- Year: 1997
- Platform: SEGA Saturn
- Publisher: ASCII Corporation
- Developer: Astrovision
- Theme: Anime / Manga
Shin Katei Gunkan: Kōtetsu no Kodoku (aka 新海底軍艦 鋼鉄の孤独) is a video game published in 1997 on SEGA Saturn by ASCII Corporation. It’s a strategy game, set in an anime / manga, sci-fi / futuristic, turn-based, licensed title, war and turn-based strategy themes.