diff --git a/binaries/data/mods/public/simulation/data/technologies/phase_city.json b/binaries/data/mods/public/simulation/data/technologies/phase_city.json
index 10bb0ebdbf..1a8ab03b90 100644
--- a/binaries/data/mods/public/simulation/data/technologies/phase_city.json
+++ b/binaries/data/mods/public/simulation/data/technologies/phase_city.json
@@ -10,7 +10,7 @@
 	"description": "Advances from a bustling town to a veritable metropolis, full of the wonders of modern technology.",
 	"cost": {"food": 0, "wood": 0, "stone": 1000, "metal": 1000},
 	"requirements": { "class": "Town", "number": 4 },
-	"requirementsTooltip": "Requires 4 town structures of any type. Walls and Civ Centres do not count.",
+	"requirementsTooltip": "Requires 4 new Town Phase structures (except Walls and Civ Centres).",
 	"supersedes": "phase_town",
 	"icon": "city_phase.png",
 	"researchTime": 60,
diff --git a/binaries/data/mods/public/simulation/data/technologies/phase_city_britons.json b/binaries/data/mods/public/simulation/data/technologies/phase_city_britons.json
index 950afe5225..7fc129f65b 100644
--- a/binaries/data/mods/public/simulation/data/technologies/phase_city_britons.json
+++ b/binaries/data/mods/public/simulation/data/technologies/phase_city_britons.json
@@ -3,7 +3,7 @@
 	"description": "Advance from a bustling town to large city.",
 	"cost": {"food": 0, "wood": 0, "stone": 1000, "metal": 1000},
 	"requirements": { "class": "Town", "number": 4 },
-	"requirementsTooltip": "Requires 4 town structures of any type. Walls and Civ Centres do not count.",
+	"requirementsTooltip": "Requires 4 new Town Phase structures (except Walls and Civ Centres).",
 	"icon": "city_phase.png",
 	"researchTime": 60,
 	"tooltip": "Advance to City Phase, which unlocks Brythonic structures and units. Territory radius for Civilisation Centres increased by another +25%",
diff --git a/binaries/data/mods/public/simulation/data/technologies/phase_city_gauls.json b/binaries/data/mods/public/simulation/data/technologies/phase_city_gauls.json
index 1931f5de3f..411f0cde98 100644
--- a/binaries/data/mods/public/simulation/data/technologies/phase_city_gauls.json
+++ b/binaries/data/mods/public/simulation/data/technologies/phase_city_gauls.json
@@ -3,7 +3,7 @@
 	"description": "Advance from a bustling town to large city.",
 	"cost": {"food": 0, "wood": 0, "stone": 1000, "metal": 1000},
 	"requirements": { "class": "Town", "number": 4 },
-	"requirementsTooltip": "Requires 4 town structures of any type. Walls and Civ Centres do not count.",
+	"requirementsTooltip": "Requires 4 new Town Phase structures (except Walls and Civ Centres).",
 	"icon": "city_phase.png",
 	"researchTime": 60,
 	"tooltip": "Advance to City Phase, which unlocks Gallic structures and units. Territory radius for Civilisation Centres increased by another +25%",
diff --git a/binaries/data/mods/public/simulation/data/technologies/phase_town.json b/binaries/data/mods/public/simulation/data/technologies/phase_town.json
index ebf37772f7..fe7bf2354a 100644
--- a/binaries/data/mods/public/simulation/data/technologies/phase_town.json
+++ b/binaries/data/mods/public/simulation/data/technologies/phase_town.json
@@ -3,7 +3,7 @@
 	"description": "Advances from a small village to a bustling town, ready to expand rapidly.",
 	"cost": { "food": 500, "wood": 500, "stone": 0, "metal": 0 },
 	"requirements": { "class": "Village", "number": 6 },
-	"requirementsTooltip": "Requires 5 village structures of any type. Farm fields and palisades do not count.",
+	"requirementsTooltip": "Requires 5 Village Phase structures (except Palisades and Farm Fields).",
 	"supersedes": "phase_village",
 	"icon": "town_phase.png",
 	"researchTime": 30,