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Yaroslav Subbotin
Yaroslav Subbotin

The Ultimate Guide to Digimon Story: Lost Evolution English Patch - Download, Install, and Enjoy

Digimon Story: Lost Evolution - A Hidden Gem for DS Fans

If you are a fan of Digimon and RPGs, you might have heard of Digimon Story: Lost Evolution, a Nintendo DS game that was released in Japan in 2010. This game is part of the Digimon Story series, which also includes Digimon World DS, Digimon World Dawn and Dusk, and Digimon Story: Cyber Sleuth. In this game, you play as a young tamer who can explore a digital world full of mysteries and dangers, while befriending and evolving over 300 different Digimon. You can also customize your Digimon with various skills, items, and accessories, as well as battle other tamers online or locally.

digimon story lost evolution english patch download

Digimon Story: Lost Evolution is a great game for Digimon fans, as it features a rich and engaging story, a deep and strategic combat system, a colorful and detailed graphics style, and a catchy and nostalgic soundtrack. However, there is one problem that prevents many people from enjoying this game: it was never officially localized in English or any other language outside Japan. This means that unless you know Japanese, you will have a hard time understanding what is going on in the game and how to play it properly. Fortunately, there is a solution for this problem: an English patch made by dedicated fans.

Why You Need an English Patch to Play It

An English patch is a modification of a game that changes its text, graphics, or sound to make it more accessible for players who speak a different language. In this case, an English patch for Digimon Story: Lost Evolution changes all the Japanese text in the game to English, so that you can read the dialogue, menus, items, skills, and other information in the game. It also changes some of the graphics and sound effects to match the English text.

An English patch for Digimon Story: Lost Evolution is necessary because there is no official localization of the game by Bandai Namco or any other company. The reasons for this are unclear, but some speculate that it was due to low sales expectations, licensing issues, or lack of interest from Western audiences. Whatever the case may be, it is unfortunate that such a great game was left out of the international market.

However, thanks to the efforts of some passionate fans who love Digimon and video games, an English patch for Digimon Story: Lost Evolution was created and released in late 2022. The project was led by Operation Decoded, a team of translators, hackers, testers, and supporters who have also worked on other Digimon games such as Digimon World Re:Digitize Decode and Digimon Adventure PSP. The project took several years to complete, as it involved translating over 2000 text files, editing hundreds of images, fixing bugs and glitches, and testing the game extensively.

How to Download and Apply the English Patch

Step 1: Get a ROM of the game

A ROM is a file that contains all the data of a video game that can be played on an emulator or a flashcart. To play Digimon Story: Lost Evolution with an English patch, you will need a ROM of the original Japanese version of the game. You can obtain a ROM by dumping your own copy of the game using a device such as an R4 card or a NDS Backup Tool. Dumping your own copy of the game is legal and ethical, as long as you do not share it with anyone else or download it from illegal sources.

Step 2: Download the patch file

The patch file is a file that contains all the modifications made by Operation Decoded to translate Digimon Story: Lost Evolution into English. You can download it from their official Facebook page here:

The patch file is compressed in a ZIP format, so you will need to extract it using a program such as WinRAR or 7-Zip. Inside the ZIP file, you will find two files: xdeltaUI.exe and DSLostEvolutionPatch.xdelta. You will need both files to apply the patch.

Note that Operation Decoded does not provide any ROMs or links to ROMs on their page or anywhere else. This is because distributing or downloading ROMs without permission is illegal and unethical. Please respect their work and do not ask them for ROMs or share ROMs with others.

Step 3: Use xdeltaUI to patch the ROM

xdeltaUI is a program that allows you to apply patches to ROMs using xdelta files. xdelta files are files that contain only the differences between two files (in this case, between the original Japanese ROM and the patched English ROM). This makes them smaller and easier to distribute than full ROMs.

To use xdeltaUI to patch your ROM, follow these steps:

  • Open xdeltaUI.exe.

  • Click on "Open" next to "Patch" and select DSLostEvolutionPatch.xdelta.

  • Click on "Open" next to "Source File" and select your Japanese ROM (it should have .nds extension).

  • Click on "..." next to "Output File" and choose where you want to save your patched ROM (you can name it whatever you want).

  • Click on "Patch" and wait for it to finish.

You should see a message saying "Successfully patched!" when it's done.

The icon of xdeltaUI looks like this:

Step 4: Enjoy the game on your emulator or flashcart

Now that you have your patched ROM ready, you can play it on your emulator or flashcart of choice. An emulator is a program that simulates a console or handheld device on your computer or mobile device. A flashcart is a device that allows you to play ROMs on your actual console or handheld device using a microSD card.

Some recommended emulators for playing Digimon Story: Lost Evolution are melonDS (for PC), DraStic (for Android), nds4ios (for iOS), or DeSmuME (for PC/Mac/Linux). Some recommended flashcarts are R4i Gold 3DS Plus (for DS/DSi/3DS), Acekard 2i (for DS/DSi), or DSTWO (for DS/DSi/3DS).

To play the game on your emulator or flashcart, simply load your patched ROM file as you would normally do with any other ROM file. Make sure you have enough free space on your device or microSD card before playing.

Some tips on playing Digimon Story: Lost Evolution are:

  • Save often using both in-game save function and emulator/flashcart save states (if available).

Read all dialogue carefully as they contain important information about quests, items, What to Expect from the Game and the Patch

Digimon Story: Lost Evolution is a game that will appeal to both casual and hardcore Digimon fans, as well as RPG lovers in general. The game has a lot to offer in terms of story, gameplay, graphics, sound, and translation quality.

The story of the game revolves around a mysterious phenomenon called "Lost Evolution", which causes Digimon to lose their ability to evolve and revert to their previous forms. You play as either Shuu or Kizuna, two young tamers who are chosen by the DigiMemory, a device that can restore evolution to Digimon. Along with your partner Digimon and your friends Yuuya and Asuka, you embark on an adventure across the digital world to find out the cause of Lost Evolution and stop it before it's too late.

The gameplay of the game is similar to other Digimon Story games, but with some improvements and additions. You can explore various areas of the digital world, such as forests, deserts, caves, cities, and dungeons. You can encounter wild Digimon and battle them in turn-based combat. You can also scan their data and add them to your DigiFarm, where you can raise and train them. You can evolve your Digimon using various methods, such as leveling up, using items, fulfilling requirements, or using DigiMemory. You can also customize your Digimon with different skills, items, and accessories that affect their stats and abilities.

The graphics of the game are colorful and detailed, with a 2D sprite-based style that fits the DS hardware well. The game uses a top-down perspective for exploration and a side-view perspective for battles. The animations of the Digimon are smooth and expressive, and the backgrounds are varied and atmospheric. The game also features some 3D cutscenes that show important events in the story.

The sound of the game is catchy and nostalgic, with a soundtrack composed by Tenpei Sato, who also worked on other Digimon games such as Digimon World Re:Digitize Decode and Digimon Adventure PSP. The music ranges from upbeat and cheerful to dark and ominous, depending on the mood of the scene. The game also features some voice acting for some characters and Digimon, as well as sound effects for battles and actions.

The translation quality of the patch is excellent, considering that it was made by fans without any official support or resources. The patch translates all the text in the game to English, including dialogue, menus, items, skills, names, descriptions, and more. The patch also edits some of the graphics and sound effects to match the English text. The patch is faithful to the original Japanese version of the game, but also adds some creative touches and references to make it more enjoyable for English-speaking players. The patch is also bug-free and compatible with most emulators and flashcarts.


Digimon Story: Lost Evolution is a game that deserves more attention and recognition from Digimon fans and RPG fans alike. It is a fun and engaging game that offers a lot of content and replay value. It is also a game that can be played in English thanks to an amazing fan-made patch that translates and enhances the game for non-Japanese players.

If you are looking for a new Digimon game to play on your DS or emulator/flashcart device, you should definitely give Digimon Story: Lost Evolution a try. You will not regret it.


  • Q: How long is the game?

  • A: The game's length depends on how much you explore and do side quests, but it can take anywhere from 20 to 40 hours to complete the main story. There is also a post-game content that adds more hours of gameplay.

  • Q: How many Digimon are in the game?

  • A: The game features over 300 Digimon from all generations and types. You can see a full list of them here:

  • Q: How do I evolve my Digimon?

  • A: There are different ways to evolve your Digimon in the game. Some evolve by leveling up, some by using items or DigiMemory cards, some by fulfilling certain requirements such as stats or friendship level, and some by special events or quests. You can check your Digivice for more information on each Digimon's evolution path.

  • Q: How do I get DigiMemory cards?

  • A: DigiMemory cards are special items that allow you to evolve your Digimon into powerful forms or summon them in battle. You can get them by completing quests, finding them in chests or hidden spots, scanning QR codes with your DS camera (if available), or trading with other players online or locally.

  • Q: How do I play online or locally with other players?

  • A: You can play online or locally with other players by using the Wireless Communication option in your DigiFarm menu. You can battle other players in single or tag battles, trade items or DigiMemory cards with them, or chat with them using preset messages. You will need a Wi-Fi connection for online play or a wireless connection for local play.


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