PC 用にMac をセカンドモニターにする完全ガイド

Have you ever wanted to use Steam’s Remote Play feature to continue your favorite game while you’re away from home — only to find that the connection keeps failing? Or tried playing with friends through Steam Remote Play Together, but ended up tangled in frustrating technical problems?

Steam Link is Steam’s official free game streaming service. It allows you to stream your PC games to other devices — such as phones, tablets, laptops, or even VR headsets. While it’s a convenient feature, many users still face unstable connections, blurry graphics, or high input lag. Among these, failed Remote Play Together connections are one of the most common frustrations.

Don’t worry!
This guide will walk you through the correct setup steps for Steam Remote Play and introduce alternative remote gaming solutions. Whether you want to enjoy gaming anytime, anywhere, or share the fun with friends, this article will help you make it happen. Let’s dive into the most effective methods!

More to Explore

• How To Control Remote PC Games With A Local Gamepad?

• How to Play Android Games on iPhone: Complete Guide for Mobile Gamers in 2025

Steam Remote Play: 2 Best Ways to Enjoy It Anywhere

If you want to experience your Steam library remotely anytime, anywhere, here are two main options:

1. Use Steam Remote Play

Steam’s official Remote Play feature is the most direct option. It’s free and integrates perfectly with the Steam platform. As long as both devices are on the same network, you can connect quickly with a few simple steps.

However, it has a key limitation — it’s highly dependent on your network environment. When connecting across different networks, you may encounter lag and reduced visual quality.

2. Use DeskIn — A Professional Remote Gaming Solution

As a professional remote desktop software, DeskIn delivers a smoother, more reliable gaming experience than Steam’s built-in streaming.

It provides stable cross-network connectivity through over 200 global relay nodes, ensuring fast and secure links. Powered by ZeroSync® and RTC real-time communication, DeskIn maintains fluid visuals and input even across long distances — no need to be on the same Wi-Fi.

In addition, DeskIn offers advanced image optimization to maintain sharp visuals under low bandwidth (up to 4K 60FPS or 2K 144FPS). Most importantly, DeskIn isn’t limited to Steam — it supports all PC games and applications, giving you maximum flexibility and freedom.

📥 Click here to download DeskIn

1. Using Steam Remote Play

Steam Remote Play is an official feature within the Steam ecosystem, giving it excellent compatibility and integration. For players with large Steam libraries, it’s the simplest and most direct way to play remotely — completely free of charge.

It syncs your Steam account, game progress, and achievements seamlessly, and supports Windows, macOS, Linux, and mobile devices. With just a few steps, you can start streaming your PC games remotely.

Requirements Before You Start

1. Both devices must be connected to the same network, ideally with a stable Wi-Fi speed of 5 Mbps or higher.

2. Both devices must have Steam installed and logged into the same account, and the host PC must be powered on and running Steam.

3. Make sure firewall and router settings allow Steam connections for smooth communication between devices.

How to Use Steam Link for Remote Play

Step 1: Install Steam and Log In

Make sure both your host (gaming) PC and client device have Steam installed and are logged into the same account. Keep the host computer powered on and running Steam.

Step 2: Enable “Remote Play” on Your Host Computer

Open Steam, click “Steam” → “Settings” → “Remote Play”, and check “Enable Remote Play.” Click OK to save your settings.

Step 3: Pair Your Devices
Install the Steam Link app on your client device (phone, tablet, or another computer) and connect to the same Wi-Fi network. When prompted, enter the security code shown on your client device into the host PC to complete pairing.

Then, select a game from your library — Steam will automatically connect, and you can start playing as if you were on your main computer.

Despite its convenience, Steam Remote Play has some clear drawbacks:

• Network-dependent: Unstable Wi-Fi (e.g. 2.4GHz) can cause blurry visuals, lag, and delayed input.

• Connection instability: Long sessions may lead to disconnections, audio sync issues, or stuttering.

• Same-network restriction: Steam Link only works within the same local network — remote access from outside isn’t supported.

• Limited mobile experience: Few customization options, poor button mapping, and less flexible controls on mobile.

2. Using DeskIn for Remote Steam Gaming — Simple & Smooth

If you’ve faced any of the above issues with Steam, DeskIn is the better solution. Designed for high-performance remote gaming, DeskIn offers smoother visuals, more stable connections, and lower latency than Steam Remote Play.

Whether you’re commuting, sitting at a café, or traveling, you can easily play your favorite PC games like MapleStory, GTA V, Lineage, Romance of the Three Kingdoms, or Monster Hunter — all in full quality and without distance limits.

Why DeskIn Is the Best Choice for Remote Steam Gaming

• Superior Network Adaptability: Smart network optimization across 200+ global nodes ensures stable cross-region connections, even under poor network conditions — far more reliable than Steam Remote Play.

• Professional Image Optimization: Keeps graphics crisp and smooth even at lower bandwidths, ideal for visually demanding games.

• Ultra-Low Latency: Proprietary low-latency engine with RTC technology delivers response times as low as 40ms, perfect for competitive and fast-paced games.

• Smart Custom Controls: Map complex keyboard and mouse inputs into simple touch gestures or combo buttons.

• Controller Support: Fully compatible with most wired and wireless gamepads for better control.

• 3D View Mode: Automatically activates immersive 3D perspective in Game Mode.

• Remote Power-On: Power up your PC remotely even if it’s turned off — no need for standby power.

• Cross-Platform Compatibility: Supports Windows, macOS, iOS, and Android, so you can play from any device.

• Bonus Features: Includes mobile-to-PC screen projection, screen mirroring, extended display, and voice chat for versatile remote use.

How to Use DeskIn for Remote Steam Gaming (Quick Setup)

Step 1: Download DeskIn

Install DeskIn on both your local and remote devices. If you’re a new user, verify your email, then enter your PC’s device code and password in DeskIn to connect successfully.

📥 Click here to download DeskIn

Step 2: Play Steam Games on Your Phone

Once connected, you can control your PC with DeskIn’s virtual mouse or touch controls.

DeskIn supports both pointer mode (with left and right mouse buttons) and touch mode (for tap-based control). The connection is smooth, with responsive cursor movement and minimal delay.

Common Steam Remote Play FAQs

Q: How do I connect to Steam remotely?
Use Steam Link to stream your games from your main PC to another device. For more stable cross-network connections, use DeskIn, which supports global nodes and low-latency streaming.

Q: Can I use one Steam account on two computers?
Yes, you can log into multiple computers with one Steam account — but only one can play a game at a time. To play remotely, use DeskIn to control your main PC and continue your session from another device.

Q: How can I play Steam games on my phone?
You can use the Steam Link app to stream games to your phone.
For smoother performance and customizable controls, DeskIn is recommended — it works perfectly on both iOS and Android for playing PC games remotely.

Conclusion

With the two methods introduced above, remote Steam gaming is now easier than ever.
Steam Remote Play is completely free and ideal for users playing within the same home network.
DeskIn, on the other hand, offers a more stable and professional-grade experience for cross-network play, especially if you value image quality or frequently game on the go.

Your choice depends on your needs:

• For occasional in-home streaming, Steam Remote Play is sufficient.

• For a seamless, portable gaming experience anywhere, DeskIn is the ultimate solution.

📥 Click here to download DeskIn and start your remote gaming journey — bring your entire Steam library wherever you go, without limits of time or place!

Ever wanted to keep playing your PC games while you’re away from home — during a break, on a trip, or your daily commute — only to find it frustratingly difficult to connect?

Whether you’re using a phone or tablet, you can remotely control your home computer anytime and play Steam, Epic, or Windows-exclusive games with full freedom. Don’t let distance interrupt your gaming experience!

This article walks you through three practical remote gaming solutions — from high-quality, low-latency performance with DeskIn, to game-focused streaming with Parsec, and even cloud gaming services. Step-by-step, you’ll learn how to easily set up and play your favorite games remotely, turning your gaming dream into reality.

Related Reading

• How To Control Remote PC Games With A Local Gamepad?

• How to Play Android Games on iPhone: Complete Guide for Mobile Gamers in 2025

Method 1: Play Remotely with DeskIn — High Quality, Low Latency

Among many remote access options, DeskIn stands out for its ultra-low latency and exceptionally smooth performance. Unlike business-oriented tools such as TeamViewer or AnyDesk, DeskIn is built specifically for gaming, ensuring every command you make on your phone feels as responsive as playing on your local PC.

Its dedicated streaming engine, powered by ZeroSync® and RTC (Real-Time Communication) technology, can reduce latency to ≤40 milliseconds, delivering seamless performance whether you’re launching a finishing move against a boss or teaming up with friends online.

DeskIn deeply understands gamers’ needs. It provides a complete game control solution — you can customize button layouts on mobile, perform complex combos easily, and connect external controllers compatible with most devices. The built-in Game Mode perfectly maps keyboard and mouse actions to your phone and automatically enables 3D viewing, giving you a full, immersive experience even on a mobile screen.

DeskIn also supports PC-to-PC remote gaming, letting you continue your progress from another computer — perfect for playing at the office or using a Mac to enjoy Windows-exclusive titles. It delivers a professional-grade gaming experience that ordinary remote desktop software simply can’t match.

📥 Click here to download DeskIn

DeskIn: The Top Choice for Remote Gaming

• Ultra HD Graphics: Up to 4K 60FPS / 2K 144FPS streaming with 4:4:4 lossless color sampling for rich, vivid visuals.

• Smooth Gameplay: Industry-leading <40ms latency keeps visuals and controls perfectly in sync — no lag, even in fast-paced games.

• Custom Game Console: Personalize virtual buttons, resize freely, and create your ideal mobile gamepad for complex combos.

• Cross-Platform Support: Fully compatible with Windows, macOS, iOS, and Android — play anywhere, anytime.

• 3D Game Mode: Automatically activates immersive 3D perspective for a more realistic experience.

• External Controller Support: Works flawlessly with most controllers on the market, whether wired or wireless.

• Screen Mirroring & Streaming: Mirror your phone screen back to your PC for remote gameplay or live streaming — flexible and convenient.

After review DeskIn’s advantages, let’s walk through the simple setup process to help you start playing your PC games remotely on your phone.

Step 1: Install DeskIn

Install DeskIn on both your host computer and your mobile device. If it’s your first time, register a free account and sign in.
An account keeps your connections secure, makes managing multiple devices easier, and ensures smoother performance.

📥 Click here to download DeskIn

Step 2: Connect Your Phone and Computer

Open DeskIn on both devices. On your phone, enter the connection password (you can customize it for convenience, e.g., “1234567c”).
If both devices are logged into the same account, you can connect instantly without entering a password.

Tap “Connect” — and within seconds, you’re ready to play.

Step 3: Start Playing Remotely

Once connected, you can control your PC directly from your phone’s touchscreen and play any game in your Steam or Epic library — anytime, anywhere.
Whether it’s MapleStory, Lineage, GTA V, or Monster Hunter, you’ll experience the same smooth, full gameplay as if you were on your desktop.

📥 Click here to download DeskIn

Method 2: Use Parsec

Parsec is another excellent remote desktop solution for gamers. It uses advanced hardware-accelerated encoding, delivering near-native gaming performance with latency as low as a few milliseconds.

Compared with standard remote software, Parsec is optimized for gaming — supporting 60FPS high-frame-rate streaming and easy setup. From AAA titles to indie favorites, Parsec lets you enjoy full PC gaming freedom on your devices.

However, the mobile version currently supports only Android, not iOS. Android users can connect via phone or a compatible controller for low-latency play, but Parsec doesn’t offer mobile-side custom controls — making it slightly less flexible than DeskIn.

The following steps focus on using Parsec for PC-to-PC gaming.

Step 1: Install Parsec

Download and install Parsec on both computers, create an account, and sign in on both devices.

Step 2: Set Up Host and Client Computers

• Open Parsec and log in.

• On your main (gaming) computer, click the blue “Share” button to generate a connection link.

• Copy and send the link to your other computer.

• On the client PC, paste the link into the box at the bottom right and click “Join.”

Step 3: Start Playing

Once connected, your desktop will appear, and you can start playing immediately — just like gaming locally.

Method 3: Cloud Gaming Services — Play Without a High-End PC

If you don’t own a powerful gaming computer or want to reduce hardware costs, cloud gaming is a great alternative.
Services like GeForce NOW, Xbox Cloud Gaming, or Steam Cloud Play let you stream games from cloud servers directly to your phone, tablet, or laptop — with no need for high-end hardware.

Benefits

• Easy Setup: Install the official app or log in via browser to start playing instantly.

• Play Anywhere: Enjoy PC or console games at home, while commuting, or at a friend’s place.

• Cost-Effective: No need for expensive GPUs or PCs — enjoy AAA games affordably.

• Auto Updates & Cloud Saves: Games run and save progress in the cloud automatically.

Drawbacks

• Limited game libraries — not all titles are available.

• Most services require monthly subscriptions.

• High-speed internet is a must to maintain quality.

• Limited MOD/customization support.

• Some platforms are not yet available in Asia.

If you prefer full control over your own PC while keeping flexibility for both work and play, DeskIn offers a more versatile, subscription-free solution.

Step 1: Sign Up and Log In

Choose your preferred cloud gaming service, create an account, and install its app — or log in directly through your browser.

Step 2: Choose a Game and Start Streaming

Select your game and click “Play.” The game will stream directly to your device.

Step 3: Customize Controls

Most cloud platforms support on-screen buttons or external controllers for complete control on mobile or tablet.

Whether you want to continue your Steam progress on the go or enjoy a AAA title on your laptop at a café, DeskIn lets you play freely — without distance or hardware limits.

FAQ

How can I play PC games remotely on my phone?

Install remote desktop software on your PC (host) and its companion app on your phone (client). The app streams your PC’s display and controls in real time.
The top recommendation is DeskIn, optimized for gaming with high-quality visuals, near-zero latency, and customizable touch controls for a smooth mobile gaming experience.

What’s the best option for iOS users?

Parsec doesn’t support iOS, so iPhone and iPad users should choose DeskIn — fully compatible with iOS, offering low latency, HD streaming, and virtual gamepad customization.

Which remote software is best for gaming?

When choosing a remote gaming tool, consider latency, video quality, network adaptability, and hardware compatibility.
DeskIn is highly recommended — built for gaming, it delivers zero-lag, high-quality streaming with stable performance even under complex network conditions.

Conclusion

Remote gaming has evolved to offer a truly smooth, cross-device experience.
Whether you want to continue your Steam progress during a commute or play a Windows-exclusive title on your Mac at a friend’s place, the solutions above make it possible.

Among all options, DeskIn is the top pick. Its gaming-optimized zero-latency technology, 4:4:4 color accuracy, and customizable controls solve the key challenges of mobile remote play.
Compared to other tools, DeskIn is easier to set up and maintains outstanding stability — ensuring every action feels instant and natural.

Download DeskIn now and start your new remote gaming experience — free from distance limits, free to enjoy your full PC game library anytime, anywhere.

📥 Click here to download DeskIn

In recent years, data breaches have become increasingly alarming. Just last year alone, over 1 billion records were stolen by hackers — a truly staggering number. What’s even more concerning is that remote control attacks on computers are now more frequent than ever.

According to a study by Check Point Research, between August 2024 and January 2025, the top three targets for cyberattacks in Taiwan were hardware suppliers, government and military agencies, and the manufacturing industry. Whether you’re an individual user or a business, it’s time to take computer security seriously.

If your computer has been acting strangely — for example, your mouse moves on its own, files are mysteriously modified, or the system suddenly slows down — that could be a sign of a hacker intrusion. Sometimes, a remote desktop program you used before may still be secretly running in the background. Once your system is under malicious remote control, not only can your personal data be stolen, but your computer might also be used as a tool to attack others.

This article provides a full guide on how to detect, block, and prevent such threats — helping you regain control of your computer.

Related Reading:

• How To Tell If Someone Is Accessing Your iPhone Remotely

• 4 Best Parental Control App 2025. What Should Pay Attention To When Using.

How to Detect If Your Computer Is Being Remotely Controlled

If you suspect that your computer is being accessed remotely, the first step is to learn how to detect it. Fortunately, you can use built-in system tools and commands to quickly check if someone is secretly accessing your device.

Detect Remote Control on Windows

Windows provides several built-in tools for system inspection. The following three methods can help you identify unusual remote connections quickly.

Method 1: Check Logged-In Users via Command Prompt

1. Press Win + R to open the Run dialog box, type cmd, and hit Enter.

2. In the Command Prompt window, enter the following commands:

Code block

1 quser

2 query user

3. Review the results — if you see unfamiliar accounts currently logged in, it may indicate that your computer is being remotely accessed.

Method 2: Check Active Users via Task Manager
This is a straightforward and real-time way to view all logged-in users.

1. Press Ctrl + Shift + Esc to open Task Manager.

2. Go to the Users tab.

3. Review the list — under normal circumstances, you should only see your current account.

Method 3: Track Login History via Event Viewer
Event Viewer provides detailed system activity logs, making it perfect for tracing login behavior.

1. Search for and open Event Viewer from the Start menu.

2. Go to Windows Logs > Security.

3. Look for Event ID 4624 (Successful Logon) and check for suspicious remote login entries.

Detect Remote Control on macOS

While macOS uses a different approach, the underlying logic is the same — spotting signs of unauthorized access.

Method 1: Check Screen Sharing Settings

1. Go to System Preferences > Sharing.

2. Verify that Screen Sharing and Remote Login are turned off.

3. If these services are enabled without your knowledge, your system might be compromised — disable them immediately.

Method 2: Monitor Network Connections
Use the built-in Activity Monitor to observe network usage and identify any unusual activity.

How to Block Remote Control on Your Computer

Once you’ve confirmed that your computer is being remotely controlled, it’s time for emergency action. Whether you use Windows or Mac, these methods can help you cut off the connection and stop further control.

Stop Remote Access on Windows

Windows’ built-in Remote Desktop and Remote Assistance features are often exploited by hackers. Disabling them is the first step toward stronger protection.

Method 1: Disable Remote Desktop and Remote Assistance
This is the most direct way to block unauthorized access.

1. Press Win + R, type control, and hit Enter.

2. Go to System and Security > System > Remote settings.

3. In the Remote tab, uncheck Allow Remote Assistance connections to this computer.

4. Select Don’t allow remote connections to this computer and click OK.

Method 2: Adjust Windows Firewall Settings
Even after disabling remote features, you can add extra protection via the firewall.

1. Open Windows Defender Firewall.

2. Click Allow an app or feature through Windows Defender Firewall.

3. Click Change settings, then uncheck Remote Assistance and Remote Desktop.

4. Save your changes.

Method 3: Disable Unnecessary Remote Services
Use Services Manager to completely disable remote-related background services.

1. Press Win + R, type services.msc, and hit Enter.

2. Locate and disable the following services:

• Remote Desktop Services

• Remote Registry

• Telnet (if enabled)

3. Set their startup type to Disabled.

Stop Remote Access on Mac

macOS manages remote access centrally through System Preferences.

Method 1: Disable Remote Access Features

1. Go to System Preferences > Sharing.

2. Uncheck the following:

• Screen Sharing

• Remote Login

• Remote Management

• Remote Apple Events

3. Ensure all remote access options are turned off.

Method 2: Check and Remove Unknown Apps
Some remote control apps may be installed without your consent.

1. Go to the Applications folder.

2. Look for unfamiliar remote control software — such as TeamViewer, AnyDesk, or Chrome Remote Desktop.

3. If you didn’t install them yourself, remove them immediately.

How to Prevent Future Remote Control Attacks

Emergency actions alone aren’t enough — long-term protection is key. Building a multi-layered security strategy will greatly reduce your risk of remote access attacks.

Strengthen Authentication

• Use complex and unique passwords with uppercase, lowercase, numbers, and symbols.

• Enable two-factor authentication (2FA).

• Change passwords regularly and avoid using the same one across multiple services.

Manage Updates and Patches

In 2024, hackers exploited 768 vulnerabilities with CVE numbers — a 20% increase from 2023. Keeping your system updated is crucial.

• Enable automatic system updates.

• Regularly install security patches.

• Keep your antivirus definitions up to date.

Strengthen Network Security

• Use a VPN to encrypt your connection, especially on public Wi-Fi.

• Avoid unsafe public networks.

• Change your router’s default password and review settings regularly.

• Install reputable antivirus software with real-time protection.

• Run full system scans regularly.

• Use secure remote desktop software with encrypted connections.

Use DeskIn for Secure Remote Access

If you truly need to access your computer remotely, choose your software carefully. Many remote tools pose security risks — so only use those with strong protection features.

Among many options, DeskIn stands out for its solid security foundation. It uses advanced AES-256 end-to-end encryption to protect data transfer, along with two-factor authentication to ensure only authorized users can connect. Compared with tools known for security vulnerabilities, DeskIn offers peace of mind.

DeskIn’s Key Security Features:

• End-to-end AES-256 Encryption: Ensures safe data transmission, preventing eavesdropping or man-in-the-middle attacks.

• Multi-factor Authentication: Supports temporary passwords, security codes, or 2FA for flexible security levels.

• Whitelist/Blacklist Access Control: Manage exactly which users or devices can connect.

• Privacy Screen and Auto-Lock: Automatically activates a privacy screen during remote sessions and locks the screen afterward.

• Account Protection: Automatically locks DeskIn when unauthorized accounts attempt to connect.

How to Safely Use DeskIn for Remote Access

1. Download DeskIn only from the official website.

2. Register and set a strong password, then enable 2FA.

3. Configure access permissions and security settings based on your needs.

4. Use a secure connection code or account binding method for remote access.

Conclusion

When it comes to cybersecurity, habits matter most. There’s no permanent solution — it requires ongoing attention and regular updates. Staying vigilant and checking your system frequently can help you enjoy digital convenience without worrying about data leaks or hacking.

If you do need remote access for work, choosing the right tool is crucial. Software like DeskIn, with comprehensive security mechanisms, allows you to work efficiently while minimizing the risk of being remotely controlled.

With the right mindset and reliable tools, remote technology can be your ally — not a security threat.

 📥 Want to give it a try? DeskIn offers a free version — enterprise-grade encryption, safe and secure to use!