Obstructium: plant air, then use the Reformer
If a Reformer will not remove Obstructium, check the atmosphere over the resource patch. In Stuck — Unable to use reformer, the player already had lasers and batteries, but the target remained outside breathable air. A reply recommends planting enough forest for atmosphere to reach every target hex. This is a sourced player explanation, not an official recipe or yield table.


In Cannot remove Obstructium, the player reports that the out-of-air warning appeared after reloading; expanding forest then provided enough reach. A green-looking area or nearby water alone was not the check they needed. Use the atmosphere overlay and the official guide’s water/compost/sapling expansion steps. Keep a separate save before testing reloads; no guaranteed recovery is claimed.
The checked sources do not establish a per-tile yield, exact consumption or unlock condition. For building-side checks use the Reformer notes on the building hub; for a broader progression outline use the walkthrough.
Sources
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