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Pokémon Uranium on macOS

This guide is still young. If there is a problem with it, please open a GitHub issue. If you are unsure if it’s the guide or you, comment in this Reddit thread and I’ll try to help you.

Introduction

Pokémon Uranium development started around 2006 using RPG Maker XP, which as you might guess was designed for Windows XP. The game doesn’t run great on some modern computers and operating systems due to compatibility issues, and the binary is Windows-only. But wine can run some Windows-only software, and Pokémon Uranium is supported! Wine may even run the game better than Windows installed on the same computer via Bootcamp! Here I’ll detail the steps you need to take to install and run Pokémon Uranium on your Mac.

If this sounds too good to be true, it’s not. The reason is that Wine effectively runs the game natively but with open source libraries that can perform better than the proprietary Microsoft equivalents. The reason this Wine more widespread is due to the complexity in configuring it, and the fact that until fairly recently it was very buggy and didn’t work with many pieces of software. This has improved greatly in the last few years.

This document is based off this Reddit post, which dealt with running Pokémon Uranium in Wine under Linux. It has been significantly expanded to help less experienced users.

What to expect

I’ve tested Pokémon Uranium in VMWare Fusion (Windows XP VM), Wine and Bootcamp (running Windows 10 natively on my MacBook Pro). This is what I found:

Windows XP virtual machine:

Almost completely unplayable, messed up audio and very laggy

Windows 10:

Skips frames regularly (GPU is a Radeon Pro 455, which is more than capable enough for this)
Has significant screen tearing and no vsync option (AMD driver settings have no effect)
Has a weird menu bug where menu navigation slows to around 1 option per second (making changing controls painful)
Has the well known line bug on a 4k display:
- Some people have been having problems with weird lines appearing while in fullscreen mode. I am aware of this bug and am attempting to fix it. Until then the temporary fix is to enable "Run in 640 x 480 screen resolution" in the Uranium.exe compatibility settings (This has also been known to reduce lag slightly). (https://www.reddit.com/r/pokemonuranium/comments/525uk9/official_unofficial_patch_and_server_thread/, 2018)

macOS 10.13.3 via Wine:

Runs fairly smoothly
- Expect a few dropped frames, but fewer than with Windows
- A little screen tearing is present but mainly occurs when running horizontally in the overworld
Doesn’t have the menu slowness bug
Doesn’t have the line bug

Requirements

macOS 10.13.3+ (not tested on earlier versions, may work but no guarantees)
Administrator privileges
A reasonably modern Mac, the faster the better
- I’ll keep this guide up to date with user reports, if you want to help make this guide better please see the contributing section at the end
A vague knowledge of UNIX and the Terminal (helpful for troubleshooting but not strictly necessary if you follow this exactly and everything works)
A copy of the current Pokémon Uranium files (the folder C:\Program Files (x86)\Pokemon\Uranium on a Windows install)
- Wine cannot be used to run the installer
- You need to download the portable (ZIP) version from this Reddit post later on

① Install

⏱ This step will take 30–60 minutes

Microbug has written an automagical installation script that will download, install and configure everything for you. All you need to do is download the game files and move them to the right place.

If you already have Homebrew installed, the install script will detect it and won’t overwrite your existing installation. It will update Homebrew though.

Open Terminal and copy and paste the following into it, then press enter. This will install all the tools needed to run Pokémon Uranium under Wine.

curl -s "https://raw.githubusercontent.com/microbug/pokemon-uranium-on-macos/master/install.sh" | bash

Explanation of the wine configuration installed by `install.sh` (for technical users)

`directplay`, `directmusic`, `dsound`: required to run the game.

devenum, dmsynth, quartz: these may or may not be required. The game doesn’t run slower without them so it’s probably best to include them.

d3dx9_36: a version of d3dx9 is required, all versions seem to run similarly. d3dx9_36 is usually the default for wine so it is chosen.

ddr=opengl: use opengl instead of gdi. Improves performance.

macdriver=x11: use XQuartz rather than Wine’s builtin Mac driver. Greatly improves performance.

win10: emulate Windows 10. Seems to run a little smoother than the default Windows 7.

② Add the Game

Add the game to the virtual Windows installation

⏱ This step will take about 5 minutes

Option A:
- Go to this Reddit post and click on the ZIP link to download the game files
  - The installer doesn’t work under Wine so it needs to be the portable (ZIP) version
- Extract the zip file once it has downloaded by double clicking on it (this might happen automatically depending on how your Mac is set up)
Option B:
- Install Pokémon Uranium on a Windows computer
- Copy the folder C:\Program Files (x86)\Pokemon Uranium to your Mac
In Finder press SHIFT+CMD+G and type ~/pokemon_uranium/drive_c/Program Files (x86) into the box, then hit enter
Move the Pokemon Uranium folder from whichever option you chose to the folder you are now in

Run the game once to install fonts

⏱ This step will take about 5 minutes

Go to ~/pokemon_uranium
Double click Run Pokémon Uranium to start Pokémon Uranium
The fonts will look strange on this first run
- The game will automatically install the fonts it needs
Press enter to accept when the game asks you if you want to restart it
It will close (and won’t automatically restart)

Move the game to your preferred location

You can leave the game in ~/pokemon_uranium, but if you want to move it to (for example) ~/Documents/Pokémon Uranium you can now do so through Finder.

③ Play Pokémon Uranium 😄👏

Every time you want to play, double click Run Pokémon Uranium.command in your game directory to start it
You can also drag Run Pokémon Uranium.command to the right side of your Dock (next to the Trash)
When the game has launched you can close Terminal safely
Your saves are in <game directory>/drive_c/users/<username>/Saved Games/Pokemon Uranium

Checking for updates

The game’s built-in update checking mechanism appears to work correctly.

In the game’s main menu, select Check for updates
If prompted, allow the game to run the patcher
The patcher should run
- It may spit out some errors about invalid RAR archives
- It’s unknown whether these affect the game, but it seems to run correctly afterwards and says it’s now up-to-date

Best settings for smoothness

The default settings seem to be best as of version 1.21

In the game, press F1 to access the game engine’s settings menu
Enable Smooth Mode (Pentium 4 1.5GHz or higher)
Optionally enable Reduce screen flickering if it helps reduce tearing for you
Performance mode in the game’s options menu seems to have little effect on high-end systems, enabling it may help the game to run on old or low-end systems

Playing with a controller

If you want to use a controller (I recommend the 8Bitdo SN30) follow these instructions:

Install Enjoyable
In Enjoyable, map each key on your controller to the letter it corresponds with, e.g., left bumper to L, right bumper to R
Make sure to click the > button in the top right of the Enjoyable window to enable keyboard mapping
In Pokémon Uranium go to Options → Controls and map each control to your controller’s buttons
Remember that you’ll need to start Enjoyable to use your controller

Known issues

Fullscreen mode causes the game to slow down significantly. An alternative to fullscreen is to set the window to Large, and go to System Preferences → Accessibility → Zoom → Use scroll gesture with modifier keys to zoom, then zoom into the game using your chosen modifier key and a scroll wheel / pinch on the trackpad.
- Fullscreen performance issues have also been reported on Windows so this is unlikely to improve unless a patch that fixes it is released

Contributing

System requirements

If you’d like to contribute to this guide, the easiest thing you can do is to send me your computer’s specs and let me know how well Pokémon Uranium runs for you. This will help create a more accurate requirements section.

If you know how, you can create a pull request that adds a line to Experiences.csv (check the headers of that file for what to add where).

Otherwise, please send an email to richard@microbug.uk. Please use the following template:

Does Pokémon Uranium run at all under Wine on your Mac?
[...]

If yes, on a scale of 1 to 10, where 1 is barely and 10 is flawlessly,
how well does Pokémon Uranium run on your Mac?
[...]

Did you encounter any specific bugs? The more detail the better!
[...]

Remember to attach your screenshot or this is useless!

Thank you for contributing to this project

Please attach a screenshot of your ‘About this Mac’ page (you can black out the serial number and UUID with Preview if you wish, I won’t publish and don’t need that information). You can do this as follows:

Click on the Apple menu (at the very top left of your screen).
Select About this Mac
Take a screenshot using the built in Grab app (the image is saved to the Desktop)
Optionally remove/cover your serial number and hardware UUID
Attach to email

Other contributions

If you know what you’re doing or have a suggestion, please make a pull request or open an issue on GitHub. You can also email me at richard@microbug.uk. My PGP key is available at https://keybase.io/microbug.