diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/AbstractEnormousPlacement.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/AbstractEnormousPlacement.kt
index b785e5408..661090f68 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/AbstractEnormousPlacement.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/worldgen/placement/AbstractEnormousPlacement.kt
@@ -3,10 +3,9 @@ package ru.dbotthepony.mc.otm.worldgen.placement
 import com.github.benmanes.caffeine.cache.Caffeine
 import com.github.benmanes.caffeine.cache.Scheduler
 import com.mojang.serialization.Codec
-import com.mojang.serialization.DataResult
 import com.mojang.serialization.MapCodec
 import com.mojang.serialization.codecs.RecordCodecBuilder
-import it.unimi.dsi.fastutil.HashCommon
+import it.unimi.dsi.fastutil.io.FastByteArrayOutputStream
 import net.minecraft.Util
 import net.minecraft.core.BlockPos
 import net.minecraft.core.SectionPos
@@ -14,10 +13,11 @@ import net.minecraft.util.RandomSource
 import net.minecraft.world.level.ChunkPos
 import net.minecraft.world.level.levelgen.placement.PlacementContext
 import net.minecraft.world.level.levelgen.placement.PlacementModifier
-import ru.dbotthepony.mc.otm.core.util.CMWCRandom
-import ru.dbotthepony.mc.otm.core.util.Xoshiro256SSRandom
-import ru.dbotthepony.mc.otm.data.codec.inRange
+import ru.dbotthepony.kommons.util.XXHash64
+import ru.dbotthepony.mc.otm.core.util.PCG32RandomSource
 import ru.dbotthepony.mc.otm.data.codec.minRange
+import ru.dbotthepony.mc.otm.worldgen.placement.AbstractEnormousPlacement.Parameters
+import java.io.DataOutputStream
 import java.time.Duration
 import java.util.stream.Stream
 import kotlin.math.sqrt
@@ -73,7 +73,18 @@ abstract class AbstractEnormousPlacement(val parameters: Parameters) : Placement
 		.build<ChunkPos, GeneratedChunk>()
 
 	private fun computeChunk(context: PlacementContext, pos: ChunkPos): GeneratedChunk {
-		val random = Xoshiro256SSRandom(context.level.seed, parameters.seedMix, pos.x.toLong(), pos.z.toLong())
+		val bytes = FastByteArrayOutputStream()
+		val dataStream = DataOutputStream(bytes)
+
+		dataStream.writeLong(context.level.seed)
+		dataStream.writeLong(parameters.seedMix)
+		dataStream.writeInt(pos.x)
+		dataStream.writeInt(pos.z)
+
+		val hash = XXHash64()
+		hash.update(bytes.array, 0, bytes.length)
+
+		val random = PCG32RandomSource(hash.digestAsLong())
 		var stream = Stream.of(BlockPos(pos.minBlockX, 0, pos.minBlockZ))
 		parameters.placementModifiers.forEach { modifier -> stream = stream.flatMap { modifier.getPositions(context, random, it).sequential() } }
 		return GeneratedChunk(stream.flatMap { getPositions(it, random) })