Too many death magics have been abused for the decades of wizard war...
The spirit living in nature becomes a demon by remnants of the magics that pervaded it, and it devours all living creatures.
Wipe out infected spirits coming from everywhere with various magic
Magic Survival is a casual top-down shoot 'em up where we control a nameless protagonist with magical abilities and try to survive as long as possible while facing endless hordes of enemies.