Index: binaries/data/mods/public/simulation/data/technologies/gather_farming_fertilizer.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_farming_fertilizer.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_farming_fertilizer.json
@@ -3,7 +3,7 @@
 	"description": "Extra nutrients for farms.",
 	"cost": {
 		"wood": 400,
-		"metal": 300
+		"metal": 200
 	},
 	"supersedes": "gather_farming_training",
 	"requirements": { "tech": "phase_city" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_farming_training.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_farming_training.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_farming_training.json
@@ -3,7 +3,7 @@
 	"description": "Training for workers to increase farm gathering speed.",
 	"cost": {
 		"wood": 300,
-		"metal": 200
+		"metal": 150
 	},
 	"supersedes": "gather_farming_plows",
 	"requirements": { "tech": "phase_town" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_lumbering_sharpaxes.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_lumbering_sharpaxes.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_lumbering_sharpaxes.json
@@ -2,8 +2,8 @@
 	"genericName": "Sharp Axe Heads",
 	"description": "Increases wood gathering rates for trees.",
 	"cost": {
-		"wood": 600,
-		"metal": 300
+		"wood": 400,
+		"metal": 200
 	},
 	"supersedes": "gather_lumbering_strongeraxes",
 	"requirements": { "tech": "phase_city" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_lumbering_strongeraxes.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_lumbering_strongeraxes.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_lumbering_strongeraxes.json
@@ -2,8 +2,8 @@
 	"genericName": "Stronger Axe",
 	"description": "Increases wood gathering rates for trees.",
 	"cost": {
-		"wood": 400,
-		"metal": 200
+		"wood": 300,
+		"metal": 150
 	},
 	"supersedes": "gather_lumbering_ironaxes",
 	"requirements": { "tech": "phase_town" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_mining_serfs.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_mining_serfs.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_mining_serfs.json
@@ -5,8 +5,8 @@
 	},
 	"description": "Compel serfs to help your workers quarry stone. Increases stone gathering rates.",
 	"cost": {
-		"wood": 400,
-		"metal": 200
+		"wood": 300,
+		"metal": 150
 	},
 	"supersedes": "gather_mining_servants",
 	"requirements": { "tech": "phase_town" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_mining_shaftmining.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_mining_shaftmining.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_mining_shaftmining.json
@@ -2,8 +2,8 @@
 	"genericName": "Shaft Mining",
 	"description": "Develop shaft mining. Increases metal gathering rates.",
 	"cost": {
-		"wood": 400,
-		"metal": 200
+		"wood": 300,
+		"metal": 150
 	},
 	"supersedes": "gather_mining_wedgemallet",
 	"requirements": { "tech": "phase_town" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_mining_silvermining.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_mining_silvermining.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_mining_silvermining.json
@@ -6,8 +6,8 @@
 	},
 	"description": "Strike a vein of precious silver. Increases metal gathering rates.",
 	"cost": {
-		"wood": 600,
-		"metal": 300
+		"wood": 400,
+		"metal": 200
 	},
 	"supersedes": "gather_mining_shaftmining",
 	"requirements": { "tech": "phase_city" },
Index: binaries/data/mods/public/simulation/data/technologies/gather_mining_slaves.json
===================================================================
--- binaries/data/mods/public/simulation/data/technologies/gather_mining_slaves.json
+++ binaries/data/mods/public/simulation/data/technologies/gather_mining_slaves.json
@@ -10,8 +10,8 @@
 	},
 	"description": "Buy slaves to help your workers quarry stone. Increases stone gathering rates.",
 	"cost": {
-		"wood": 600,
-		"metal": 300
+		"wood": 400,
+		"metal": 200
 	},
 	"supersedes": "gather_mining_serfs",
 	"requirements": { "tech": "phase_city" },