Part of the classic game compilation developed by HOT-B, Over Horizon launched in Japan and PAL territories for the Nintendo Famicom and NES consoles. Music for the science fiction sidescrolling shoot-em-up is composed by Masaharu Iwata.
Steel Empire is set in an "Age of Steel" dominated by limitless steam engine technology. Developed by Hot-B under lead game designer Yoshinori Satake, the steampunk-themed sidescrolling shoot-em-up depicts a fantasy vision of the 19th century, spanning seven intricately designed stages and high energy boss fights.
Music for the game is by Noriyuki Iwadare, Yoshiaki Kubotera, and Isao Mizoguchi. Steel Empire for 3DS Original Soundtrack is streaming on Spotify, arranged by Katsutoshi Hasegawa. The Mega Drive soundtrack is streaming on Apple Music and YouTube Music, published by Clarice Disc.
ININ Games previously published Over Horizon x Steel Empire, available for PlayStation 4 and Nintendo Switch consoles, comprised of the shoot-em-ups Over Horizon (1991), Steel Empire (1992) and Steel Empire (2004).
From the Over Horizon x Steel Empire product page:
In Over Horizon, you and your trusty spaceship will traverse a number of bizarre worlds. With three different weapons which you can upgrade and combine any way you want, you will face the massive bosses and various enemies that will come your way.CDJapan - Steel Empire Chronicles - Limited Edition
Also, relive gaming history and fire up your engines on some of the most important classic shmups – fully playable on modern platforms. Set in a Steam Punk-centered world, Steel Empire lets you choose between the Striker Airplane or the Zeppelin equipped with an areal mine launcher to fight back against the Motorhead Empire's invasion.
Play-Asia - Steel Empire Chronicles - Limited Edition
Steel Empire Mega Drive Soundtrack - Apple Music / YouTube Music
【新作情報】7/31発売予定!
— メビウス@ゲーム開発&販売 (@digitalmebius) May 12, 2025
「鋼鉄帝国-STEEL EMPIRE-クロニクル」限定版同梱の
2枚組サウンドトラックはオリジナル、
携帯機版、HD全ての「鋼鉄帝国」の楽曲、
加えて「オーバーホライゾン」の楽曲が入った
永久保存版!#鋼鉄帝国#オーバーホライゾン pic.twitter.com/Aguaa5KilM