Uwajimaya – A Hardcore

Uwajimaya is a hardcore action platformer where you play as a demon who is trapped in an unlikely body. The game mixes the difficulty and level design of Dark Souls with an unique ball-based platforming mechanics.


🎥 Trailer



Uwajimaya is an action platformer where you play as a mighty demon trapped in an unlikely body! Make your way through the ravaged world to regain your freedom and sanity – meeting demons, giants, mutants and all sorts of magical and crazy creatures along the way.

Key Features:

  • Trapped in a Ball: Explore a tragic story of loss and desperation hidden behind a comic tale.
  • Sweet Freedom: Run, jump, bounce and roll your way to freedom!
  • Platforming Skills: It feels like everything is out to get you … – You got that right! Challenge your skills and reflexes against the deadliest of traps.
  • Think, Think, Think: Solve challenging puzzles in between traps!
  • Get Social: The world is ending! Chat with friendly and unfriendly fellows along the way about it.

Uwajimaya fithing monsters

Source code

  • NOTE: the MIT License only applies to the code in this repository and does not include the actual commercial Uwajimaya game or assets.
  • This repository only contains the code but NO Assets and some missing plugins.
    • So you can’t build easily from this source code.
  • This source code is only for educational purposes.


We provide these sources for our customers, and as a reference for Unreal Engine developers. You won’t be able to run the game from this repository alone, as the game contents are not included. Building from source is only useful if you want to replace the game executable with your modifications.

Required dependencies

You will need the following tools to build Uwajimaya from the source code:

  • Unreal Engine 4 as the game engine. You will need to sign up and download the Epic Games launcher. In the launcher library for Unreal Engine, install version 4.22.
  • Setup Visual Studio 2017 for Unreal Engine – You can download Visual Studio 2017 Community edition from here
    • or after you sign in, directly from this link as Microsoft makes it hard to download VS 2017 (for some reason).
  • Download the FMOD plugin (version 1.10.19) for UE 4.22 and copy the libs Binaries from it, inside Plugins/FMODStudio/Binaries directory.
    • You should copy FMODStudio/Binaries (after downloading and unzipping) to Plugins/FMODStudio/Binaries


1. Run UnrealBuildTool

The Build command looks like this:

<engine_install_path>/Engine/Binaries/DotNET/UnrealBuildTool.exe <project_name><target_type> <platform> <build_type> -project=<uproject_absolute_file_path> -progress

To build just the Game for Windows 64 run for example:

"c:/dev/UE/UE_4.22/Engine/Binaries/DotNET/UnrealBuildTool.exe" Uwajimaya Win64 Development -project="C:/dev/Uwajimaya/Uwajimaya.uproject" -progress

NOTE: If you want clean the project before you build, just add the -clean flag.

For example:

"c:/dev/UE/UE_4.22/Engine/Binaries/DotNET/UnrealBuildTool.exe" Uwajimaya Win64 Development -project="C:/dev/Uwajimaya/Uwajimaya.uproject" -progress -clean

NOTE: You can also build the game by opening the .sln file in Visual Studio 2017 and building the Development Game target.

2. Copy Binaries

The resulting binaries and debug files will be generated inside Binaries/Win64/ and can replace the equivalent files in your existing game folder (located at <install_path>/Uwajimaya/Binaries/Win64/)


1. Unarchive pak

The game has the Content inside a .pak file which is just an archive. You need to unarchive it with the UnrealPak utility.

The pak command utility can be found here:


The pak file can be located here:


Extract the pak file:

<engine_install_path>/Engine/Binaries/Win64/UnrealPak.exe <install_path>/Uwajimaya/Content/Paks/Uwajimaya-WindowsNoEditor.pak -Extract <install_path>

NOTE: All paths must be absolute otherwise this won’t work.

For Example:

"c:/dev/UE/UE_4.22/Engine/Binaries/Win64/UnrealPak.exe" "C:/Program Files (x86)/Steam/steamapps/common/Uwajimaya/Uwajimaya/Content/Paks/Uwajimaya-WindowsNoEditor.pak" -Extract "C:/Program Files (x86)/Steam/steamapps/common/Uwajimaya/"

2. Rename paks folder

This is required so that the executable only reads the unarchived files but not the archive itself.

Rename the <install_path>/Uwajimaya/Content/Paks/ directory to something like <install_path>/Uwajimaya/Content/_OLD_Paks/

3. Disable AuraSDKPlugin

Open the <install_path>/Uwajimaya/Uwajimaya.uproject file and set the Enabled field for the AuraSDKPlugin plugin to false.

The section should look like this:

  "Name": "AuraSDKPlugin",
  "Enabled": false

4. Run the game

Now you can run the game with the modified executable you built above.


Or just the launcher executable in the root directory which calls the above path:


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