Game Installation Guide

Overview

This guide explains how to install and start JFTSE / Fanta Tennis.

The recommended setup is the Windows version.

The game is designed for Windows and should first be installed and tested on Windows before trying alternative setups such as Steam Deck, Linux or Mac.

If the game does not start, shows missing DLL errors, disconnects with an old version message, or has anti-cheat related problems, see the Troubleshooting page.

Recommended Platform

JFTSE / Fanta Tennis is a Windows game.

The recommended way to play is:

• Windows 10 or Windows 11
• FT_Launcher.exe
• Required redistributables installed
• Game folder excluded from antivirus / Windows Defender if needed

Alternative setups such as Steam Deck, Linux or Mac may work, but they are not the primary supported setup and can require extra steps.

Windows Installation

Step 1: Extract or Place the Game Folder

Download or extract the JFTSE / Fanta Tennis game folder.

Keep the game folder in a location where the launcher has permission to download, update and write files.

Avoid placing the game folder in protected Windows locations if possible.

Recommended examples:

• Desktop
• Documents
• A custom Games folder, such as C:\Games\JFTSE

Step 2: Install Microsoft Visual C++ Redistributables

The game folder includes a redis folder with required runtime installers.

Inside the redis folder, locate:

• VC_redist.x64.exe
• VC_redist.x86.exe

Install both versions:

1. Double-click VC_redist.x64.exe.
2. Follow the installer instructions.
3. Accept the license agreement if prompted.
4. Finish the installation.
5. Double-click VC_redist.x86.exe.
6. Follow the installer instructions again.
7. Finish the installation.

Important: Install both the 64-bit and 32-bit versions. Some older game components may require the 32-bit runtime even on a 64-bit Windows system.

If you receive errors related to missing C++ components, see Troubleshooting: C++ Redistributable.

Step 3: Install Microsoft DirectX End-User Runtime

Inside the redis folder, locate:

• dxwebsetup.exe

Install DirectX:

1. Double-click dxwebsetup.exe.
2. The DirectX setup wizard will open.
3. Click Next.
4. Read and accept the license agreement.
5. Continue through the setup.
6. Let the installer check and install required DirectX components.
7. Click Finish when the setup is complete.

If you receive an error such as d3dx9_43.dll is missing, see Troubleshooting: DirectX Runtime.

Step 4: Start the Launcher

In the game folder, locate:

• FT_Launcher.exe

Start the game through the launcher:

1. Double-click FT_Launcher.exe.
2. Let the launcher check for updates.
3. Click the double rackets button to download or start the game.
4. Wait until all required files are downloaded and updated.

Important: Always use FT_Launcher.exe to keep the game files up to date.

If the game says that you are using an old version, see Troubleshooting: Old Version Error.

Step 5: Add Antivirus / Windows Defender Exclusion

After the launcher has downloaded all required game files, security software may block or remove important game files.

The file JFTSE.dll is required for the game to connect to the server. It is part of the anti-cheat and game modification system.

If JFTSE.dll is deleted, quarantined or blocked, you may see an error such as:

You have been disconnected because you tried to connect with an old version.
Application will now shut down.

Recommended action:

1. Open Windows Security or your antivirus software.
2. Check whether JFTSE.dll was quarantined.
3. Restore the file if needed.
4. Add the full game folder to exclusions.
5. Run FT_Launcher.exe again.

For more details, see Troubleshooting: JFTSE.dll was deleted.

Step 6: Launch and Play

After installing the required components and updating the game:

1. Run FT_Launcher.exe.
2. Let the launcher check for updates.
3. Start the game.
4. Log in and adjust your settings if needed.

Troubleshooting During Installation

If the game does not start correctly, check the following first:

Problem	Possible cause	Fix
Old version error	Missing runtime, blocked JFTSE.dll or outdated files	See Old Version Error
Missing d3dx9_43.dll	DirectX runtime missing	Install DirectX from the redis folder or see DirectX Fix
Game closes or disconnects	Anti-cheat file blocked or deleted	Restore JFTSE.dll and add the game folder to exclusions
Launcher does not update correctly	Files are outdated or launcher cannot write files	Run FT_Launcher.exe and make sure the folder is not blocked
Account already logged in	Previous session did not close properly	Wait a few minutes or see User Already Logged In

For the full list of known issues and fixes, see the Troubleshooting page.

Mac Users

JFTSE / Fanta Tennis is a Windows game.

Mac users may be able to run the game by installing Windows through Parallels Desktop.

Possible setup:

1. Install Parallels Desktop.
2. Install Windows inside Parallels.
3. Install JFTSE / Fanta Tennis inside the Windows environment.
4. Install the required Visual C++ Redistributables.
5. Install the DirectX End-User Runtime.
6. Run FT_Launcher.exe.
7. Start the game from Windows.

Note: Compatibility may vary depending on the Mac model, Windows version and anti-cheat behavior.

For additional notes, see Troubleshooting: Mac Users.

Steam Deck / Linux Setup

JFTSE / Fanta Tennis does not natively support SteamOS or Proton.

Due to the launcher, patcher and anti-cheat system, the game may not work correctly when launched directly through Steam.

The currently documented working method uses:

• Steam Deck Desktop Mode
• Q4Wine
• The Windows game files
• Manual launcher and game startup steps

Important: Before trying Steam Deck or Linux, it is recommended to install and test the Windows version first.

Steam Deck Prerequisites

You need:

• Steam Deck running SteamOS
• Desktop Mode access
• Q4Wine installed
• JFTSE / Fanta Tennis Windows game files

Step 1: Switch to Desktop Mode

1. Hold the Power button.
2. Select Switch to Desktop.

The game should be configured from Desktop Mode.

Step 2: Install Q4Wine

1. Open Discover in Desktop Mode.
2. Search for Q4Wine.
3. Install Q4Wine.

Q4Wine is used to run the launcher and game executable.

Step 3: Run the Launcher First

1. Open Q4Wine.
2. Navigate to the JFTSE / Fanta Tennis folder.
3. Run FT_Launcher.exe.
4. Open Advanced Options.
5. Set:

Priority = 0

1. Let the launcher download and apply patches.

Important: Do not interrupt the patching process.

Step 4: Do Not Start the Game Immediately After Patching

After patching is complete:

1. Do not click BAT files.
2. Do not start the game immediately from the patcher.
3. Close the launcher.
4. Close Q4Wine completely.

Optionally restart the Steam Deck to make sure Wine and anti-cheat related processes are fully closed.

Step 5: First Actual Game Launch

After the first patching process:

1. Open Q4Wine again.
2. Run FantaTennis.exe directly.
3. Set the virtual desktop size:

Virtual Desktop Size = 1920x1080

1. Open Advanced Options.
2. Set:

Priority = 0

1. Confirm and launch the game.

The anti-cheat may initialize required components. This can take a moment.

Do not interrupt this process.

Step 6: Regular Steam Deck Use

After the first successful launch:

1. Run FT_Launcher.exe first.
2. Let it check and apply patches.
3. Close the launcher completely.
4. Run FantaTennis.exe directly through Q4Wine.

This method can help avoid anti-cheat lockups and startup issues.

Steam Deck Notes

• The game must usually be launched from Desktop Mode.
• Steam / Proton direct launch may not work correctly.
• If the game hangs on the anti-cheat screen, restart the Steam Deck.
• If Q4Wine remains stuck, close it completely or reboot before trying again.

Recommended Launch Order

For Windows:

1. Run FT_Launcher.exe.
2. Let the game update.
3. Start the game.

For Steam Deck:

1. Run FT_Launcher.exe through Q4Wine.
2. Let the game update.
3. Close the launcher.
4. Run FantaTennis.exe directly through Q4Wine.

Related Pages

• Troubleshooting – common errors and fixes.
• Items – explains Item-tab objects, Quick Slot items and Buff Items.
• Stats – explains stats, attributes and secondary stats.
• Enchantment – explains the Enchant system.