Once Human tasks you with surviving a post-apocalyptic wasteland, and to do so without becoming zombie food, you’re going to need powerful weapons and plenty of ammo. That, and a good base to return home to, where all those resources you need to live are mostly produced on their own, or where Deviations grows them for you.
The good news is that when it comes to Acid — a resource needed to create gunpowder and therefore ammo — you can farm this at your base while you’re away. In most cases, though, you’ll have to farm it yourself. To help you out with that, here’s How to Farm Acid in Once Human and how to build your own Acid Farm at your base.
Table of Contents
ToggleHow to farm acid in Once Human
There are a few different ways to farm acid in Once Human, and some of them are much more efficient than others.
First things first: you can gather a lot of Acid by simply killing enemies at various Strongholds and points of interest around the map. Rodents tend to always drop Acid upon death, but you’ll find that other enemies, such as Charred Maniacs, will drop it sometimes as well. These enemies tend to drop between 1-4 Acid at a time.
If you plan on doing this, cook the Canned Deviant Chops on a stove whenever possible. Consuming them before farming a group of enemies will cause them to drop 50% more Acid!
Use your access cards and permits
Similarly, you can Farm Acid by using your Access Cards and Permits at production points around the map. If you have any Access Cards or Permits in your possession, you can visit the location indicated on them and use the card to produce Acid, Fuel, and Stardust.
However, while the items are being produced, you will have to defend yourself against several waves of enemies. The good news is that these enemies tend to drop more acid, so that’s great!
Refine Starchrom and kill enemy waves.
Similarly, if you have Eclipse Cortex or other items that can be refined into Starchrom, you can do so by using a Stardust Resonant Filter at your base. Once you begin production, several waves of enemies will descend upon your base and you can quickly kill them. Collect Acid while you wait for your Starchrom to be ready .
This is a less reliable way to farm Acid, as it relies on you refining Starchrom, but keep that in mind next time you refine the material!
Use water filters to farm acid while you are AFK
This next Acid farming method is not the best or fastest way to get Acid if you need it urgently in Once Human. That being said, if you want your base to passively farm Acid while you are AFK or offline it can.
To do this, you’ll need access to electrical installations, such as Solar Generators . These can be unlocked at Level 3 of the Logistics tab in the Memetics menu. Secondly, you’ll need access to Water Pumps (also from Level 3 of the Logistics tab), Beer Kegs (Level 4 of the Logistics tab), and an Osmosis Water Purifier (Level 5 of the Logistics tab).
Once you have the formulas for everything you need unlocked and the resources to build them, you must first place your base in a contaminated area of the map that is near water – our water pump will need to be in the water while our base remains on land. It is very important that the area is contaminated, or else your water pump will simply produce dirty water, instead of producing dirty water and acid.
Once you’ve found a building spot that you’re happy with, here’s what to do next. The method below was put together thanks to YouTuber, MM22 .
- Build your own solar panels
- Build your own water pump in the water
- Build your osmosis water purifier and brewing kegs together in your base
- Interact with the solar panels and press “X” to connect a wire – connect wires to both the water purifier and the water pump, using circuit modules to keep things tidy.
- Interact with the water pump and press ‘V’ to connect a pipe – connect the pipe to the water purifier
- Interact with the osmosis water purifier and reconnect a pipe, this time connecting the pipes to the brewing kegs.
Once everything is set up and everything is going where it should be, the dirty water will be sent from your water pump to your water purifier by osmosis, where it will be converted into pure water and impure acid.
If you then put the pure water and impure acid into a brewing barrel, they will slowly turn into fully functional, usable acid over time. It’s quite a bit of work for little benefit, but considering you need endless amounts of ammo, it’s nice to have something in your base that’s constantly producing the acid needed for gunpowder, even if it’s a bit slow.
What is acid used for in Once Human?
In Once Human, you need a lot of different resources, but ammo is one thing you can’t skimp on. And to craft ammo, you’ll need a lot of gunpowder, which is made from acid.
Acid is also used as a crafting component for many consumables, such as Utter Delight, and is also required for crafting storage batteries.
For more on Once Human, check out our Once Human codes for some freebies, how to complete the Lost in Madness quest for some nice loot, and where to get Starchrom