diff --git a/mods/ts/rules/world.yaml b/mods/ts/rules/world.yaml
index ff02240a03..a70da76e28 100644
--- a/mods/ts/rules/world.yaml
+++ b/mods/ts/rules/world.yaml
@@ -24,7 +24,7 @@
 	ResourceType@Tiberium:
 		ResourceType: 1
 		Palette: greentiberium
-		Variants: tib01, tib02, tib03, tib04, tib05, tib06, tib07, tib08, tib09, tib10, tib11, tib12, tib13, tib14, tib15, tib16, tib17, tib18, tib19, tib20
+		Variants: tib01, tib02, tib03, tib04, tib05, tib06, tib07, tib08, tib09, tib10, tib11, tib12
 		MaxDensity: 12
 		ValuePerUnit: 50
 		Name: Tiberium
@@ -35,7 +35,7 @@
 	ResourceType@BlueTiberium:
 		ResourceType: 2
 		Palette: bluetiberium
-		Variants: tib01, tib02, tib03, tib04, tib05, tib06, tib07, tib08, tib09, tib10, tib11, tib12, tib13, tib14, tib15, tib16, tib17, tib18, tib19, tib20
+		Variants: tib01, tib02, tib03, tib04, tib05, tib06, tib07, tib08, tib09, tib10, tib11, tib12
 		MaxDensity: 12
 		ValuePerUnit: 100
 		Name: BlueTiberium
diff --git a/mods/ts/sequences/misc.yaml b/mods/ts/sequences/misc.yaml
index d98cd6e6af..5fee6a0f5c 100644
--- a/mods/ts/sequences/misc.yaml
+++ b/mods/ts/sequences/misc.yaml
@@ -277,14 +277,14 @@ resources:
 	tib10: tib10
 	tib11: tib11
 	tib12: tib12
-	tib13: tib13
-	tib14: tib14
-	tib15: tib15
-	tib16: tib16
-	tib17: tib17
-	tib18: tib18
-	tib19: tib19
-	tib20: tib20
+	tib13: tib13 # TODO: NW ramp variant, currently unused
+	tib14: tib14 # TODO: NW ramp variant, currently unused
+	tib15: tib15 # TODO: NE ramp variant, currently unused
+	tib16: tib16 # TODO: NE ramp variant, currently unused
+	tib17: tib17 # TODO: SE ramp variant, currently unused
+	tib18: tib18 # TODO: SE ramp variant, currently unused
+	tib19: tib19 # TODO: SW ramp variant, currently unused
+	tib20: tib20 # TODO: SW ramp variant, currently unused
 	veins: veins
 		Length: 1
 		Start: 52