diff --git a/include/gfx/gfx.h b/include/gfx/gfx.h
index f7fb133..7c630ca 100644
--- a/include/gfx/gfx.h
+++ b/include/gfx/gfx.h
@@ -122,6 +122,7 @@ void gfx_blend_amap_bright(Texture *dst, int dx, int dy, Texture *src, int sx, i
 void gfx_blend_amap_alpha_src_bright(Texture *dst, int dx, int dy, Texture *src, int sx, int sy, int w, int h, int alpha, int rate);
 void gfx_blend_use_amap_color(Texture *dst, int dx, int dy, Texture *src, int sx, int sy, int w, int h, int r, int g, int b, int rate);
 void gfx_blend_screen(Texture *dst, int dx, int dy, Texture *src, int sx, int sy, int w, int h);
+void gfx_blend_multiply(Texture *dst, int dx, int dy, Texture *src, int sx, int sy, int w, int h);
 void gfx_fill(struct texture *dst, int x, int y, int w, int h, int r, int g, int b);
 void gfx_fill_alpha_color(struct texture *dst, int x, int y, int w, int h, int r, int g, int b, int a);
 void gfx_fill_amap(struct texture *dst, int x, int y, int w, int h, int a);
diff --git a/src/draw.c b/src/draw.c
index 17889a6..5973623 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -452,7 +452,16 @@ void gfx_blend_screen(Texture *dst, int dx, int dy, Texture *src, int sx, int sy
 	run_copy_shader(&copy_shader.s, dst, src, &data);
 
 	restore_blend_mode();
+}
 
+void gfx_blend_multiply(Texture *dst, int dx, int dy, Texture *src, int sx, int sy, int w, int h)
+{
+	glBlendFuncSeparate(GL_DST_COLOR, GL_ZERO, GL_ZERO, GL_ONE);
+
+	struct copy_data data = COPY_DATA(dx, dy, sx, sy, w, h);
+	run_copy_shader(&copy_shader.s, dst, src, &data);
+
+	restore_blend_mode();
 }
 
 void gfx_fill(Texture *dst, int x, int y, int w, int h, int r, int g, int b)
diff --git a/src/hll/DrawGraph.c b/src/hll/DrawGraph.c
index d414854..4d1c53f 100644
--- a/src/hll/DrawGraph.c
+++ b/src/hll/DrawGraph.c
@@ -141,7 +141,11 @@ static void DrawGraph_BlendScreen(int dst, int dx, int dy, int src, int sx, int
 	gfx_blend_screen(DTEX(dst), dx, dy, STEX(src), sx, sy, w, h);
 }
 
-//void DrawGraph_BlendMultiply(int dst, int dx, int dy, int src, int sx, int sy, int w, int h);
+static void DrawGraph_BlendMultiply(int dst, int dx, int dy, int src, int sx, int sy, int w, int h)
+{
+	gfx_blend_multiply(DTEX(dst), dx, dy, STEX(src), sx, sy, w, h);
+}
+
 //void DrawGraph_BlendScreenAlpha(int dst, int dx, int dy, int src, int sx, int sy, int w, int h, int alpha);
 
 static void DrawGraph_Fill(int dst, int x, int y, int w, int h, int r, int g, int b)
@@ -391,7 +395,7 @@ HLL_LIBRARY(DrawGraph,
 	    HLL_EXPORT(BlendAMapAlphaSrcBright, DrawGraph_BlendAMapAlphaSrcBright),
 	    HLL_EXPORT(BlendUseAMapColor, DrawGraph_BlendUseAMapColor),
 	    HLL_EXPORT(BlendScreen, DrawGraph_BlendScreen),
-	    //HLL_EXPORT(BlendMultiply, DrawGraph_BlendMultiply),
+	    HLL_EXPORT(BlendMultiply, DrawGraph_BlendMultiply),
 	    //HLL_EXPORT(BlendScreenAlpha, DrawGraph_BlendScreenAlpha),
 	    HLL_EXPORT(Fill, DrawGraph_Fill),
 	    HLL_EXPORT(FillAlphaColor, DrawGraph_FillAlphaColor),