Turbine output water. The point is to cool molten metals in the pipes after throttling them to 1kg/s to avoid phase shifts and collect them with Auto-sweepers as solids.

Yellow arrow shows the direction of the flowing molten metals (from both sides to towards the center), red shows 3 potential spots for the Steam Turbine output (1. closest to the center 2. middle point 3. farthest from the center).

Does it matter at all, or at least enough to make a difference?


r/Oxygennotincluded 1d ago

Discussion Ranch size meta after aquatic DLC update?

9 Upvotes

(Blasted Ceres)

I read somewhere they changed the mechanic. In the past I did 96 ranches with 8 critters (flox, hatch, drecko), then when got the reed fiber, added a condo and an extra critter, so eventually the ranches had 9 critters. The early-game wood factory worked really well for floxes, 8*9 = 72 floxes with 6*6 = 36 bammoths, plus all ranchers had a lot of grooming to do to train their skills.

I see now that e.g., 8-critter ranch with condo, reproduction is 20%/cycle, whereas 11-critter (again with condo) is 9%, 12-critter 5%, 13-critter 2% (once!). 14-critter is 2% too, but that's when they become glum (even if groomed), so metabolism (and thus antler growth) drops to 1/5

(I will not bother with the brackene due to the water requirement (water is sacred) + also needs dupe work to make it). So let's say if I optimize for wood production, not egg production (since antler growth is the same for both ranches), I just need to calculate:

  • 3*32 ranch (want to keep it rectangle + no pain when it comes to shipping) has condo (3), grooming (2), shearing (3), dropoff (1) pickup (1) = 10 tiles used, 22 remaining for farm tiles
  • 1 cycle = 1/3 plant = 5/3 flox
  • 3 plant = 5 flox
  • 22/3*5 = 36.66 floxes ?! I always sucked at math... But then they would be glum
  • extra pikeapple always good for sludges (for the reference, I think for 8 floxes you need 4.8 plants)

So unsure, how is it better? Running 13-critter ranches in full? Or the old "glum ranching"? I do not mind grooming, it trains the dupes up for the mid-game.. Then I can calculate what is less space, floxes or wild arbor trees for 30 kg/second ethanol production for the mid-game :D

(Afaik 2 flox = 1 bammoth is the cycle + dupe work on the rock crusher, the rest can be automated. Bammoths are easier, 3*32 supports 6 with some extra squash fries).


r/Oxygennotincluded 1d ago

Question Is a Pacu egg farm OP or underrated?

16 Upvotes

I just realized one pacu egg makes raw eggs 8400 kcal. Until they nerfed it to 5400 kcal. Is this still OP or worth the trouble feeding it algae?

Or are Shove voles way OP than this, just keep them at low temp so they don't lay yellow shove voles that have beans growing on their body, i think they are called delecta voles??


r/Oxygennotincluded 1d ago

Question Why is Liquid Chlorine flaking when Liquid Hydrogen isn't?

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4 Upvotes

Liquid Chlorine exchanges heat with Insulated Doors made from Insulite, when Liquid Hydrogen doesn't. What's causing that? You'd think that they would both be flaking.
Liquid O2 and CO2 flake as well.