How to Play Pokemon Uranium on Android with JoiPlay

Pokemon Uranium is one of those fan games almost every Pokemon player has heard about, even if they have never played it. It has a full original region, more than 150 original Pokemon, and a Nuclear type that changes how battles feel. The good news is that you do not need a PC to play it. Uranium is built with RPG Maker XP and Pokemon Essentials, so it runs on Android through JoiPlay and the RPG Maker Plugin. This pokemon uranium joiplay guide walks through the safe download route, the exact setup steps, and the small problems that catch new players on first launch.

Quick Facts

Uranium took around nine years to develop and first launched in August 2016. Few fan games have a story as unusual as the game itself, and that history matters when you choose where to download it from.

What Pokemon Uranium Is

Uranium is a complete fan made Pokemon game set in Tandor, a tropical region split between the mainland and island areas. Instead of reusing a familiar map, it gives you a new journey with its own towns, its own Gym Leaders, and a Pokedex built around original designs.

The headline features are:

• Over 150 original Pokemon, alongside familiar species, for a total Pokedex much larger than the Fakemon count alone
• 8 Gyms and a Tandor League run, so it has the shape of a full retail style adventure
• The Nuclear type, a fan made type that is super effective against every other type but also weak to every other type
• Nuclear Pokemon, corrupted and feral versions of ordinary Pokemon that appear as part of the story and the region’s danger

That last point is what makes Uranium feel different in battle. A Nuclear Pokemon can hit almost anything hard, but it can also fall just as fast. It is a risky glass cannon design, and the game builds whole areas and story beats around it. If you enjoy the standard fan game setup and want more options after this one, our wider guide on How to Play Pokemon Games on JoiPlay covers the same process for the whole category.

Why the Download Source Matters With Uranium

Uranium is the one game in this series where the download warning really matters. Shortly after the 2016 release, the creators received several takedown notices from Nintendo of America and removed the official download links from their website. The original team later discontinued support. Be careful with the wording you see online: the team said at the time that they had not received a formal cease and desist, but they chose to remove the links in response to the notices.

Since then, community patchers have continued the game in an official capacity through the community site, including updates and bug fixes. That history creates a messy search landscape:

• ✅ Start at pokemonuranium.org, the community home of the game, and follow the links and guidance found there
• ✅ Use the game’s community wiki and r/pokemonuranium to check which build is current
• ❌ Avoid random download portals and APK sites that promise one tap Uranium installers, because Uranium is a Windows fan game folder, not an official Android APK
• ❌ Avoid any site asking you to install extra download managers or unrelated apps to get the game

Because links and mirrors change, this guide will not point you at a single unofficial mirror and call it official. Start from the community home and you will reach the current maintained build safely.

What You Need Before Starting

Prepare these first and the setup becomes a simple sequence:

• ✅ An Android phone with enough free space for the download, the extracted folder, and room to spare during first launch
• ✅ JoiPlay installed from joiplay.net or the official JoiPlay Patreon public posts
• ✅ The RPG Maker Plugin installed, because Uranium is an RPG Maker XP game
• ✅ The current Uranium build, reached from pokemonuranium.org
• ✅ An extraction app such as ZArchiver

If you are not sure what the plugin does or why Essentials games need it, read our guide to the JoiPlay RPG Maker Plugin before you start. It explains how the plugin pairs with the main app and why JoiPlay cannot launch XP games without it.

Step by Step: Install Pokemon Uranium on JoiPlay

With everything ready, follow these steps in order:

1. Go to pokemonuranium.org and follow its current links to the maintained Uranium build. Download the Windows game archive, not any Android APK offered by a third party site.
2. Open the archive in ZArchiver and extract it fully into its own folder on your phone’s internal storage.
3. Wait for extraction to finish completely. A game this size can take a while, and stopping early is a common cause of missing file errors later.
4. Check the extracted folder. You should see Game.exe with the game’s data and audio folders around it. Do not rename any folder.
5. Install JoiPlay if you have not already, then install the RPG Maker Plugin as well.
6. Open JoiPlay, tap the + button, and add a new game.
7. Enter a name, such as Pokemon Uranium, then browse to the extracted folder and select Game.exe.
8. Launch the game from your JoiPlay library and allow extra time for the first load.

Internal storage is the safest home for the folder. A slow SD card can make extraction, first launch, and later loading screens feel worse than they should.

Runtime Package Note

New JoiPlay users often worry about the RTP, short for Runtime Package, because older RPG Maker games sometimes depend on shared assets that are not inside the game folder. Essentials fan games like Uranium are normally distributed as self-contained folders, so most players will not need to hunt down a separate RTP file before playing.

If JoiPlay or the game reports missing standard assets on your copy, deal with it in this order:

1. Re-extract the archive fully first, because a partial extraction looks exactly like missing RTP content.
2. If the problem remains, follow our guide on How to Add a Runtime Package and add the package that matches the game’s RPG Maker generation.
3. Restart the game before testing anything else.

Do not install random RTP files from unrelated sites as a first step. Fix the extraction first, because that solves the majority of cases.

First Launch Notes

The first launch of a large Essentials game is rarely instant. JoiPlay and the plugin have to prepare and read a big folder, and Uranium is not a small game. Give the first load more time than you would give a lightweight title.

A few normal things to expect:

• A long first load is normal. Later launches are usually faster.
• Battles can feel heavy on weaker phones. Uranium’s effects, weather and Nuclear battle scenes ask more of the phone than a simple overworld walk.
• Text is readable but dense. The game was designed for a PC screen, so a larger phone display makes menus and Pokedex reading more comfortable.
• Save early and save in game. Use the game’s own save option before long story sections, not just when you plan to stop playing.

If the game is technically running but feels sluggish everywhere, closing background apps and keeping the folder on internal storage are the two simplest improvements before you change anything else.

Back Up Your Save Before Applying Community Patches

Uranium’s modern life depends on community updates. That is a strength, but it comes with one responsibility: back up your save before applying a patch or moving to a newer build.

Your save lives with the game files. Before updating, copy the save files, or the whole game folder if space allows, to a separate backup location. Then apply the update to the original folder and test the game before deleting the backup. If anything goes wrong, you still have a working copy of your progress. This habit matters more with Uranium than with a game that has been frozen at one final build for years, because Uranium still receives community fixes.

A Note on Online Features

Uranium was ambitious for its time and shipped with online ideas, and the game’s community history notes that the community team continues to run the game’s server alongside its updates. Treat online features as a bonus rather than a promise on Android: what works can depend on the current community build and on JoiPlay itself, and the single player game, which is the heart of Uranium, does not depend on any of it. If an online feature matters to you, check the community wiki and subreddit for its current status before you plan around it.

Common Problems and Fixes

For problems that go beyond this game, our general JoiPlay Not Working guide works through launch failures in a sensible order.

Conclusion

Pokemon Uranium deserves its reputation. Tandor is a proper original region, the Nuclear type is a bold idea that changes battles, and the game’s afterlife through community updates is a piece of fan game history by itself.

Because it is an RPG Maker XP and Pokemon Essentials title, the Android route is the familiar one: a safe download starting from pokemonuranium.org, a full extraction, JoiPlay plus the RPG Maker Plugin, and Game.exe as the file you select. Back up your save before community patches, and Tandor will be waiting on your phone.

Frequently Asked Questions