The Atomiswave is a custom arcade system board and cabinet from Sammy Corporation. It is based on Sega's Dreamcast console, sharing similarities with the NAOMI, as far as it uses interchangeable game cartridges, as well as a removable module for changing the control scheme (including dual joysticks, dual light guns and a steering wheel), but unlike the NAOMI, the Atomiswave does not feature expanded RAM compared to the Dreamcast.

With the retirement of the aging Neo Geo MVS system, SNK Playmore chose the Atomiswave as its next system to develop games for. In a contract with Sammy, SNK Playmore agreed to develop five games for the Atomiswave system. Metal Slug 6 was SNK Playmore's fifth game for the Atomiswave, after which SNK moved on to a Taito Type X2 arcade board. Sega ended technical support for the system and its games on March 31, 2017. Since its discontinuation, the Atomiswave library has received homebrew conversions to the Dreamcast.

Specifications

CPU: Hitachi SH-4 32-bit RISC CPU 200 MHz Rated performance: 360 MIPS/1.4 GFLOPS Graphics processor: PowerVR 2 100 MHz Polygon performance: 3 to 5 million polygons/sec Rendering speed: 500 M pixels/sec Additional features: bump mapping, fog, alpha-blending (transparency), MIP mapping (polygon-texture auto switch), tri-*linear filtering, anti-aliasing, environment mapping, and specular effect Sound processor: ARM7 Yamaha AICA (with internal 32-bit RISC CPU, 64 channel ADPCM) 45 MHz Memory System: 16 MB Graphics: 8 MB Sound: 2 MB Storage media: ROM board

AW-net In Japan, the Atomiswave was able to connect via a special modem to the AW-Net online system set up by Sammy. The AW-Net was primarily used to play online with other players and to create online player rankings. AW-Net was discontinued on 30 November 2006 following the merger of Sammy and Sega; the follow-up system was ALL.Net.

Games The games were developed for the system by several companies, including Arc System Works (founded by ex-Sega employees), Dimps (founded by ex-Capcom employees), and Sega Amusements USA (formerly Sammy USA Corporation; founded by ex-Atari employees as American Sammy in California in 1988, then moved to Illinois in 1992, adopted by ex-Midway employees, and rebranded as Sammy USA Corporation in 1996; rebranded as Sega Amusements USA in 2006). Released

Title Publisher/Developer Genre Year Animal Basket (Japan: Hustle Tamaire Kyousou) Sammy, Moss Sports 2005 Block Pong Pong Sammy, Moss Sports 2005 Demolish Fist Sammy, Dimps Beat 'em up 2003 Dirty Pigskin Football Sammy USA Corporation, Play Mechanix Sports 2006 Sammy Platformer 2003 Extreme Hunting Sammy USA Corporation Lightgun shooter 2005 Extreme Hunting 2 Tournament Edition Sega Amusements USA Lightgun shooter 2006 Faster Than Speed Sammy USA Corporation Racing 2004 Fist of the North Star (Japan: Hokuto No Ken) Sega, Arc System Works Fighting 2005 Guilty Gear Isuka Sammy, Arc System Works Fighting 2003 Guilty Gear X Version 1.5 Sammy, Arc System Works Fighting 2003 The King of Fighters Neowave Sammy, SNK Playmore Fighting 2004 The King of Fighters XI Sega, SNK Playmore Fighting 2005 Knights of Valour: The Seven Spirits Sammy, IGS Beat 'em up 2003 Maximum Speed Sammy, SIMS Racing 2003 Metal Slug 6 Sega, SNK Playmore Platformer 2006 Miracle Stadium Sammy, Moss Sports 2005 NeoGeo Battle Coliseum Sega, SNK Playmore Fighting 2005 Net Select Keiba Victory Furlong Sammy Sports 2005 Net Select Salary Man Kintarou Sammy Mahjong 2004 Ranger Mission Sammy USA Corporation, RIZ Inc. Lightgun shooter 2004 The Rumble Fish Sammy, Dimps Fighting 2004 The Rumble Fish 2 Sammy, Dimps Fighting 2005 Samurai Spirits: Tenkaichi Kenkakuden Sega, SNK Playmore Fighting 2005 Sega Bass Fishing Challenge Sega Amusements USA Sports 2009 Sega Clay Challenge Sega Amusements USA Lightgun shooter 2008 Sports Shooting USA Sammy USA Corporation Lightgun shooter 2003 Wai Wai Drive Sammy, Moss Driving 2005

Unreleased Sushi Bar (Sammy, 2003) Premier Eleven (Sammy/Dimps, 2003) Chicago 1929/Chase 1929 (Sammy USA Corporation, 2004) Force Five (Sammy, 2004) Kenju (Sammy/DreamFactory, 2004)

References

External links

System16.com's Atomiswave Hardware page https://segaretro.org/Atomiswave