diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2afc16d3e..ae610fb41b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Poise system (not currently accessible to players for balancing reasons)
 - Snow particles
 - Basic NPC interaction
+- Lights in dungeons
 
 ### Changed
 
diff --git a/world/src/site/dungeon/mod.rs b/world/src/site/dungeon/mod.rs
index 425f092069..fc5b6c4ba4 100644
--- a/world/src/site/dungeon/mod.rs
+++ b/world/src/site/dungeon/mod.rs
@@ -1117,16 +1117,13 @@ impl Floor {
             .min_by_key(|nearest| rpos.distance_squared(*nearest))
     }
 
-    // Find relative orientation of a position relative to another position
+    // Find orientation of a position relative to another position
+    #[allow(clippy::collapsible_if)]
     fn relative_ori(pos1: Vec2<i32>, pos2: Vec2<i32>) -> u8 {
-        if pos1.x == pos2.x && pos1.y < pos2.y {
-            4
-        } else if pos1.x > pos2.x && pos1.y == pos2.y {
-            6
-        } else if pos1.x == pos2.x && pos1.y > pos2.y {
-            8
+        if (pos1.x - pos2.x).abs() < (pos1.y - pos2.y).abs() {
+            if pos1.y > pos2.y { 4 } else { 8 }
         } else {
-            2
+            if pos1.x > pos2.x { 2 } else { 6 }
         }
     }
 
@@ -1203,19 +1200,18 @@ impl Floor {
         };
 
         let tunnel_height = if self.final_level { 16.0 } else { 8.0 };
+        let pillar_thickness: i32 = 4;
 
         move |z| match self.tiles.get(tile_pos) {
             Some(Tile::Solid) => BlockMask::nothing(),
             Some(Tile::Tunnel) => {
                 let light_offset: i32 = 7;
                 if (dist_to_wall - wall_thickness) as i32 == 1
-                    && rtile_pos
-                        .map(|e| e % light_offset == 0)
-                        .reduce(|x, y| x ^ y)
+                    && rtile_pos.map(|e| e % light_offset == 0).reduce_bitxor()
                     && z == 1
                 {
                     let ori =
-                        Floor::relative_ori(self.nearest_wall(rpos).unwrap_or_default(), rpos);
+                        Floor::relative_ori(rpos, self.nearest_wall(rpos).unwrap_or_default());
                     let furniture = SpriteKind::WallSconce;
                     BlockMask::new(Block::air(furniture).with_ori(ori).unwrap(), 1)
                 } else if dist_to_wall >= wall_thickness
@@ -1241,19 +1237,18 @@ impl Floor {
                         tile_pos
                             .map(|e| e.rem_euclid(pillar_space) == 0)
                             .reduce_and()
-                            && rtile_pos.map(|e| e as f32).magnitude_squared() < 3.5f32.powi(2)
+                            && rtile_pos.map(|e| e as f32).magnitude_squared()
+                                < (pillar_thickness as f32 + 0.5).powi(2)
                     })
                     .unwrap_or(false) =>
             {
-                if z == 1 && rtile_pos.map(|e| e as f32).magnitude_squared() > 3.0f32.powi(2) {
-                    let ori = Floor::relative_ori(
-                        self.nearest_wall(rtile_pos).unwrap_or_default(),
-                        rtile_pos,
-                    );
+                if z == 1 && rtile_pos.product() == 0 && rtile_pos.sum().abs() == pillar_thickness {
+                    let ori = Floor::relative_ori(rtile_pos, Vec2::zero());
                     let furniture = SpriteKind::WallSconce;
                     BlockMask::new(Block::air(furniture).with_ori(ori).unwrap(), 1)
                 } else if z < self.rooms[*room].height
-                    && rtile_pos.map(|e| e as f32).magnitude_squared() > 3.0f32.powi(2)
+                    && rtile_pos.map(|e| e as f32).magnitude_squared()
+                        > (pillar_thickness as f32 - 0.5).powi(2)
                 {
                     vacant
                 } else {
@@ -1262,18 +1257,16 @@ impl Floor {
             }
 
             Some(Tile::Room(_)) => {
-                let light_offset: i32 = 7;
+                let light_offset = 7;
                 if z == 0 {
                     floor_sprite
-                } else if (dist_to_wall - 4.0).abs() < f32::EPSILON
-                    && rtile_pos
-                        .map(|e| e % light_offset == 0)
-                        .reduce(|x, y| x ^ y)
+                } else if dist_to_wall as i32 == 4
+                    && rtile_pos.map(|e| e % light_offset == 0).reduce_bitxor()
                     && z == 1
                 {
                     let ori = Floor::relative_ori(
-                        self.nearest_wall(rpos).unwrap_or_else(Vec2::zero),
                         rpos,
+                        self.nearest_wall(rpos).unwrap_or_else(Vec2::zero),
                     );
                     let furniture = SpriteKind::WallSconce;
                     BlockMask::new(Block::air(furniture).with_ori(ori).unwrap(), 1)
@@ -1287,31 +1280,28 @@ impl Floor {
             },
             Some(Tile::UpStair(room)) => {
                 let inner_radius: f32 = 0.5;
-                let stretch: f32 = 9.0;
+                let stretch = 9;
                 let block = make_staircase(
                     Vec3::new(rtile_pos.x, rtile_pos.y, z),
                     TILE_SIZE as f32 / 2.0,
                     inner_radius,
-                    stretch,
+                    stretch as f32,
                 );
-                let furniture = SpriteKind::WallLampSmall;
+                let furniture = SpriteKind::WallSconce;
                 let ori = Floor::relative_ori(
-                    self.nearest_wall(rtile_pos).unwrap_or_else(Vec2::zero),
                     rpos,
+                    self.nearest_wall(rtile_pos).unwrap_or_else(Vec2::zero),
                 );
                 if z < self.rooms[*room].height {
                     block.resolve_with(vacant)
-                } else if z as f32 % stretch == 0.0
-                    && rtile_pos.x == -TILE_SIZE / 2
-                    && rtile_pos.y == 0
-                {
+                } else if z % stretch == 0 && rtile_pos.x == -TILE_SIZE / 2 && rtile_pos.y == 0 {
                     BlockMask::new(Block::air(furniture).with_ori(ori).unwrap(), 1)
                 } else {
                     make_staircase(
                         Vec3::new(rtile_pos.x, rtile_pos.y, z),
                         TILE_SIZE as f32 / 2.0,
                         inner_radius,
-                        stretch,
+                        stretch as f32,
                     )
                 }
             },