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Darksoft STV Multigame Kit | Dark Knight Edition

Product information "Darksoft STV Multigame Kit | Dark Knight Edition"

Darksoft ST-V Dark Knight Edition Multigame Kit Overview

The Darksoft ST-V Dark Knight Edition Multigame Kit allows supported games to run on compatible original Sega ST-V, also known as Sega Titan, arcade hardware.

Unlike a standard ST-V game cartridge, the Dark Knight Edition installs directly onto four keyed connectors on the original ST-V motherboard. Games are selected from a compatible microSD card with the included LCD selector or an optional OLED selector and written to flash memory.

The selected game remains stored after power is removed and stays loaded until another title is selected and written.

Flat Rate U.S. Shipping: $35.99. Insurance included. Ships with Signature Required. Ship two Darksoft Multigame Kits for the same shipping price.

Compatibility and Requirements

  • Requires a working original Sega ST-V arcade motherboard.
  • Requires a working arcade cabinet or compatible supergun setup.
  • Any terminator PCB installed in the motherboard connector area must be removed before installing the multigame board.
  • A genuine, good-quality SDHC microSD card is required and is not included.
  • The microSD card must be formatted as FAT32.
  • SDXC microSD cards are not supported by the installation guide.
  • Game software is not supplied with the multigame kit.

Dark Knight Edition Design

Four-Connector Motherboard Installation

The multigame board attaches directly to four keyed connectors on the ST-V motherboard. It does not install in the standard ST-V game-cartridge slot.

Flash-Based Game Storage

The selected game is written to flash memory and remains stored after power is removed. A new write occurs only when another game is selected.

LCD and OLED Game Selectors

The included traditional LCD selector connects to the 14-pin selector header. A compatible optional OLED selector connects to the 10-pin header and can display game images. Either selector can operate alone, or both can be connected and used together.

Batman Forever Sound-Board Connector

The Dark Knight Edition includes a connector for a compatible genuine or reproduction Batman Forever sound board used for that game’s stereo audio.

Installing the Multigame Board

  • Disconnect all power before removing or handling the ST-V motherboard.
  • Discharge static before handling the original motherboard or multigame board.
  • Remove any terminator PCB installed in the connector area.
  • Position the multigame board directly above all four motherboard connectors.
  • The connectors are keyed, but all four must be fully aligned before pressure is applied.
  • Support the underside of the original ST-V motherboard during installation to prevent excessive flexing.
  • Press gently and evenly at each connector until the multigame board is fully seated.
  • Never force the board onto a connector that is not correctly aligned.

Important Connector Warning

Confirm that the multigame board is aligned with all four motherboard connectors before pressing it into place. Support the original motherboard from underneath and use only gentle, even pressure.

Optional Auto-Reset Wire

The optional auto-reset connection allows the ST-V system to reset after a different game is written.

  • One included DuPont wire is soldered to Pin 8 of IC12 on the original ST-V motherboard.
  • The other end connects to the multigame board’s reset connection.
  • Without this optional connection, the system must be power-cycled after a new game is loaded.

Pin 8 of IC12 can be damaged by excessive heat or incorrect soldering. This connection should be completed only by someone experienced with precise arcade-PCB soldering.

Optional Start and Finish Audio

An optional audio wire allows customized sounds to play through the JAMMA audio output when game programming begins and ends.

  • The audio wire is soldered to Pin 13 of the motherboard audio amplifier.
  • The other end connects to the multigame board’s audio connection.
  • The feature uses optional start.wav and end.wav files stored in the microSD card’s sounds folder.
  • These loading sounds play through JAMMA audio.
  • They do not play through a separate stereo-audio setup that bypasses the JAMMA audio output.

This wire is optional and should be installed only by someone experienced with arcade-PCB soldering.

LCD and OLED Selector Setup

Traditional LCD Selector

Connect the traditional LCD selector to the multigame board’s 14-pin selector header. The nearby potentiometer adjusts the LCD screen brightness.

Optional OLED Selector

Connect a compatible OLED selector to the 10-pin header. The OLED can display game images when the correct logo.bin file is included in the individual game folder.

Using Both Selectors

The LCD and OLED selectors can be connected at the same time. Both displays update together when browsing or loading a game.

Preparing the microSD Card

Card Type and Format

Use a genuine branded SDHC microSD card formatted as FAT32. The installation guide states that SDXC cards are not compatible and recommends smaller-capacity cards when practical.

Game Folder Structure

Place individual game directories inside a folder named games at the root of the microSD card. Each game folder uses a name file to define the title shown on the selector.

OLED Images

An optional logo.bin file can be placed in each game folder to display an image on the OLED selector. The guide specifies a source image size of 128 × 56 pixels before conversion.

File Naming

Required game-file extensions must contain two characters, such as .04 rather than .4. Some files may also require the conversion described in the installation guide.

Mac File Cleanup

macOS users should remove hidden files created on removable media by following the dot_clean instructions in the installation guide.

Selecting and Loading a Game

Select a Game

Insert the prepared microSD card, power on the ST-V system, and choose a supported title with the connected LCD or OLED selector.

Programming Status

Two status LEDs illuminate while a game is being written. When programming is complete, one LED remains illuminated.

Flash Persistence

The selected game remains stored in flash memory after the system is powered off. It is replaced only when another game is selected and written.

Optional ST-V ModBIOS

A region-capable ST-V ModBIOS is not required, but the installation guide recommends it because some supported games operate only in specific regions.

Installing a ModBIOS requires programming and replacing the motherboard’s 27C400 BIOS EPROM. This modification should be performed only by someone familiar with ST-V hardware and EPROM replacement.

Firmware Updates

To install a supported firmware update, place the update file named flash.img in the root of the prepared microSD card and power on the multigame system.

The status LED changes its flashing pattern while the update is being written. Do not interrupt power or remove the microSD card until the update has finished and the required waiting period in the installation guide has passed.

Important Before Installation

  • Remove any terminator PCB before installing the multigame board.
  • Align all four motherboard connectors before applying pressure.
  • Support the underside of the original ST-V motherboard during installation.
  • The optional reset and JAMMA-audio connections require precise soldering.
  • Use an SDHC microSD card formatted as FAT32; do not use an SDXC card.
  • Do not interrupt power or remove the microSD card during game programming or firmware updates.
  • Use only game and audio data that you are legally entitled to possess and operate.
  • Disconnect power and discharge static before handling the motherboard or multigame board.

Shipping Information

Please note: This product ships with insurance and signature confirmation. Orders normally ship within 1–3 business days.

United States

  • Flat-rate shipping is $35.99 through USPS or UPS based on package size, weight, and destination.
  • Two Darksoft Multigame Kits can ship together for the same flat-rate shipping price.

International

  • Orders containing Darksoft products ship by expedited UPS international service.
  • Customs duties, taxes, brokerage charges, and import fees are the customer’s responsibility.
  • A telephone number is required for international shipments.
  • HighScoreSaves cannot under-declare shipment values.
  • Suggested tariff code: 95049080.

Darksoft ST-V Technical Support

Technical information and community assistance are available through the Arcade Projects Sega ST-V forum.

Arcade Projects Sega ST-V technical support forum
ArcadeProjects.com — Sega ST-V Support

Review the installation guide and contact HighScoreSaves or the support community before concluding that the multigame kit or another component is defective.


Frequently Asked Questions

Does the Dark Knight Edition install in the normal ST-V cartridge slot?

No. It installs directly onto four keyed connectors on the original ST-V motherboard.

Is a microSD card included?

No. A genuine SDHC microSD card must be supplied separately and formatted as FAT32. SDXC cards are not supported by the installation guide.

Can I use an OLED game selector?

Yes. The board supports the included LCD selector and a compatible optional OLED selector. Both can be connected and used together.

Does the selected game remain after power is removed?

Yes. The selected game remains stored in flash memory until another title is chosen and written.

Is soldering required?

The multigame board itself installs onto the four keyed motherboard connectors. Soldering is required only for the optional auto-reset and JAMMA loading-audio connections.

What happens without the optional auto-reset wire?

The ST-V system must be power-cycled after selecting and writing a different game.

Is a region-capable ModBIOS required?

No, but it is recommended because some supported ST-V games operate only in particular regions.

Where can I get technical support?

Review the installation guide and visit the Arcade Projects Sega ST-V forum .

Where can I review ST-V compatibility and setup information?

Visit the Darksoft ST-V Multigame Kits category for compatibility and installation information.

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1 review

October 15, 2025 11:28 PM

Review with rating of 5 out of 5 stars

Absolutely a must get kit

This Darksoft ST-V Multigame “Dark Knight Edition” plugs into the motherboard connectors for sturdier installation and supports game selection via an included LCD (or optional OLED). It retains the selected game in flash memory until changed and includes integrated sound prompting and LED feedback for programming status.