diff --git a/data/mods/MindOverMatter/overmap/overmap_terrain.json b/data/mods/MindOverMatter/overmap/overmap_terrain.json
index 0ff9af330672a..4aecf92bd347a 100644
--- a/data/mods/MindOverMatter/overmap/overmap_terrain.json
+++ b/data/mods/MindOverMatter/overmap/overmap_terrain.json
@@ -3,6 +3,7 @@
     "type": "overmap_terrain",
     "id": [ "nether_crystal_field" ],
     "name": "crystal outcroppings",
+    "vision_levels": "blends_till_outlines",
     "sym": "*",
     "color": "white",
     "flags": [ "NO_ROTATE" ],
@@ -21,6 +22,7 @@
     "id": [ "office_cubical_phavian_roof" ],
     "copy-from": "generic_city_building",
     "looks_like": "office_cubical_roof",
+    "vision_levels": "roof_or_air",
     "name": "office roof",
     "color": "light_gray"
   },
@@ -28,6 +30,7 @@
     "type": "overmap_terrain",
     "id": [ "office_cubical_phavian_basement" ],
     "copy-from": "generic_city_building",
+    "vision_levels": "underground_dirt",
     "looks_like": "office_cubical",
     "name": "office basement",
     "color": "light_gray"
@@ -36,6 +39,7 @@
     "type": "overmap_terrain",
     "id": [ "office_cubical_phavian_subbasement" ],
     "copy-from": "generic_city_building",
+    "vision_levels": "underground_stone",
     "looks_like": "office_cubical",
     "name": "office subbasement",
     "color": "light_gray"
@@ -47,6 +51,7 @@
     "sym": "L",
     "looks_like": "lab_surface_brick_basementD1_hidden_lab_stairs",
     "color": "white",
+    "vision_levels": "underground_dirt",
     "spawns": { "group": "GROUP_LAB_SURFACE", "population": [ 1, 5 ], "chance": 50 },
     "see_cost": 5,
     "mondensity": 2
@@ -70,6 +75,7 @@
     "//": "parking lot attached to Project PHAVIAN Lab.",
     "sym": "_",
     "looks_like": "lab_surface_parking_blockE2",
+    "vision_levels": "large_pavement",
     "color": "dark_gray",
     "spawns": { "group": "GROUP_LAB_RESEARCH", "population": [ 5, 20 ], "chance": 50 },
     "extras": "phavian_lab_lot",
@@ -96,6 +102,7 @@
     "name": "research facility",
     "sym": "l",
     "color": "light_gray",
+    "vision_levels": "large_building",
     "looks_like": "lab_surface_brick_blockA2",
     "spawns": { "group": "GROUP_LAB_RESEARCH", "population": [ 10, 25 ], "chance": 60 },
     "extras": "phavian_lab_interior",
@@ -108,6 +115,7 @@
     "name": "research facility entrance",
     "sym": "L",
     "color": "white",
+    "vision_levels": "large_building",
     "looks_like": "lab_surface_brick_blockC3",
     "spawns": { "group": "GROUP_LAB_RESEARCH", "population": [ 8, 25 ], "chance": 50 },
     "extras": "phavian_lab_interior",
@@ -165,6 +173,7 @@
     ],
     "name": "open air",
     "sym": ".",
+    "vision_levels": "roof_or_air",
     "looks_like": "lab_surface_brick_block5C2",
     "color": "blue",
     "see_cost": 1
@@ -253,6 +262,7 @@
     "name": "research facility, roof",
     "sym": "l",
     "looks_like": "lab_surface_brick_block5A2",
+    "vision_levels": "roof_or_air",
     "color": "dark_gray",
     "see_cost": 2
   },