diff --git a/worldgen-c/bin/worldgen b/worldgen-c/bin/worldgen
index 1f59528..d74e9c9 100755
Binary files a/worldgen-c/bin/worldgen and b/worldgen-c/bin/worldgen differ
diff --git a/worldgen-c/src/worldgen.c b/worldgen-c/src/worldgen.c
index 82598ef..8416b3d 100644
--- a/worldgen-c/src/worldgen.c
+++ b/worldgen-c/src/worldgen.c
@@ -1598,6 +1598,33 @@ static void build_redwood_titan(worldgen_ctx *ctx, int x, int y, int z, int heig
 		{1, 0}, {-1, 0}, {0, 1}, {0, -1},
 		{1, 1}, {1, -1}, {-1, 1}, {-1, -1}
 	};
+	if (rng_next_f64(rng) < 0.10) {
+		int snag_height = core_height - rng_range_inclusive(rng, 4, 10);
+		if (snag_height < 22) snag_height = 22;
+		int taper_start = snag_height - 5;
+		for (int dy = 0; dy < snag_height; ++dy) {
+			int radius = (dy >= taper_start) ? 0 : 1;
+			for (int dx = -radius; dx <= radius; ++dx) {
+				for (int dz = -radius; dz <= radius; ++dz) {
+					if (radius == 1 && abs(dx) == 1 && abs(dz) == 1 && dy > 10 && (dy % 3) == 0) continue;
+					block_list_push(out, x + dx, y + dy, z + dz, (uint16_t)arch->log_block);
+				}
+			}
+			if (dy > 8 && dy < snag_height - 4 && (dy % 7) == 0) {
+				int dir = (dy / 7 + rng_range_inclusive(rng, 0, 3)) & 7;
+				int branch_log = redwood_axis_log(arch->log_block, dirs8[dir][0], dirs8[dir][1]);
+				int len = 2 + rng_range_inclusive(rng, 0, 2);
+				for (int step = 2; step <= len + 1; ++step) {
+					block_list_push(out, x + dirs8[dir][0] * step, y + dy, z + dirs8[dir][1] * step, (uint16_t)branch_log);
+				}
+			}
+		}
+		for (int i = 0; i < 6; ++i) {
+			int root_len = 3 + rng_range_inclusive(rng, 0, 2);
+			place_redwood_root(ctx, x, y, z, dirs8[i][0], dirs8[i][1], root_len, arch->log_block, rng, out);
+		}
+		return;
+	}
 	int spire = 3 + rng_range_inclusive(rng, 0, 2);
 	int crown_start = y + core_height / 2 + rng_range_inclusive(rng, 0, 2);
 
@@ -3709,7 +3736,7 @@ static void generate_chunk_border_wall(worldgen_ctx *ctx, int chunk_x, int chunk
 
 			int center_x = world_x;
 			int center_z = world_z;
-			int base_along = (floor_div_int(along, tower_spacing) * tower_spacing) + tower_spacing / 2;
+			int base_along = floor_div_int(along + tower_spacing / 2, tower_spacing) * tower_spacing;
 			switch (side) {
 				case 0:
 					center_x = ctx->wall_min_x + wall_center;