diff --git a/data/ui/kofi1_d.png b/data/ui/kofi1_d.png
new file mode 100644
index 00000000..00aedc50
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diff --git a/data/ui/kofi1_h.png b/data/ui/kofi1_h.png
new file mode 100644
index 00000000..24c1636b
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diff --git a/data/ui/kofi1_i.png b/data/ui/kofi1_i.png
new file mode 100644
index 00000000..b1a554b0
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diff --git a/data/ui/kofi1_n.png b/data/ui/kofi1_n.png
new file mode 100644
index 00000000..b1a554b0
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diff --git a/src/gui/MainMenuGui.hx b/src/gui/MainMenuGui.hx
index 8672985f..fdbfd615 100644
--- a/src/gui/MainMenuGui.hx
+++ b/src/gui/MainMenuGui.hx
@@ -181,5 +181,22 @@ class MainMenuGui extends GuiImage {
 		versionText.text.text = "<p align=\"center\">1.4.0</p>";
 		versionText.text.filter = new DropShadow(1.414, 0.785, 0x3333337F, 1, 0, 0.7, 1, true);
 		this.addChild(versionText);
+
+		#if js
+		var kofi = new GuiButton(loadButtonImages("data/ui/kofi1"));
+		kofi.horizSizing = Left;
+		kofi.vertSizing = Top;
+		kofi.position = new Vector(473, 424);
+		kofi.extent = new Vector(143, 36);
+		kofi.pressedAction = (sender) -> {
+			#if sys
+			hxd.System.openURL("https://ko-fi.com/H2H5FRTTL");
+			#end
+			#if js
+			js.Browser.window.open("https://ko-fi.com/H2H5FRTTL");
+			#end
+		}
+		this.addChild(kofi);
+		#end
 	}
 }
diff --git a/src/gui/PlayMissionGui.hx b/src/gui/PlayMissionGui.hx
index 1a5862d8..6ce9996c 100644
--- a/src/gui/PlayMissionGui.hx
+++ b/src/gui/PlayMissionGui.hx
@@ -1021,6 +1021,23 @@ class PlayMissionGui extends GuiImage {
 		}
 
 		setCategoryFunc(currentGame, currentCategoryStatic, false);
+
+		#if js
+		var kofi = new GuiButton(loadButtonImages("data/ui/kofi1"));
+		kofi.horizSizing = Left;
+		kofi.vertSizing = Top;
+		kofi.position = new Vector(473, 424);
+		kofi.extent = new Vector(143, 36);
+		kofi.pressedAction = (sender) -> {
+			#if sys
+			hxd.System.openURL("https://ko-fi.com/H2H5FRTTL");
+			#end
+			#if js
+			js.Browser.window.open("https://ko-fi.com/H2H5FRTTL");
+			#end
+		}
+		this.addChild(kofi);
+		#end
 	}
 
 	public override function render(scene2d:Scene) {