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Mother Shmupper is an independent publication launched in May 2026 by DrbossKey. Shmups, Shoot'em Ups, Shooters, I make shmups, first Interstellar Sentinel & Interstellar Sentinel 2 - Wishlist on Steam! Subscribe today for email newsletters about new content when it's available. Eventually, we'll figure out additional perks and sneak peeks (early playtesting for Caravan levels, maybe?), but for now, all content is just out there to be enjoyed. Your subscription makes this site possible, and allows Mother Shmupper to continue to exist. Thank you!

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