I Made Iodine From Kelp?! | Atomcraft #17 @Steejo
I Made Iodine From Kelp?! | Atomcraft #17  @Steejo
Uploaded August 2026 | Updated September 2026, 2 weeks ago
We’re back in Atomcraft, and Episode 17 starts with one of the stranger chemistry chains so far: making iodine from kelp.

After growing enough kelp in seawater, I process it into potassium iodide, dissolve that in water and react it with chlorine gas to produce the iodine I need. That unlocks health regeneration and leads into even more upgrades.

One of those upgrades gives me boots that let me walk through walls, which completely changes how easy it is to move around underground. I also work through the chemistry needed for a new lithium-ion battery and start improving my electricity recharge rate so I can keep the laser running for much longer.

That sends me through lithium carbonate, lithium cobalt oxide, manganese chemistry, antimony and selenium before the recharge upgrades start paying off.

And, naturally, the cow collection continues until the methane farm is completely packed again.

So this episode has kelp chemistry, iodine, wall-phasing boots, battery upgrades, a stronger laser and an unreasonable number of cows.

Let me know which upgrade you’d want most: walking through walls, health regeneration or the faster laser recharge?

Don’t forget to like and subscribe for more Atomcraft!

#Atomcraft #Gaming #Chemistry #Automation #SandboxGames
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I Made Iodine From Kelp?! | Atomcraft #17

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