This means the iron golem can spawn inside 1-deep water or inside blocks like slabs, fences, and carpets (if other checks pass). Adjacent blocks are irrelevant, so golems can spawn partially inside adjacent solid blocks. ... Iron golems also spawn in villages having at least 20 beds and 10 villagers.
What can iron golems not spawn on?
Iron golems don't spawn in lava, on bottom half slabs, on pressure plates, transparent blocks(They can on those covered with water!), on magma blocks, and on blocks with wierd hitboxes (Lantern...) only plugging the offending spots with solid blocks will stop the spawning.
How do you stop iron golems from spawning outside your farm?
2 Answers
- Fill the entire volume of Golem spawning (which is 16x16x6 around village center) with solid block floors 3 blocks of air apart. You can also use walls 1 meter apart, but floors are probably a bit prettier :-)
- You can leave the bottommost floor 4 levels below level of your doors, and keep air up from there.
