diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryWorkerBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryWorkerBlockEntity.kt
index 76b08ebb7..99bb0d976 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryWorkerBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/MatteryWorkerBlockEntity.kt
@@ -1,7 +1,9 @@
 package ru.dbotthepony.mc.otm.block.entity
 
+import com.google.common.collect.ImmutableList
 import net.minecraft.core.BlockPos
 import net.minecraft.nbt.CompoundTag
+import net.minecraft.nbt.ListTag
 import net.minecraft.network.chat.Component
 import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.TooltipFlag
@@ -12,12 +14,14 @@ import net.minecraft.world.level.block.state.BlockState
 import ru.dbotthepony.mc.otm.capability.energy.IMatteryEnergyStorage
 import ru.dbotthepony.mc.otm.capability.energy.WorkerEnergyStorage
 import ru.dbotthepony.mc.otm.capability.matteryEnergy
+import ru.dbotthepony.mc.otm.core.immutableList
 import ru.dbotthepony.mc.otm.core.math.Decimal
+import ru.dbotthepony.mc.otm.core.nbt.getCompoundList
 import ru.dbotthepony.mc.otm.core.nbt.map
 import ru.dbotthepony.mc.otm.core.nbt.set
 
 /**
- * Simple machine, which can work on only one job at time.
+ * Simple machine, which can work on only one job type.
  *
  * From technical point, this is a specialized use case of [MachineJobEventLoop].
  */
@@ -25,32 +29,35 @@ abstract class MatteryWorkerBlockEntity<JobType : IMachineJob>(
 	type: BlockEntityType<*>,
 	blockPos: BlockPos,
 	blockState: BlockState,
-	val jobDeserializer: (tag: CompoundTag) -> JobType?
+	val jobDeserializer: (tag: CompoundTag) -> JobType?,
+	maxJobs: Int = 1
 ) : MatteryPoweredBlockEntity(type, blockPos, blockState) {
-	val jobEventLoop = object : MachineJobEventLoop<JobType>() {
-		override val energy: IMatteryEnergyStorage?
-			get() = matteryEnergy
-		override val isBlockedByRedstone: Boolean
-			get() = redstoneControl.isBlockedByRedstone
+	val jobEventLoops: ImmutableList<MachineJobEventLoop<JobType>> = immutableList(maxJobs) {
+		object : MachineJobEventLoop<JobType>() {
+			override val energy: IMatteryEnergyStorage?
+				get() = matteryEnergy
+			override val isBlockedByRedstone: Boolean
+				get() = redstoneControl.isBlockedByRedstone
 
-		override fun deserializeJob(nbt: CompoundTag): JobType? {
-			return jobDeserializer.invoke(nbt)
-		}
+			override fun deserializeJob(nbt: CompoundTag): JobType? {
+				return jobDeserializer.invoke(nbt)
+			}
 
-		override fun onJobFinish(job: JobType): JobStatus {
-			return this@MatteryWorkerBlockEntity.onJobFinish(job)
-		}
+			override fun onJobFinish(job: JobType): JobStatus {
+				return this@MatteryWorkerBlockEntity.onJobFinish(job)
+			}
 
-		override fun computeNextJob(): JobContainer<JobType> {
-			return this@MatteryWorkerBlockEntity.computeNextJob()
-		}
+			override fun computeNextJob(): JobContainer<JobType> {
+				return this@MatteryWorkerBlockEntity.computeNextJob()
+			}
 
-		override fun jobUpdated(new: JobType?, old: JobType?) {
-			this@MatteryWorkerBlockEntity.jobUpdated(new, old)
-		}
+			override fun jobUpdated(new: JobType?, old: JobType?) {
+				this@MatteryWorkerBlockEntity.jobUpdated(new, old)
+			}
 
-		override fun onWorkTick(requiredPower: Decimal, extractedPower: Decimal, ticksAdvanced: Double, job: JobType): JobStatus {
-			return this@MatteryWorkerBlockEntity.onWorkTick(requiredPower, extractedPower, ticksAdvanced, job)
+			override fun onWorkTick(requiredPower: Decimal, extractedPower: Decimal, ticksAdvanced: Double, job: JobType): JobStatus {
+				return this@MatteryWorkerBlockEntity.onWorkTick(requiredPower, extractedPower, ticksAdvanced, job)
+			}
 		}
 	}
 
@@ -64,53 +71,68 @@ abstract class MatteryWorkerBlockEntity<JobType : IMachineJob>(
 
 	override fun saveShared(nbt: CompoundTag) {
 		super.saveShared(nbt)
-		nbt["JobLoop"] = jobEventLoop.serializeNBT()
+		nbt["jobs"] = ListTag().also {
+			for ((i, job) in jobEventLoops.withIndex()) {
+				it.add(job.serializeNBT().also {
+					it["_id"] = i
+				})
+			}
+		}
 	}
 
 	override fun load(nbt: CompoundTag) {
 		super.load(nbt)
-		nbt.map("JobLoop", jobEventLoop::deserializeNBT)
+
+		for (v in nbt.getCompoundList("jobs")) {
+			if ("_id" in v) {
+				val id = v.getInt("_id")
+
+				if (id in jobEventLoops.indices) {
+					jobEventLoops[id].deserializeNBT(v)
+				}
+			}
+		}
 	}
 
 	override fun setChanged() {
 		super.setChanged()
-		jobEventLoop.isIdling = false
+		jobEventLoops.forEach { it.isIdling = false }
 	}
 
 	override fun setChangedLight() {
 		super.setChangedLight()
-		jobEventLoop.isIdling = false
+		jobEventLoops.forEach { it.isIdling = false }
 	}
 
 	protected fun powerLevelUpdated() {
 		super.setChangedLight()
-		jobEventLoop.notify(MachineJobEventLoop.IdleReason.POWER)
+		jobEventLoops.forEach { it.notify(MachineJobEventLoop.IdleReason.POWER) }
 	}
 
 	protected fun itemContainerUpdated() {
 		super.setChanged()
-		jobEventLoop.notify(MachineJobEventLoop.IdleReason.ITEM)
+		jobEventLoops.forEach { it.notify(MachineJobEventLoop.IdleReason.ITEM) }
 	}
 
 	protected fun matterLevelUpdated() {
 		super.setChangedLight()
-		jobEventLoop.notify(MachineJobEventLoop.IdleReason.MATTER)
+		jobEventLoops.forEach { it.notify(MachineJobEventLoop.IdleReason.MATTER) }
 	}
 
 	override fun redstoneStatusUpdated(newBlocked: Boolean, oldBlocked: Boolean) {
 		super.redstoneStatusUpdated(newBlocked, oldBlocked)
-		jobEventLoop.isIdling = newBlocked
+		jobEventLoops.forEach { it.isIdling = newBlocked }
 	}
 
 	override fun tick() {
 		super.tick()
-		jobEventLoop.think()
+		jobEventLoops.forEach { it.think() }
 
-		if (jobEventLoop.errorTicksAnim > 20 && blockState.hasProperty(WorkerState.WORKER_STATE) && blockState.getValue(WorkerState.WORKER_STATE) != WorkerState.ERROR) {
-			level?.setBlock(blockPos, blockState.setValue(WorkerState.WORKER_STATE, WorkerState.ERROR), Block.UPDATE_CLIENTS)
-		} else if (jobEventLoop.workingTicksAnim > 20 && blockState.hasProperty(WorkerState.WORKER_STATE) && blockState.getValue(WorkerState.WORKER_STATE) != WorkerState.WORKING) {
+		if (jobEventLoops.any { it.workingTicksAnim > 20 } && blockState.hasProperty(WorkerState.WORKER_STATE) && blockState.getValue(WorkerState.WORKER_STATE) != WorkerState.WORKING) {
 			level?.setBlock(blockPos, blockState.setValue(WorkerState.WORKER_STATE, WorkerState.WORKING), Block.UPDATE_CLIENTS)
-		} else if (jobEventLoop.idleTicksAnim > 20 && blockState.hasProperty(WorkerState.WORKER_STATE) && blockState.getValue(WorkerState.WORKER_STATE) != WorkerState.IDLE) {
+		} else if (jobEventLoops.any { it.errorTicksAnim > 20 } && blockState.hasProperty(WorkerState.WORKER_STATE) && blockState.getValue(WorkerState.WORKER_STATE) != WorkerState.ERROR) {
+			level?.setBlock(blockPos, blockState.setValue(WorkerState.WORKER_STATE, WorkerState.ERROR), Block.UPDATE_CLIENTS)
+		} else if (jobEventLoops.all { it.idleTicksAnim > 20 } && blockState.hasProperty(WorkerState.WORKER_STATE) && blockState.getValue(WorkerState.WORKER_STATE) != WorkerState.IDLE) {
 			level?.setBlock(blockPos, blockState.setValue(WorkerState.WORKER_STATE, WorkerState.IDLE), Block.UPDATE_CLIENTS)
 		}
 	}