diff --git a/src/main/java/org/jenkinsci/plugins/unity3d/Unity3dBuilder.java b/src/main/java/org/jenkinsci/plugins/unity3d/Unity3dBuilder.java
index 56096089..38e910dc 100644
--- a/src/main/java/org/jenkinsci/plugins/unity3d/Unity3dBuilder.java
+++ b/src/main/java/org/jenkinsci/plugins/unity3d/Unity3dBuilder.java
@@ -62,9 +62,12 @@ public class Unity3dBuilder extends Builder {
     private String argLine;
     private String unstableReturnCodes;
 
+    private String scriptableUnity3dName;
+
     @DataBoundConstructor
-    public Unity3dBuilder(String unity3dName, String argLine, String unstableReturnCodes) {
+    public Unity3dBuilder(String unity3dName, String scriptableUnity3dName, String argLine, String unstableReturnCodes) {
         this.unity3dName = unity3dName;
+        this.scriptableUnity3dName = scriptableUnity3dName;
         this.argLine = argLine;
         this.unstableReturnCodes = unstableReturnCodes;
     }
@@ -106,6 +109,10 @@ public String getUnity3dName() {
         return unity3dName;
     }
 
+    public String getScriptableUnity3dName() {
+        return scriptableUnity3dName;
+    }
+
 
     private static class PerformException extends Exception {
         private static final long serialVersionUID = 1L;
@@ -134,7 +141,7 @@ public boolean perform(AbstractBuild<?,?> build, Launcher launcher, BuildListene
     private void _perform(AbstractBuild<?,?> build, Launcher launcher, BuildListener listener) throws IOException, InterruptedException, PerformException {
         EnvVars env = build.getEnvironment(listener);
         
-        Unity3dInstallation ui = getAndConfigureUnity3dInstallation(listener, env);
+        Unity3dInstallation ui = getAndConfigureUnity3dInstallation(build, listener, env);
 
         ArgumentListBuilder args = prepareCommandlineArguments(build, launcher, ui, env);
 
@@ -225,8 +232,9 @@ private ArgumentListBuilder prepareCommandlineArguments(AbstractBuild<?,?> build
         return createCommandlineArgs(exe, moduleRootRemote, vars, buildParameters);
     }
 
-    private Unity3dInstallation getAndConfigureUnity3dInstallation(BuildListener listener, EnvVars env) throws PerformException, IOException, InterruptedException {
-        Unity3dInstallation ui = getUnity3dInstallation();
+    private Unity3dInstallation getAndConfigureUnity3dInstallation(AbstractBuild<?,?> build, BuildListener listener, EnvVars env) throws PerformException, IOException, InterruptedException {
+        Map<String,String> buildParameters = build.getBuildVariables();
+        Unity3dInstallation ui = getUnity3dInstallation(env, buildParameters);
 
         if(ui==null) {
             throw new PerformException(Messages.Unity3d_NoUnity3dInstallation());
@@ -259,9 +267,20 @@ ArgumentListBuilder createCommandlineArgs(String exe, String moduleRootRemote, E
      * @return the Unity3d to invoke,
      * or null to invoke the default one.
      */
-    private Unity3dInstallation getUnity3dInstallation() {
+    private Unity3dInstallation getUnity3dInstallation(EnvVars env, Map<String,String> buildVariables) {
+        String installationToUse;
+        if (scriptableUnity3dName != null && scriptableUnity3dName.length() > 0) {
+            installationToUse = scriptableUnity3dName;
+            installationToUse = Util.replaceMacro(installationToUse, buildVariables);
+            installationToUse = Util.replaceMacro(installationToUse, env);
+            installationToUse = Util.replaceMacro(installationToUse, buildVariables);
+        }
+        else {
+            installationToUse = unity3dName;
+        }
+
         for( Unity3dInstallation i : getDescriptor().getInstallations() ) {
-            if(unity3dName!=null && unity3dName.equals(i.getName()))
+            if(installationToUse!=null && installationToUse.equals(i.getName()))
                 return i;
         }
         return null;
diff --git a/src/main/resources/org/jenkinsci/plugins/unity3d/Unity3dBuilder/config.jelly b/src/main/resources/org/jenkinsci/plugins/unity3d/Unity3dBuilder/config.jelly
index 802dd5af..956219e3 100644
--- a/src/main/resources/org/jenkinsci/plugins/unity3d/Unity3dBuilder/config.jelly
+++ b/src/main/resources/org/jenkinsci/plugins/unity3d/Unity3dBuilder/config.jelly
@@ -6,6 +6,9 @@
       </j:forEach>
     </select>
   </f:entry>
+  <f:entry title="${%Scriptable Unity3d installation name}" field="scriptableUnity3dName">
+    <f:textbox />
+  </f:entry>
   <f:entry title="${%Editor command line arguments}" field="argLine">
     <f:textbox />
   </f:entry>
diff --git a/src/test/java/org/jenkinsci/plugins/unity3d/Unity3dBuilderTest.java b/src/test/java/org/jenkinsci/plugins/unity3d/Unity3dBuilderTest.java
index 006171be..20c38e75 100644
--- a/src/test/java/org/jenkinsci/plugins/unity3d/Unity3dBuilderTest.java
+++ b/src/test/java/org/jenkinsci/plugins/unity3d/Unity3dBuilderTest.java
@@ -54,7 +54,7 @@ public void buildOSXPlayerAddMissingProjectPath() {
     }
 
     private void ensureCreateCommandlineArgs(List<String> expectedArgs1) {
-        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", argLine, "");
+        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", "", argLine, "");
         ArgumentListBuilder commandlineArgs = builder.createCommandlineArgs(exe, moduleRootRemote, new EnvVars(), new Hashtable<String,String>());
         assertEquals(expectedArgs1, commandlineArgs.toList());
     }
@@ -73,7 +73,7 @@ public void environmentAndBuildVariablesParsing() {
         argLine = "-param1 $param1 -param2 $param2 -projectPath XXXX";
         expectedArgs = asList(exe, "-param1", "value1", "-param2", param2overwrittenValue, "-projectPath", "XXXX");
        
-        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", argLine, "");
+        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", "", argLine, "");
         ArgumentListBuilder commandlineArgs = builder.createCommandlineArgs(exe, moduleRootRemote, vars, buildParameters);
         assertEquals(expectedArgs, commandlineArgs.toList());
         assertEquals("Serialized arg line not modified", argLine, builder.getArgLine());
@@ -90,7 +90,7 @@ public void environmentAndBuildVariablesParsingWithEnvVarsThatReferencesBuildPar
         argLine = "-p1 v1 $ARGS";
         expectedArgs = asList(exe, "-p1", "v1", "-projectPath", "XXXX");
 
-        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", argLine, "");
+        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", "", argLine, "");
         ArgumentListBuilder commandlineArgs = builder.createCommandlineArgs(exe, moduleRootRemote, vars, buildParameters);
         assertEquals(expectedArgs, commandlineArgs.toList());
         assertEquals("Serialized arg line not modified", argLine, builder.getArgLine());
@@ -108,11 +108,11 @@ public void unstableErrorCodesParsing() throws Exception {
     }
 
     private void ensureUnstableReturnCodesParsingWorks(Integer[] expectedResultCodes, String unstableReturnCodes) throws Exception {
-        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", argLine, unstableReturnCodes);
+        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", "", argLine, unstableReturnCodes);
         assertEquals(new HashSet<Integer>(asList(expectedResultCodes)), builder.toUnstableReturnCodesSet());
     }
     private void ensureUnstableReturnCodesParsingFails(String unstableReturnCodes) {
-        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", argLine, unstableReturnCodes);
+        Unity3dBuilder builder = new Unity3dBuilder("Unity 3.5", "", argLine, unstableReturnCodes);
         try {
             builder.toUnstableReturnCodesSet();
             Assert.fail("Expected failure");