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Aeternum is an original side-scrolling shoot 'em up featuring five stages of intense bullet hell action. Face off against eight bosses, cats in teacups, and spaceship faring corgis choosing to play from 4 different modes and 5 difficulty settings. Ellica is a Demonic Magic Studies student at one of the most prestigious schools in the realm, Aeternum Academy. But her schoolwork has to take a back seat one day when she discovers her best friend Macy is missing! Help Ellica brave the crazed groundskeeper, an overzealous hall monitor and waves upon waves of wayward flying cats in the adventure of a lifetime... or maybe just the adventure of this week.
Xbox 360 · Dec 31, 2012
North america · Exact date · IGDB
PC (Microsoft Windows) · Oct 10, 2013
North america · Exact date · IGDB
PC (Microsoft Windows) · Jul 18, 2017
Worldwide · Exact date · IGDB
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16 achievements available.

Clear the Extra stage on the Demonic difficulty.
LockedSteam

Clear the Extra stage on the Lunatic difficulty.
LockedSteam

Clear the game on Story, Arcade, Arrange and Extra modes with Aubrey on Demonic Difficulty or better.
LockedSteam

Clear the game on Story, Arcade, Arrange and Extra modes with CeeBee on Demonic Difficulty or better.
LockedSteam

Clear the game on Story, Arcade, Arrange and Extra modes with Ellica on Demonic Difficulty or better.
LockedSteam

Defeat Candynce Sky on any difficulty.
LockedSteam

Defeat Millicent Elmsley Charles Helena Astor on any difficulty.
LockedSteam

Defeat Samantha Clementine on any difficulty.
LockedSteam

Defeat Greytail the Wicked on any difficulty.
LockedSteam

Defeat Winter on any difficulty.
LockedSteam

Clear Story mode without continuing on the Demonic difficulty.
LockedSteam

Clear Story mode without continuing on the Lunatic difficulty.
LockedSteam

Clear Story mode using any character without getting hit and without using a bomb on Demonic Difficulty.
LockedSteam

Clear Story mode using any character without getting hit and without using a bomb on Lunatic Difficulty.
LockedSteam

Clear Story mode using any character without getting hit and without using a bomb on Normal or Hard Difficulty.
LockedSteam

Complete the tutorial.
LockedSteam
Community notes