Iron Farming Mechanics

Iron golems spawn when villagers are 'scared' by zombies. Core conditions (Java): 1) ≥3 villagers each with a bed. 2) Villagers slept within 20 min. 3) Villagers can see the zombie (line of sight). 4) Golem count below cap (1 per 10 villagers). When met, ~1 golem per 35 seconds, dropping 3-5 iron + 0-2 poppies.

Iron farm: how the pieces fit Iron Farm: What Actually Makes Golems Spawn Three scared villagers + a visible zombie + a platform = ~400 iron/hour. A · Villager pods (3 villagers, 3 beds, 3 workstations) bed job villager 1 bed job villager 2 bed job villager 3 Zombie (in a boat) must be VISIBLE and within 8 blocks B · Spawn platform — 17×17 centered on the pods Golem spawn platform (any solid block) Iron golem spawns here up to 6 blocks above / 6 below the villagers lava / kill hoppers → chest Checklist — any one of these breaks the farm ✓ 3 villagers that have each slept in a bed and linked to a workstation. ✓ Zombie visible within 8 blocks — panic is what triggers spawning, not the beds. ✓ No other golems alive: the farm is capped at one at a time per village. ✓ 5+ blocks of air around the platform so golems have room to spawn. Bedrock differs: villagers must sleep, and the zombie distance rules are stricter.
Iron farms run on villager panic, not on beds. Three villagers that have each claimed a bed and a workstation will try to summon a golem the moment they can see a zombie within 8 blocks. Build a platform with clearance above them, kill the golem the instant it spawns, and the cycle repeats — roughly 400 iron ingots an hour from a single village unit.

Standard Build

Classic design: 1) 5x5 platform 20 blocks up, 3 villagers + 3 beds. 2) Zombie chamber (name tag), piston+water for intermittent line of sight. 3) 7x7 spawn platform above/below, slabs on non-spawn areas. 4) Golems flushed by water into kill zone (lava+sign or fall). 5) Hoppers collect iron. Single unit: ~400-450 iron/hour.

Tip: Multi-unit is key for output: 3 villagers + 1 zombie per unit, 16+ blocks apart to avoid interference. 4 units satisfy most survival needs.

Troubleshooting

Not spawning iron? Check: villagers slept in 20 min (beds accessible); golem cap reached (clear excess golems in village); zombie in scare range; villagers can see zombie; ground slab coverage (prevent outside spawns).

Related guides： 1.21 Iron Farm Tutorial · Villager Breeder Guide · Redstone Basics
✓ Last verified on Minecraft 1.22 (2026-09-22) Minecraft mechanics change with every update — this guide is only guaranteed to work in the stated version.