diff --git a/src/game/GameController.cpp b/src/game/GameController.cpp
index 2a626062c..3031fb622 100644
--- a/src/game/GameController.cpp
+++ b/src/game/GameController.cpp
@@ -612,7 +612,7 @@ void GameController::ReloadSim()
 {
 	if(gameModel->GetSave() && gameModel->GetSave()->GetGameSave())
 	{
-		gameModel->GetSimulation()->Load(gameModel->GetSave()->GetGameSave());
+		gameModel->SetSave(gameModel->GetSave());
 	}
 }
 
diff --git a/src/game/GameController.h b/src/game/GameController.h
index e75cf491b..ecbe9b312 100644
--- a/src/game/GameController.h
+++ b/src/game/GameController.h
@@ -78,6 +78,7 @@ public:
 	void SetActiveMenu(Menu * menu);
 	void SetActiveTool(int toolSelection, Tool * tool);
 	void SetColour(ui::Colour colour);
+	void SetToolStrength(float value);
 	void OpenSearch();
 	void OpenLogin();
 	void OpenTags();
diff --git a/src/game/GameModel.cpp b/src/game/GameModel.cpp
index 2ae0713f8..5c9344d8d 100644
--- a/src/game/GameModel.cpp
+++ b/src/game/GameModel.cpp
@@ -281,13 +281,13 @@ SaveInfo * GameModel::GetSave()
 
 void GameModel::SetSave(SaveInfo * newSave)
 {
-	if(currentSave)
+	if(currentSave != newSave)
 		delete currentSave;
 	currentSave = newSave;
 	if(currentSave && currentSave->GetGameSave())
 	{
 		GameSave * saveData = currentSave->GetGameSave();
-		SetPaused(saveData->paused);
+		SetPaused(saveData->paused & GetPaused());
 		sim->gravityMode = saveData->gravityMode;
 		sim->air->airMode = saveData->airMode;
 		sim->legacy_enable = saveData->legacyEnable;
diff --git a/src/simulation/SaveRenderer.cpp b/src/simulation/SaveRenderer.cpp
index 50df27854..cfa83c6d3 100644
--- a/src/simulation/SaveRenderer.cpp
+++ b/src/simulation/SaveRenderer.cpp
@@ -9,7 +9,6 @@
 #include "Graphics.h"
 #include "Simulation.h"
 #include "Renderer.h"
-#include "SaveLoader.h"
 
 
 SaveRenderer::SaveRenderer(){
diff --git a/src/simulation/tools/NGrv.cpp b/src/simulation/tools/NGrv.cpp
new file mode 100644
index 000000000..7a097d555
--- /dev/null
+++ b/src/simulation/tools/NGrv.cpp
@@ -0,0 +1,18 @@
+#include "simulation/Tools.h"
+#include "simulation/Simulation.h"
+//#TPT-Directive ToolClass Tool_NGrv TOOL_NGRV 5
+Tool_NGrv::Tool_NGrv()
+{
+	Identifier = "DEFAULT_TOOL_NGRV";
+	Name = "NGRV";
+	Colour = PIXPACK(0xAACCFF);
+	Description = "Creates a short-lasting negative gravity well";
+}
+
+int Tool_NGrv::Perform(Simulation * sim, Particle * cpart, int x, int y, float strength)
+{
+	sim->gravmap[((y/CELL)*(XRES/CELL))+(x/CELL)] += 0.03f*strength;
+	return 1;
+}
+
+Tool_NGrv::~Tool_NGrv() {}
\ No newline at end of file
diff --git a/src/simulation/tools/Vac.cpp b/src/simulation/tools/Vac.cpp
new file mode 100644
index 000000000..1ac9c5078
--- /dev/null
+++ b/src/simulation/tools/Vac.cpp
@@ -0,0 +1,18 @@
+#include "simulation/Tools.h"
+#include "simulation/Air.h"
+//#TPT-Directive ToolClass Tool_Vac TOOL_VAC 2
+Tool_Vac::Tool_Vac()
+{
+	Identifier = "DEFAULT_TOOL_VAC";
+	Name = "VAC";
+	Colour = PIXPACK(0x000000);
+	Description = "Removes air pressure";
+}
+
+int Tool_Vac::Perform(Simulation * sim, Particle * cpart, int x, int y, float strength)
+{
+	sim->air->pv[y/CELL][x/CELL] -= 0.03f*strength;
+	return 1;
+}
+
+Tool_Vac::~Tool_Vac() {}