diff --git a/worldgen-c/bin/worldgen b/worldgen-c/bin/worldgen
index 20daa4b..33d4094 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 1cf9bd7..e27fecd 100644
--- a/worldgen-c/src/worldgen.c
+++ b/worldgen-c/src/worldgen.c
@@ -217,9 +217,9 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 	ctx->trail_segment_count = 0;
 	ctx->trail_segment_cap = 0;
 
-	const int step = 64;
-	const int max_points = 64;
-	const double min_spacing = 96.0;
+	const int step = 48;
+	const int max_points = 128;
+	const double min_spacing = 64.0;
 	int cap = max_points;
 	int count = 0;
 	int *px = (int *)malloc((size_t)cap * sizeof(int));
@@ -232,7 +232,7 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 	for (int z = min_z; z <= max_z; z += step) {
 		for (int x = min_x; x <= max_x; x += step) {
 			double val = land_value(ctx, x, z);
-			if (val < 0.05) continue;
+			if (val < -0.05) continue;
 			int spaced = 1;
 			for (int i = 0; i < count; ++i) {
 				double dx = (double)(x - px[i]);
@@ -253,10 +253,10 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 		}
 		if (count >= max_points) break;
 	}
-	if (count == 0) {
-		px = (int *)realloc(px, sizeof(int));
-		pz = (int *)realloc(pz, sizeof(int));
-		pv = (double *)realloc(pv, sizeof(double));
+	if (count < 2) {
+		px = (int *)realloc(px, 2 * sizeof(int));
+		pz = (int *)realloc(pz, 2 * sizeof(int));
+		pv = (double *)realloc(pv, 2 * sizeof(double));
 		if (!px || !pz || !pv) {
 			free(px); free(pz); free(pv);
 			return;
@@ -264,7 +264,10 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 		px[0] = (min_x + max_x) / 2;
 		pz[0] = (min_z + max_z) / 2;
 		pv[0] = 1.0;
-		count = 1;
+		px[1] = max_x - 16;
+		pz[1] = max_z - 16;
+		pv[1] = 0.8;
+		count = 2;
 	}
 
 	/* Select hubs: pick top valued, then farthest from existing hubs */