diff --git a/Core/Config.cpp b/Core/Config.cpp
index a707a4e9e9..64ed3e27a2 100644
--- a/Core/Config.cpp
+++ b/Core/Config.cpp
@@ -444,6 +444,7 @@ static ConfigSetting graphicsSettings[] = {
 	ConfigSetting("VSyncInterval", &g_Config.bVSync, false),
 	ReportedConfigSetting("DisableStencilTest", &g_Config.bDisableStencilTest, false),
 	ReportedConfigSetting("AlwaysDepthWrite", &g_Config.bAlwaysDepthWrite, false),
+	ReportedConfigSetting("DepthRangeHack", &g_Config.bDepthRangeHack, false),
 
 	// Not really a graphics setting...
 	ReportedConfigSetting("TimerHack", &g_Config.bTimerHack, &DefaultTimerHack),
diff --git a/Core/Config.h b/Core/Config.h
index f271bb5d51..f036ae37d2 100644
--- a/Core/Config.h
+++ b/Core/Config.h
@@ -165,6 +165,7 @@ public:
 	bool bReloadCheats;
 	bool bDisableStencilTest;
 	bool bAlwaysDepthWrite;
+	bool bDepthRangeHack;
 	bool bTimerHack;
 	bool bAlphaMaskHack;
 	bool bBlockTransferGPU;
diff --git a/GPU/GLES/StateMapping.cpp b/GPU/GLES/StateMapping.cpp
index a826854cc5..11313ae63c 100644
--- a/GPU/GLES/StateMapping.cpp
+++ b/GPU/GLES/StateMapping.cpp
@@ -805,9 +805,46 @@ void TransformDrawEngine::ApplyDrawState(int prim) {
 
 		float zScale = getFloat24(gstate.viewportz1) / 65535.0f;
 		float zOff = getFloat24(gstate.viewportz2) / 65535.0f;
-		float depthRangeMin = zOff - zScale;
-		float depthRangeMax = zOff + zScale;
-		glstate.depthRange.set(depthRangeMin, depthRangeMax);
+
+		// In Phantasy Star Portable 2, depth range sometimes goes negative and is clamped by glDepthRange to 0,
+		// causing graphics clipping glitch (issue #1788). This hack modifies the projection matrix to work around it.
+		if (g_Config.bDepthRangeHack) {
+			// if far depth range < 0
+			if (zOff + zScale < 0.0f) {
+				// if perspective projection
+				if (gstate.projMatrix[11] < 0.0f) {
+					float depthMax = gstate.getDepthRangeMax() / 65535.0f;
+					float depthMin = gstate.getDepthRangeMin() / 65535.0f;
+
+					float a = gstate.projMatrix[10];
+					float b = gstate.projMatrix[14];
+
+					float n = b / (a - 1.0f);
+					float f = b / (a + 1.0f);
+
+					f = (n * f) / (n + ((zOff + zScale) * (n - f) / (depthMax - depthMin)));
+
+					a = (n + f) / (n - f);
+					b = (2.0f * n * f) / (n - f);
+
+					gstate.projMatrix[10] = a;
+					gstate.projMatrix[14] = b;
+
+					shaderManager_->DirtyUniform(DIRTY_PROJMATRIX);
+
+					zOff = (zOff - zScale) / 2.0f;
+					zScale = -zOff;
+
+					gstate.viewportz2 &= 0xFF000000;
+					gstate.viewportz2 |= toFloat24(zOff * 65535.0f);
+
+					gstate.viewportz1 &= 0xFF000000;
+					gstate.viewportz1 |= toFloat24(zScale * 65535.0f);
+				}
+			}
+		}
+
+		glstate.depthRange.set(zOff - zScale, zOff + zScale);
 	}
 }
 
diff --git a/UI/GameSettingsScreen.cpp b/UI/GameSettingsScreen.cpp
index 2ed0afc049..a2c050c3f3 100644
--- a/UI/GameSettingsScreen.cpp
+++ b/UI/GameSettingsScreen.cpp
@@ -278,6 +278,9 @@ void GameSettingsScreen::CreateViews() {
 	CheckBox *prescale = graphicsSettings->Add(new CheckBox(&g_Config.bPrescaleUV, gs->T("Texture Coord Speedhack")));
 	prescale->SetDisabledPtr(&g_Config.bSoftwareRendering);
 
+	CheckBox *depthRange = graphicsSettings->Add(new CheckBox(&g_Config.bDepthRangeHack, gs->T("Depth Range Hack (Phantasy Star Portable 2)")));
+	depthRange->SetDisabledPtr(&g_Config.bSoftwareRendering);
+
 	graphicsSettings->Add(new ItemHeader(gs->T("Overlay Information")));
 	static const char *fpsChoices[] = {
 		"None", "Speed", "FPS", "Both"