diff --git a/demo_data/dem b/demo_data/dem
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diff --git a/demo_data/dirs b/demo_data/dirs
deleted file mode 100644
index c302967..0000000
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diff --git a/demo_data/lakes b/demo_data/lakes
deleted file mode 100644
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diff --git a/demo_data/offset_x b/demo_data/offset_x
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diff --git a/demo_data/offset_y b/demo_data/offset_y
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diff --git a/demo_data/rivers b/demo_data/rivers
deleted file mode 100644
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diff --git a/demo_data/size b/demo_data/size
deleted file mode 100644
index c71f36a..0000000
--- a/demo_data/size
+++ /dev/null
@@ -1,2 +0,0 @@
-401
-401
\ No newline at end of file
diff --git a/terrain_default.conf b/terrain_default.conf
deleted file mode 100644
index 93448e7..0000000
--- a/terrain_default.conf
+++ /dev/null
@@ -1,17 +0,0 @@
-mapsize = 1000
-scale = 400
-vscale = 300
-offset = 0
-persistence = 0.6
-lacunarity = 2.0
-
-K = 0.5
-m = 0.5
-d = 0.5
-sea_level = 0
-sea_level_variations = 8
-sea_level_variations_time = 2
-flex_radius = 20
-
-time = 10
-niter = 10
diff --git a/terrain_higher.conf b/terrain_higher.conf
deleted file mode 100644
index bc20303..0000000
--- a/terrain_higher.conf
+++ /dev/null
@@ -1,17 +0,0 @@
-mapsize = 1000
-scale = 400
-vscale = 600
-offset = 0
-persistence = 0.65
-lacunarity = 2.0
-
-K = 0.5
-m = 0.45
-d = 0.55
-sea_level = 0
-sea_level_variations = 12
-sea_level_variations_time = 2
-flex_radius = 50
-
-time = 10
-niter = 10
diff --git a/terrain_original.conf b/terrain_original.conf
deleted file mode 100644
index 10a3ad0..0000000
--- a/terrain_original.conf
+++ /dev/null
@@ -1,16 +0,0 @@
-mapsize = 1000
-scale = 400
-vscale = 300
-offset = 0
-persistence = 0.6
-lacunarity = 2.0
-flow_method = steepest
-
-K = 1
-m = 0.35
-d = 0
-sea_level = 0
-flex_radius = 20
-
-time = 10
-niter = 10