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Bloodtide (1982)

IMDb: 4.1
1982

An adventurer hunting for treasure in Greece accidentally frees a monster that forces local villagers to sacrifice virgins

Living Hell (2008)

IMDb: 4.6
2008

A mild mannered teacher and a hazmat specialist have to figure out how to stop an unstoppable creature who feeds on light and energy, and moves with exponential speed, before it destroys everything in its path