New Game Mode
The creation of new game modes for Himeko Sutori is a complicated task that requires experience in programming. For those unfamiliar with modding for UDK and Unreal 3 games, we recommend that you start with some UDK tutorials. UDK is no longer supported by Epic Games, but you can find downloads here. A great way to get started with UDK is by trying out the starter kits located here.
In order to make your own game mode, you will have to set up an UnrealScript programming environment. UnrealScript is a language developed by Epic Games for use in UDK, Unreal Engine 3, and games based on those engines. Himeko Sutori provides all of its UnrealScript source code out in the open for you to experiment with and base your own games on.
There are two things that you will need before starting to make a new gameplay mode. You will want an editor, where you will type your code. And you will want an IDE to tell your editor how UnrealScript works. Common editor-IDE combinations include Visual Studio 2010 Shell with nFringe or Real Script and Sublime Text with UnrealScript IDE.
Once you have those, start a new UnrealScript project based on the code found in HimekoSutori\Development\Src. The process is virtually identical to the process described at the Unreal Engine website and we encourage you to look there for instructions on setting up a new UnrealScript project.
Once you have your project ready to go, you can base your custom GameInfo class on RPGTacGame, your Pawn class on RPGTacPawn, and your PlayerController on RPGTacPlayerController. From there, you have a great start on making the game of your dreams.