!["2024 Approved Superior Console Emulation Best PS1 Games for Your PC"](https://www.lifewire.com/thmb/reiA5q9g7RC-d0IhGypCqLpbhbY=/400x300/filters:no_upscale():max_bytes(150000):strip_icc():format(webp)/how-to-turn-on-microphone-on-an-android-phone-5184530-372d01459baa44978ef72242d007992a.jpg)
"2024 Approved Superior Console Emulation Best PS1 Games for Your PC"
![](/images/site-logo.png)
Superior Console Emulation: Best PS1 Games for Your PC
Sony released its first standalone console for video games, Playstation1 (nicknamed PS1), in 2001. The PlayStation 2 was released to compete with Nintendo’s SNES, which ruled the console video-gaming market for years. Sony launched its first-ever gaming console after years of reorganizations and partnerships, including ones with Nintendo. The console was immensely successful until its successor replaced it.
With the PS1 emulator for PC, you can play PlayStation 1 games. Play your favorite PlayStation games on your computer with the original BIOS, your own BIOS, and your own games. Listed below, you will find some of the best PS1 emulators that will allow you to relive those days. If you have an original game disk, even better. All you need is a copy of the disc image.
1.RetroArch Emulator
This emulator offers a variety of solutions and is just an emulator for playing PS1 video games, making it one of the best ps 1 emulators and most complete emulators. The first stable version was released in the year 2020, almost a decade after its launch in the year 2010. On top of all that, it is free, open-source, and can emulate gaming consoles, media players, game engines, and others. That makes it a very reliable emulator.
Features:
- Multiple platforms are supported, such as Windows, Linux, and macOS.
- As a fast, portable, lightweight emulator, RetroArch requires no adjustments or very little tweaking to run and function properly.
- In terms of game-saving, refresh rate, game loading, and screen resolution, it is one of the best PS1 emulators out there.
2.Matsu Emulator
There is also the Matsu Emulator, which is based on the PSX/PSOne platform. Despite being one of the best emulators in the world, it is also quite stable and safe. There are more and more features being added to the software. In contrast, the simulator works well but the free version has heavy advertising. If you purchase the pro edition in the game, you will be able to remove the advertisements. If you would like to pay someone for an emulator, we would recommend ePSXe or FPse. You will find Matsu Emulator to be a reliable and efficient program if you can endure its commercials.
Features:
- It features an on-screen virtual keypad as well as support for gamepads.
- The sound quality is excellent.
- As well as fast-forwarding, it also supports rewinding.
- Up to 16 slots can be used by the Matsu emulator.
3.Mednafen
Games are run using OpenGL and SDL in Mednafen, a multi-system emulator. Users can remap hotkeys and virtual system inputs to joysticks or keyboards, or both simultaneously. Rewinding in real-time and saving at multiple states are supported by the emulator. It also allows you to take screenshots instantly. Pictures are saved as PNG files.
The majority of Mednafen’s cores are portions from other applications, but some are originals. In terms of quality, precision, and compatibility, its original cores (built to run PS1, Sega Saturn, and Nintendo Virtual Boy games) are noteworthy. The command-line interface of Mednafen is easy to use. Additionally, it supports several third-party GUIs to make configuration even easier. For example, MedLaunch offers a dynamic games library with DAT lookup and online scraping and the ability to configure controllers.
Features:
- Multi-platform emulation allows games to be played on PlayStation One as well as other gaming consoles.
- Compatible with most gaming consoles, including the PlayStation One, it is very accurate in its compatibility.
- Providing you have the right PlayStation BIOS and ROM, it can be set up quickly and easily.
- The Mednafen emulator supports the use of game cheats.
4.ePSXe
You can play PlayStation games on your Android phone and PC using ePSXe (short for enhanced PSX emulator). A wide range of devices are supported, making it a fast, accurate, and highly versatile tool. Within seconds, you can start playing games after configuring the program. It is just a matter of copying the BIOS file from your console, setting up the controller, and customizing the keys.
Gameplay usually runs smoothly without much configuration and trial-and-error. When your game doesn’t load or you experience lags, you can fix it by applying an ePSXe patch (in .ppf format).
Features:
- This software provides a close analogous experience to playing video games on the PlayStation One itself, but on a personal computer.
- Its controller options can be tailored to meet your needs.
- It allows you to pause, resume, and save your gameplay from the point you last left it.
- Dual-player and split-screen modes are available. Additionally, you can also use external gamepads to play your favorite video games.
5.Biz Hawk
There are a lot of tools for speedrunning and emulation testing. In addition to running games from a variety of classic consoles, BizHawk is an open-source multi-system emulator. It also offers a feature to record audio and video in-game.
In addition to the PSP, the platform can also support the Nintendo 64, Game Gear, SEGA Master System, ZX Spectrum, Neo Geo Pocket, NES, Commodore 64, and many more. By allowing you to slow down or even pause the emulation, BizHawk is unique in that it allows you to advance it frame by frame. With a debugging system like this, you can analyze emulation down to the millimeter and beat time records or high scores by making the most of your video game emulation.
Features:
- Support for full-screen mode
- Fire controls that operate automatically or quickly
- There are an infinite number of named savestates
- Stepping, rewinding, and speed control.
Final Verdict
If you were looking for a PlayStation 1 emulator that could provide you with the same experience as the console, we have shared a list of the 5 best ps1 emulators. Keep in mind that this is the list of ps1 emulators for Pc and works with different operating systems. Choosing the right PS1 emulator is as simple as viewing the list of games it supports to find your childhood favorites, downloading and installing it to begin your journey.
For Win 7 or later (64-bit)
For macOS 10.12 or later
This emulator offers a variety of solutions and is just an emulator for playing PS1 video games, making it one of the best ps 1 emulators and most complete emulators. The first stable version was released in the year 2020, almost a decade after its launch in the year 2010. On top of all that, it is free, open-source, and can emulate gaming consoles, media players, game engines, and others. That makes it a very reliable emulator.
Features:
- Multiple platforms are supported, such as Windows, Linux, and macOS.
- As a fast, portable, lightweight emulator, RetroArch requires no adjustments or very little tweaking to run and function properly.
- In terms of game-saving, refresh rate, game loading, and screen resolution, it is one of the best PS1 emulators out there.
2.Matsu Emulator
There is also the Matsu Emulator, which is based on the PSX/PSOne platform. Despite being one of the best emulators in the world, it is also quite stable and safe. There are more and more features being added to the software. In contrast, the simulator works well but the free version has heavy advertising. If you purchase the pro edition in the game, you will be able to remove the advertisements. If you would like to pay someone for an emulator, we would recommend ePSXe or FPse. You will find Matsu Emulator to be a reliable and efficient program if you can endure its commercials.
Features:
- It features an on-screen virtual keypad as well as support for gamepads.
- The sound quality is excellent.
- As well as fast-forwarding, it also supports rewinding.
- Up to 16 slots can be used by the Matsu emulator.
3.Mednafen
Games are run using OpenGL and SDL in Mednafen, a multi-system emulator. Users can remap hotkeys and virtual system inputs to joysticks or keyboards, or both simultaneously. Rewinding in real-time and saving at multiple states are supported by the emulator. It also allows you to take screenshots instantly. Pictures are saved as PNG files.
The majority of Mednafen’s cores are portions from other applications, but some are originals. In terms of quality, precision, and compatibility, its original cores (built to run PS1, Sega Saturn, and Nintendo Virtual Boy games) are noteworthy. The command-line interface of Mednafen is easy to use. Additionally, it supports several third-party GUIs to make configuration even easier. For example, MedLaunch offers a dynamic games library with DAT lookup and online scraping and the ability to configure controllers.
Features:
- Multi-platform emulation allows games to be played on PlayStation One as well as other gaming consoles.
- Compatible with most gaming consoles, including the PlayStation One, it is very accurate in its compatibility.
- Providing you have the right PlayStation BIOS and ROM, it can be set up quickly and easily.
- The Mednafen emulator supports the use of game cheats.
4.ePSXe
You can play PlayStation games on your Android phone and PC using ePSXe (short for enhanced PSX emulator). A wide range of devices are supported, making it a fast, accurate, and highly versatile tool. Within seconds, you can start playing games after configuring the program. It is just a matter of copying the BIOS file from your console, setting up the controller, and customizing the keys.
Gameplay usually runs smoothly without much configuration and trial-and-error. When your game doesn’t load or you experience lags, you can fix it by applying an ePSXe patch (in .ppf format).
Features:
- This software provides a close analogous experience to playing video games on the PlayStation One itself, but on a personal computer.
- Its controller options can be tailored to meet your needs.
- It allows you to pause, resume, and save your gameplay from the point you last left it.
- Dual-player and split-screen modes are available. Additionally, you can also use external gamepads to play your favorite video games.
5.Biz Hawk
There are a lot of tools for speedrunning and emulation testing. In addition to running games from a variety of classic consoles, BizHawk is an open-source multi-system emulator. It also offers a feature to record audio and video in-game.
In addition to the PSP, the platform can also support the Nintendo 64, Game Gear, SEGA Master System, ZX Spectrum, Neo Geo Pocket, NES, Commodore 64, and many more. By allowing you to slow down or even pause the emulation, BizHawk is unique in that it allows you to advance it frame by frame. With a debugging system like this, you can analyze emulation down to the millimeter and beat time records or high scores by making the most of your video game emulation.
Features:
- Support for full-screen mode
- Fire controls that operate automatically or quickly
- There are an infinite number of named savestates
- Stepping, rewinding, and speed control.
Final Verdict
If you were looking for a PlayStation 1 emulator that could provide you with the same experience as the console, we have shared a list of the 5 best ps1 emulators. Keep in mind that this is the list of ps1 emulators for Pc and works with different operating systems. Choosing the right PS1 emulator is as simple as viewing the list of games it supports to find your childhood favorites, downloading and installing it to begin your journey.
For Win 7 or later (64-bit)
For macOS 10.12 or later
This emulator offers a variety of solutions and is just an emulator for playing PS1 video games, making it one of the best ps 1 emulators and most complete emulators. The first stable version was released in the year 2020, almost a decade after its launch in the year 2010. On top of all that, it is free, open-source, and can emulate gaming consoles, media players, game engines, and others. That makes it a very reliable emulator.
Features:
- Multiple platforms are supported, such as Windows, Linux, and macOS.
- As a fast, portable, lightweight emulator, RetroArch requires no adjustments or very little tweaking to run and function properly.
- In terms of game-saving, refresh rate, game loading, and screen resolution, it is one of the best PS1 emulators out there.
2.Matsu Emulator
There is also the Matsu Emulator, which is based on the PSX/PSOne platform. Despite being one of the best emulators in the world, it is also quite stable and safe. There are more and more features being added to the software. In contrast, the simulator works well but the free version has heavy advertising. If you purchase the pro edition in the game, you will be able to remove the advertisements. If you would like to pay someone for an emulator, we would recommend ePSXe or FPse. You will find Matsu Emulator to be a reliable and efficient program if you can endure its commercials.
Features:
- It features an on-screen virtual keypad as well as support for gamepads.
- The sound quality is excellent.
- As well as fast-forwarding, it also supports rewinding.
- Up to 16 slots can be used by the Matsu emulator.
3.Mednafen
Games are run using OpenGL and SDL in Mednafen, a multi-system emulator. Users can remap hotkeys and virtual system inputs to joysticks or keyboards, or both simultaneously. Rewinding in real-time and saving at multiple states are supported by the emulator. It also allows you to take screenshots instantly. Pictures are saved as PNG files.
The majority of Mednafen’s cores are portions from other applications, but some are originals. In terms of quality, precision, and compatibility, its original cores (built to run PS1, Sega Saturn, and Nintendo Virtual Boy games) are noteworthy. The command-line interface of Mednafen is easy to use. Additionally, it supports several third-party GUIs to make configuration even easier. For example, MedLaunch offers a dynamic games library with DAT lookup and online scraping and the ability to configure controllers.
Features:
- Multi-platform emulation allows games to be played on PlayStation One as well as other gaming consoles.
- Compatible with most gaming consoles, including the PlayStation One, it is very accurate in its compatibility.
- Providing you have the right PlayStation BIOS and ROM, it can be set up quickly and easily.
- The Mednafen emulator supports the use of game cheats.
4.ePSXe
You can play PlayStation games on your Android phone and PC using ePSXe (short for enhanced PSX emulator). A wide range of devices are supported, making it a fast, accurate, and highly versatile tool. Within seconds, you can start playing games after configuring the program. It is just a matter of copying the BIOS file from your console, setting up the controller, and customizing the keys.
Gameplay usually runs smoothly without much configuration and trial-and-error. When your game doesn’t load or you experience lags, you can fix it by applying an ePSXe patch (in .ppf format).
Features:
- This software provides a close analogous experience to playing video games on the PlayStation One itself, but on a personal computer.
- Its controller options can be tailored to meet your needs.
- It allows you to pause, resume, and save your gameplay from the point you last left it.
- Dual-player and split-screen modes are available. Additionally, you can also use external gamepads to play your favorite video games.
5.Biz Hawk
There are a lot of tools for speedrunning and emulation testing. In addition to running games from a variety of classic consoles, BizHawk is an open-source multi-system emulator. It also offers a feature to record audio and video in-game.
In addition to the PSP, the platform can also support the Nintendo 64, Game Gear, SEGA Master System, ZX Spectrum, Neo Geo Pocket, NES, Commodore 64, and many more. By allowing you to slow down or even pause the emulation, BizHawk is unique in that it allows you to advance it frame by frame. With a debugging system like this, you can analyze emulation down to the millimeter and beat time records or high scores by making the most of your video game emulation.
Features:
- Support for full-screen mode
- Fire controls that operate automatically or quickly
- There are an infinite number of named savestates
- Stepping, rewinding, and speed control.
Final Verdict
If you were looking for a PlayStation 1 emulator that could provide you with the same experience as the console, we have shared a list of the 5 best ps1 emulators. Keep in mind that this is the list of ps1 emulators for Pc and works with different operating systems. Choosing the right PS1 emulator is as simple as viewing the list of games it supports to find your childhood favorites, downloading and installing it to begin your journey.
For Win 7 or later (64-bit)
For macOS 10.12 or later
This emulator offers a variety of solutions and is just an emulator for playing PS1 video games, making it one of the best ps 1 emulators and most complete emulators. The first stable version was released in the year 2020, almost a decade after its launch in the year 2010. On top of all that, it is free, open-source, and can emulate gaming consoles, media players, game engines, and others. That makes it a very reliable emulator.
Features:
- Multiple platforms are supported, such as Windows, Linux, and macOS.
- As a fast, portable, lightweight emulator, RetroArch requires no adjustments or very little tweaking to run and function properly.
- In terms of game-saving, refresh rate, game loading, and screen resolution, it is one of the best PS1 emulators out there.
2.Matsu Emulator
There is also the Matsu Emulator, which is based on the PSX/PSOne platform. Despite being one of the best emulators in the world, it is also quite stable and safe. There are more and more features being added to the software. In contrast, the simulator works well but the free version has heavy advertising. If you purchase the pro edition in the game, you will be able to remove the advertisements. If you would like to pay someone for an emulator, we would recommend ePSXe or FPse. You will find Matsu Emulator to be a reliable and efficient program if you can endure its commercials.
Features:
- It features an on-screen virtual keypad as well as support for gamepads.
- The sound quality is excellent.
- As well as fast-forwarding, it also supports rewinding.
- Up to 16 slots can be used by the Matsu emulator.
3.Mednafen
Games are run using OpenGL and SDL in Mednafen, a multi-system emulator. Users can remap hotkeys and virtual system inputs to joysticks or keyboards, or both simultaneously. Rewinding in real-time and saving at multiple states are supported by the emulator. It also allows you to take screenshots instantly. Pictures are saved as PNG files.
The majority of Mednafen’s cores are portions from other applications, but some are originals. In terms of quality, precision, and compatibility, its original cores (built to run PS1, Sega Saturn, and Nintendo Virtual Boy games) are noteworthy. The command-line interface of Mednafen is easy to use. Additionally, it supports several third-party GUIs to make configuration even easier. For example, MedLaunch offers a dynamic games library with DAT lookup and online scraping and the ability to configure controllers.
Features:
- Multi-platform emulation allows games to be played on PlayStation One as well as other gaming consoles.
- Compatible with most gaming consoles, including the PlayStation One, it is very accurate in its compatibility.
- Providing you have the right PlayStation BIOS and ROM, it can be set up quickly and easily.
- The Mednafen emulator supports the use of game cheats.
4.ePSXe
You can play PlayStation games on your Android phone and PC using ePSXe (short for enhanced PSX emulator). A wide range of devices are supported, making it a fast, accurate, and highly versatile tool. Within seconds, you can start playing games after configuring the program. It is just a matter of copying the BIOS file from your console, setting up the controller, and customizing the keys.
Gameplay usually runs smoothly without much configuration and trial-and-error. When your game doesn’t load or you experience lags, you can fix it by applying an ePSXe patch (in .ppf format).
Features:
- This software provides a close analogous experience to playing video games on the PlayStation One itself, but on a personal computer.
- Its controller options can be tailored to meet your needs.
- It allows you to pause, resume, and save your gameplay from the point you last left it.
- Dual-player and split-screen modes are available. Additionally, you can also use external gamepads to play your favorite video games.
5.Biz Hawk
There are a lot of tools for speedrunning and emulation testing. In addition to running games from a variety of classic consoles, BizHawk is an open-source multi-system emulator. It also offers a feature to record audio and video in-game.
In addition to the PSP, the platform can also support the Nintendo 64, Game Gear, SEGA Master System, ZX Spectrum, Neo Geo Pocket, NES, Commodore 64, and many more. By allowing you to slow down or even pause the emulation, BizHawk is unique in that it allows you to advance it frame by frame. With a debugging system like this, you can analyze emulation down to the millimeter and beat time records or high scores by making the most of your video game emulation.
Features:
- Support for full-screen mode
- Fire controls that operate automatically or quickly
- There are an infinite number of named savestates
- Stepping, rewinding, and speed control.
Final Verdict
If you were looking for a PlayStation 1 emulator that could provide you with the same experience as the console, we have shared a list of the 5 best ps1 emulators. Keep in mind that this is the list of ps1 emulators for Pc and works with different operating systems. Choosing the right PS1 emulator is as simple as viewing the list of games it supports to find your childhood favorites, downloading and installing it to begin your journey.
For Win 7 or later (64-bit)
For macOS 10.12 or later
Also read:
- "\"[New] 2024 Approved Yearly Roundup Premium Skype Recorder Options\""
- "[New] In 2024, Turn Your Mobile Into a Professional Webcam for Video"
- "\"In 2024, Ultimate Selection The 10 Best Apps for Smartphone Video Calls\""
- "[New] Best 10 Free Recording Apps for Slack Chats for 2024"
- "[Updated] In 2024, Top 10 Video Calls Software Compared Side by Side"
- "\"[Updated] 2024 Approved Exploring the Prime Linux Screenshot Applications\""
- "How to Enhance Audibility with Adjusted OBS Settings for 2024"
- "\"[New] 2024 Approved Best 6 Mac Video Snaggers Compiled Here\""
- "\"[New] Maximizing Memories Techniques for Gameplay Recording\""
- "\"[New] In 2024, Ultimate Guide Ten Most Affordable Screen Capture Software\""
- "In 2024, Top 12 Screen Recorder No Time Limits"
- "[New] Ranking the Ultimate in Mac GIF Recorders for 2024"
- "\"[New] The Hidden Pathway to Logging In-Depth WhatsApp Chats for 2024\""
- "\"2024 Approved Best HD Visual Recorders Available\""
- "[Updated] In 2024, Top 8 Techniques for Capturing PC Audio & Mic Sounds"
- "\"[Updated] 2024 Approved Essential 5 Live Stream Video Recorders for Remote Sessions\""
- "\"[Updated] Capture Masters Expertly Reviewing Recorders for 2024\""
- "[New] In 2024, 5 Easy Ways to Record YouTube Videos"
- "\"[New] 2024 Approved Essential Windows Tips for Efficient Live TV Saving\""
- "\"[New] 2024 Approved Master the Art of Professional Webcam Filming\""
- "[New] The Ultimate Guide to Finding Your Ideal Recorder (MacOS)"
- "\"[New] In 2024, Learn to Conduct Zoom Webinars A Newbie's Blueprint\""
- "\"Spectacular Racing Sims Number One to Five\""
- "\"2024 Approved Essential Tools for Perfect Images\""
- "Expert Advice on Gaming Capture with Windows 10"
- "[New] In 2024, Ensuring Clear Sound with Proper OBS Configurations"
- "\"[New] Ultimate Tutorial Screen Skype via OBS for 2024\""
- "\"Capturing Unrooted Audio 4 Easy Steps for Android\""
- "[New] Effortless Recordings at No Extra Cost – Guide to Top Free Tools for 2024"
- "FramingFraction Analysis for 2024"
- "\"2024 Approved Advanced Techniques for Quieter Video Calls on Skype\""
- "[Updated] In 2024, The Path to Perfect Sims Video Sessions"
- "[New] Neat Screen Capture Utility, Win10 for 2024"
- "\"[Updated] Hands-Free Strategies for Logging Online Meetings for 2024\""
- "\"[New] 2024 Approved UnveilingNextGenCameraTech\""
- "[Updated] In 2024, Record Presentation for Digital Projection"
- "\"[Updated] 2024 Approved Muting Problem Solutions for OBS Sound Capture\""
- "[Updated] Live Feed Capture via OBS for Instagram for 2024"
- "\"[Updated] Enhancing Your iPhone Experience Voice Memo Techniques\""
- "[Updated] The Comprehensible Guide to WinCams' Bests for 2024"
- "Simultaneous Scheduling on iPhone/Android with Zoom Desktop Timeline for 2024"
- "[New] Top Eight Video Recording Apps"
- "\"[New] ScreenFlow Simplified Streamlining Your Video Projects on a Mac\""
- "\"[New] Teaching Technology Trends The Top 10 Audio-Visual Devices for Classrooms for 2024\""
- "\"[New] 2024 Approved Smart Recording Solutions for Schools & Colleges\""
- News Beats and Melodies The Ultimate Background Playlist for 2024
- The Magnificent Art of Pokemon Go Streaming On Vivo Y56 5G? | Dr.fone
- Set Your Preferred Job Location on LinkedIn App of your Motorola Moto G34 5G | Dr.fone
- In 2024, Tecno Camon 20 Premier 5G ADB Format Tool for PC vs. Other Unlocking Tools Which One is the Best?
- How to Export iMovie, In 2024
- How to Fix Errors were detected while saving Excel?
- Full Guide to Unlock Your Xiaomi Redmi K70
- How To Transfer WhatsApp From Apple iPhone 6 Plus to other iPhone 11 Pro devices? | Dr.fone
- How To Do Samsung Galaxy S24 Ultra Screen Sharing | Dr.fone
- Updated Best MKV Cutting Tools 2023 Edition (No Cost!) For 2024
- New In 2024, Advanced Audio Editing for Professionals Detailed Instructions to Remove Vocals From Recordings in Adobe Audition
- 8 Quick Fixes Unfortunately, Snapchat has Stopped on Huawei Nova Y71 | Dr.fone
- New In 2024, Top 7 Online Auto Subtitle Translators for Content Creators
- The Ultimate List of the Most Accessible, No-Cost DAW Programs for Emerging Producers
- 2024 Approved Innovative Text-to-Speech Solutions Dominating the Market
- How To Reset the Security Questions of Your Apple ID On Your iPhone 6
- New The Auditory Excision Handbook Removing Sound From MP4, MKV, AVI, MOV, WMV Videos
- 2024 Approved Unleash Your Creativity 10 Best Vegas Pro Alternatives for Mac (Free & Paid)
- Change Video Playback Rate in Camtasia A Step-by-Step Guide
- How to Transfer Data from Vivo V30 to BlackBerry | Dr.fone
- Updated How to Select the Best Voice Changer for Gaming, In 2024
- In 2024, 15 Best Strongest Pokémon To Use in Pokémon GO PvP Leagues For Nubia Red Magic 9 Pro+ | Dr.fone
- Wondering About Vimeo Slideshow Maker? Know Everything About the Platform Which Is Gaining Much Popularity. Also, Browse some Tips to Create Appealing Video Slideshows for 2024
- New In 2024, Sovereign Soundstitcher - The Ultimate MP3 Merger for Mac Techies
- In 2024, The 6 Best SIM Unlock Services That Actually Work On Your Vivo Y78t Device
- Updated 2024 Approved Unleash Your Creativity Best Stop Motion Animation Apps for Mobile
- Title: "2024 Approved Superior Console Emulation Best PS1 Games for Your PC"
- Author: Vivienne Westwood
- Created at : 2024-05-18 09:04:22
- Updated at : 2024-05-19 09:04:22
- Link: https://video-capture.techidaily.com/2024-approved-superior-console-emulation-best-ps1-games-for-your-pc/
- License: This work is licensed under CC BY-NC-SA 4.0.