diff --git a/assets/cubyz/biomes/autumn/forest.zig.zon b/assets/cubyz/biomes/autumn/forest.zig.zon
index 070340fe00..1ad7175d46 100644
--- a/assets/cubyz/biomes/autumn/forest.zig.zon
+++ b/assets/cubyz/biomes/autumn/forest.zig.zon
@@ -2,6 +2,9 @@
 	.properties = .{
 		.cold,
 	},
+	.tags = .{
+		.oak,
+	},
 	.chance = 0.5,
 	.minHeightLimit = 7,
 	.minHeight = 25,
diff --git a/assets/cubyz/biomes/autumn/mixed_forest.zig.zon b/assets/cubyz/biomes/autumn/mixed_forest.zig.zon
index f940ad3b88..e42d5da29f 100644
--- a/assets/cubyz/biomes/autumn/mixed_forest.zig.zon
+++ b/assets/cubyz/biomes/autumn/mixed_forest.zig.zon
@@ -2,6 +2,9 @@
 	.properties = .{
 		.cold,
 	},
+	.tags = .{
+		.oak,
+	},
 	.chance = 0.5,
 	.minHeightLimit = 7,
 	.minHeight = 30,
diff --git a/assets/cubyz/biomes/bush_lands.zig.zon b/assets/cubyz/biomes/bush_lands.zig.zon
index 03adf6ae72..574e98db55 100644
--- a/assets/cubyz/biomes/bush_lands.zig.zon
+++ b/assets/cubyz/biomes/bush_lands.zig.zon
@@ -2,6 +2,9 @@
 	.properties = .{
 		.hot,
 	},
+	.tags = .{
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.minHeight = 24,
 	.maxHeight = 60,
diff --git a/assets/cubyz/biomes/bush_mountains.zig.zon b/assets/cubyz/biomes/bush_mountains.zig.zon
index 490afc8728..df16b4490d 100644
--- a/assets/cubyz/biomes/bush_mountains.zig.zon
+++ b/assets/cubyz/biomes/bush_mountains.zig.zon
@@ -2,7 +2,10 @@
 	.properties = .{
 		.mountain,
 	},
-	.tags = .{.snowy},
+	.tags = .{
+		.snowy,
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.minHeight = 80,
 	.maxHeight = 256,
diff --git a/assets/cubyz/biomes/forest/bluebell_woods.zig.zon b/assets/cubyz/biomes/forest/bluebell_woods.zig.zon
index 0b6f412e99..5fed49f63b 100644
--- a/assets/cubyz/biomes/forest/bluebell_woods.zig.zon
+++ b/assets/cubyz/biomes/forest/bluebell_woods.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.minHeight = 35,
 	.maxHeight = 40,
diff --git a/assets/cubyz/biomes/forest/chopped.zig.zon b/assets/cubyz/biomes/forest/chopped.zig.zon
index d53147a901..2389b28d44 100644
--- a/assets/cubyz/biomes/forest/chopped.zig.zon
+++ b/assets/cubyz/biomes/forest/chopped.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.minHeight = 22,
 	.maxHeight = 40,
 	.minRadius = 64,
diff --git a/assets/cubyz/biomes/forest/mixed/oak_birch.zig.zon b/assets/cubyz/biomes/forest/mixed/oak_birch.zig.zon
index a23066b798..50d930ed50 100644
--- a/assets/cubyz/biomes/forest/mixed/oak_birch.zig.zon
+++ b/assets/cubyz/biomes/forest/mixed/oak_birch.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.minHeight = 22,
 	.maxHeight = 40,
diff --git a/assets/cubyz/biomes/forest/mixed/oak_birch_clearing.zig.zon b/assets/cubyz/biomes/forest/mixed/oak_birch_clearing.zig.zon
index 18246ff3a1..ab7c4b39e8 100644
--- a/assets/cubyz/biomes/forest/mixed/oak_birch_clearing.zig.zon
+++ b/assets/cubyz/biomes/forest/mixed/oak_birch_clearing.zig.zon
@@ -1,9 +1,13 @@
 .{
 	.chance = 0,
 	.keepOriginalTerrain = 1,
+	.radius = 32,
 	.minHeight = 22,
 	.maxHeight = 40,
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.minRadius = 20,
 	.maxRadius = 32,
 	.music = "cubyz:sunrise",
diff --git a/assets/cubyz/biomes/forest/mixed/oak_pine.zig.zon b/assets/cubyz/biomes/forest/mixed/oak_pine.zig.zon
index 93934014e2..0aabd94335 100644
--- a/assets/cubyz/biomes/forest/mixed/oak_pine.zig.zon
+++ b/assets/cubyz/biomes/forest/mixed/oak_pine.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.minHeight = 22,
 	.maxHeight = 45,
diff --git a/assets/cubyz/biomes/grassland.zig.zon b/assets/cubyz/biomes/grassland.zig.zon
index dd433fc6e4..04851a1821 100644
--- a/assets/cubyz/biomes/grassland.zig.zon
+++ b/assets/cubyz/biomes/grassland.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.minHeight = 22,
 	.maxHeight = 40,
diff --git a/assets/cubyz/biomes/hills/huge/temperate.zig.zon b/assets/cubyz/biomes/hills/huge/temperate.zig.zon
index 4aec85f52f..afcbd7991b 100644
--- a/assets/cubyz/biomes/hills/huge/temperate.zig.zon
+++ b/assets/cubyz/biomes/hills/huge/temperate.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.ground_structure = .{
 		"cubyz:grass",
 		"cubyz:soil",
diff --git a/assets/cubyz/biomes/hills/large/temperate.zig.zon b/assets/cubyz/biomes/hills/large/temperate.zig.zon
index 0dbc01a7df..c4924e3b58 100644
--- a/assets/cubyz/biomes/hills/large/temperate.zig.zon
+++ b/assets/cubyz/biomes/hills/large/temperate.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.ground_structure = .{
 		"cubyz:grass",
 		"cubyz:soil",
diff --git a/assets/cubyz/biomes/hills/temperate.zig.zon b/assets/cubyz/biomes/hills/temperate.zig.zon
index 1b9ea8b34a..2f3fa779bb 100644
--- a/assets/cubyz/biomes/hills/temperate.zig.zon
+++ b/assets/cubyz/biomes/hills/temperate.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.ground_structure = .{
 		"cubyz:grass",
 		"2 to 3 cubyz:soil",
diff --git a/assets/cubyz/biomes/mountains.zig.zon b/assets/cubyz/biomes/mountains.zig.zon
index 955efb9ec7..f508ec546f 100644
--- a/assets/cubyz/biomes/mountains.zig.zon
+++ b/assets/cubyz/biomes/mountains.zig.zon
@@ -2,6 +2,9 @@
 	.properties = .{
 		.mountain,
 	},
+	.tags = .{
+		.oak,
+	},
 	.radius = 400,
 	.minHeightLimit = 7,
 	.minHeight = 60,
diff --git a/assets/cubyz/biomes/prairie/_defaults.zig.zon b/assets/cubyz/biomes/prairie/_defaults.zig.zon
index 786aaa3c93..9aa0d33751 100644
--- a/assets/cubyz/biomes/prairie/_defaults.zig.zon
+++ b/assets/cubyz/biomes/prairie/_defaults.zig.zon
@@ -1,5 +1,10 @@
 .{
-	.properties = .{.dry},
+	.properties = .{
+		.dry,
+	},
+	.tags = .{
+		.oak,
+	},
 	.minHeightLimit = 7,
 	.maxHeightLimit = 60,
 	.smoothBeaches = true,
diff --git a/assets/cubyz/biomes/prairie/dry_spell/_defaults.zig.zon b/assets/cubyz/biomes/prairie/dry_spell/_defaults.zig.zon
index 1027acef8b..3ff393bc2d 100644
--- a/assets/cubyz/biomes/prairie/dry_spell/_defaults.zig.zon
+++ b/assets/cubyz/biomes/prairie/dry_spell/_defaults.zig.zon
@@ -2,6 +2,9 @@
 	.properties = .{
 		.dry,
 	},
+	.tags = .{
+		.oak,
+	},
 	.chance = 0,
 	.minRadius = 45,
 	.maxRadius = 60,
diff --git a/assets/cubyz/biomes/rocky_grassland.zig.zon b/assets/cubyz/biomes/rocky_grassland.zig.zon
index 7e8f317de6..4cd5c61052 100644
--- a/assets/cubyz/biomes/rocky_grassland.zig.zon
+++ b/assets/cubyz/biomes/rocky_grassland.zig.zon
@@ -1,5 +1,8 @@
 .{
 	.properties = .{},
+	.tags = .{
+		.oak,
+	},
 	.chance = 0.25,
 	.minHeightLimit = 7,
 	.minHeight = 20,
diff --git a/assets/cubyz/biomes/thicket.zig.zon b/assets/cubyz/biomes/thicket.zig.zon
index 385756b0a6..593209e5ce 100644
--- a/assets/cubyz/biomes/thicket.zig.zon
+++ b/assets/cubyz/biomes/thicket.zig.zon
@@ -3,6 +3,9 @@
 	.properties = .{
 		.wet,
 	},
+	.tags = .{
+		.oak,
+	},
 	.radius = 32,
 	.minHeight = 22,
 	.maxHeight = 40,