PC/Mac standalone build in Unity - Step-by-Step Execution

Concept Flow - PC/Mac standalone build

Open Unity Project

↓

Go to File Menu

↓

Select Build Settings

↓

Choose Platform: PC or Mac

↓

Switch Platform if needed

↓

Set Build Options

↓

Click Build

↓

Save Executable

↓

Build Completes

↓

Run Standalone Application

This flow shows the steps to create a standalone PC or Mac build from a Unity project, starting from opening the project to running the built application.

Execution Sample

Unity

1. Open Unity project
2. File > Build Settings
3. Select PC/Mac platform
4. Click Switch Platform
5. Set build options
6. Click Build
7. Save executable

This sequence builds a standalone executable for PC or Mac from the Unity editor.

Execution Table

Step	Action	Unity Editor State	Result
1	Open Unity project	Project loaded	Ready for build
2	Open Build Settings	Build Settings window open	Can select platform
3	Select PC/Mac platform	Platform selected	Platform ready for build
4	Switch Platform	Platform switched	Assets reimported if needed
5	Set build options	Options set	Build configuration ready
6	Click Build	Build process starts	Build folder requested
7	Save executable	Path selected	Build starts
8	Build completes	Build finished	Executable created
9	Run executable	Standalone app runs	Game launches outside editor

💡 Build completes and standalone executable is ready to run.

Variable Tracker

Variable	Start	After Step 4	After Step 8	Final
Platform	None	PC/Mac selected	PC/Mac build complete	PC/Mac build complete
Build Status	Not started	Switching platform	Build finished	Executable ready
Executable Path	None	None	User selects path	Path saved

Key Moments - 3 Insights

Why do we need to switch platform before building?

Switching platform ensures Unity compiles assets and code correctly for PC or Mac, as shown in execution_table step 4 where assets are reimported.

What happens if we don't select the correct platform?

The build will target the wrong system and may not run properly, because the platform selection in step 3 determines the build target.

Why does Unity ask for a save location during build?

Unity needs to know where to put the executable file, as seen in step 7 where the user selects the path to save the build.

Visual Quiz - 3 Questions

Look at the execution_table, at which step does Unity reimport assets for the new platform?

A Step 3

B Step 4

C Step 6

D Step 8

💡 Hint

Check the 'Unity Editor State' column at step 4 in the execution_table.

According to variable_tracker, what is the 'Build Status' after step 8?

A Not started

B Switching platform

C Build finished

D Executable ready

💡 Hint

Look at the 'Build Status' row under 'After Step 8' in variable_tracker.

If you skip step 4 (Switch Platform), what is likely to happen?

A Build will target the wrong platform

B Build will be faster

C Build will automatically switch platform

D Build will fail to start

💡 Hint

Refer to key_moments about platform switching importance.

Concept Snapshot

Unity PC/Mac Standalone Build:
1. Open Build Settings (File > Build Settings)
2. Select PC or Mac platform
3. Switch Platform to reimport assets
4. Set build options
5. Click Build and choose save location
6. Run the created executable outside Unity

Full Transcript

To create a PC or Mac standalone build in Unity, first open your project. Then go to File menu and select Build Settings. Choose the PC or Mac platform you want to build for. If it is not already selected, click Switch Platform to prepare assets and code for that system. Set any build options you need. Click Build and select where to save the executable file. Unity will compile and create the standalone application. After the build finishes, you can run the executable outside the Unity editor to play your game.

Practice

1. What is the main purpose of creating a PC/Mac standalone build in Unity?

easy

A. To create a separate app that can run outside the Unity editor

B. To edit game scripts directly in Unity

C. To test game performance inside the Unity editor

D. To upload the game directly to the Unity Asset Store

Solution

1. Step 1: Understand what a standalone build is

   A standalone build is a version of your game that runs independently from the Unity editor.

2. Step 2: Identify the purpose of the build

   This build lets players run the game as a normal app on PC or Mac without needing Unity.

3. Final Answer:

   To create a separate app that can run outside the Unity editor -> Option A

4. Quick Check:

   Standalone build = separate app outside Unity [OK]

Hint: Standalone builds run games outside Unity editor [OK]

Common Mistakes:

• Confusing builds with editing scripts
• Thinking builds only test performance inside Unity
• Believing builds upload games to Asset Store

2. Which Unity menu option do you use to start creating a PC/Mac standalone build?

easy

A. File > Build Settings

B. Edit > Preferences

C. Window > Package Manager

D. Assets > Import Package

Solution

1. Step 1: Recall where build options are located

   Unity places build options under the File menu in the Build Settings window.

2. Step 2: Confirm the correct menu path

   File > Build Settings is the correct path to select platform and build the game.

3. Final Answer:

   File > Build Settings -> Option A

4. Quick Check:

   Build Settings menu = File > Build Settings [OK]

Hint: Build Settings is always under File menu [OK]

Common Mistakes:

• Choosing Edit > Preferences which is for editor settings
• Selecting Window > Package Manager which manages packages
• Using Assets > Import Package which imports assets

3. Given this code snippet in Unity, what will happen when you build and run the PC/Mac standalone build?

void Start() {
    Debug.Log("Game started");
}

medium

A. The message "Game started" will appear in the standalone build's console window

B. The message "Game started" will appear in the Unity editor console only

C. The game will crash because Debug.Log is not supported in builds

D. Nothing will happen because Start() is not called in builds

Solution

1. Step 1: Understand Debug.Log behavior in builds

   Debug.Log messages appear in the Unity editor console but are not shown in the standalone build by default.

2. Step 2: Confirm what happens when running the build

   The standalone build runs the Start() method, but its console output is not visible to the user.

3. Final Answer:

   The message "Game started" will appear in the Unity editor console only -> Option B

4. Quick Check:

   Debug.Log visible in editor console, not in build [OK]

Hint: Debug.Log shows only in editor console by default [OK]

Common Mistakes:

• Thinking Debug.Log messages appear in standalone build window
• Believing Debug.Log causes crashes in builds
• Assuming Start() is not called in builds

4. You created a PC standalone build, but when you run it, the game window stays black and does not respond. What is the most likely cause?

medium

A. Your computer does not support Unity editor

B. You did not save the project before building

C. You forgot to add scenes to the Build Settings Scenes In Build list

D. You used Debug.Log in your scripts

Solution

1. Step 1: Identify common build issues

   If no scenes are added to the Build Settings, the build has no content to show, resulting in a black screen.

2. Step 2: Eliminate other options

   Not saving project does not cause black screen; computer support for editor is unrelated; Debug.Log does not cause black screen.

3. Final Answer:

   You forgot to add scenes to the Build Settings Scenes In Build list -> Option C

4. Quick Check:

   Missing scenes in build = black screen [OK]

Hint: Always add scenes to Build Settings before building [OK]

Common Mistakes:

• Assuming saving project fixes black screen
• Thinking computer must run Unity editor to run build
• Blaming Debug.Log for black screen

5. You want to create a PC standalone build that runs only in fullscreen mode and uses a specific resolution of 1920x1080. Which code snippet should you add to your game to enforce this when the build starts?

hard

A. void Update() { Screen.SetResolution(1920, 1080, false); }

B. void Start() { Application.fullScreen = false; Screen.SetResolution(1920, 1080, false); }

C. void Awake() { Screen.fullScreenMode = FullScreenMode.Windowed; }

D. void Start() { Screen.SetResolution(1920, 1080, true); }

Solution

1. Step 1: Understand how to set resolution and fullscreen

   Screen.SetResolution(width, height, fullscreen) sets resolution and fullscreen mode at runtime.

2. Step 2: Choose the correct method and parameters

   void Start() { Screen.SetResolution(1920, 1080, true); } sets 1920x1080 resolution and enables fullscreen in Start(), which runs once at game start.

3. Step 3: Eliminate incorrect options

   void Start() { Application.fullScreen = false; Screen.SetResolution(1920, 1080, false); } disables fullscreen; void Awake() { Screen.fullScreenMode = FullScreenMode.Windowed; } sets windowed mode; void Update() { Screen.SetResolution(1920, 1080, false); } sets resolution every frame, which is inefficient.

4. Final Answer:

   void Start() { Screen.SetResolution(1920, 1080, true); } -> Option D

5. Quick Check:

   SetResolution with fullscreen true in Start() [OK]

Hint: Use Screen.SetResolution(width, height, true) in Start() [OK]

Common Mistakes:

• Setting fullscreen false by mistake
• Changing resolution every frame in Update()
• Using wrong fullscreen mode property