10 Underrated Sci-Fi Thriller Movies Scarier Than Horror

Science fiction often explores the unknown, but some films blur the line between speculative wonder and pure terror. A new list highlights 10 underrated sci-fi thrillers that deliver more genuine scares than many traditional horror movies. Titles include the mind-bending dinner party drama Coherence, Brandon Cronenberg's visceral identity-shock Possessor, and the cult space-horror Event Horizon, starring Laurence Fishburne and Sam Neill. These films use high-concept premises—parallel realities, neural hijacking, and a ship that traveled beyond known space—to create psychological unease that lingers long after the credits. Why it matters: as horror fatigue grows, audiences are rediscovering sci-fi's power to disturb through ideas rather than jump scares. The list serves as a gateway for viewers seeking intelligent, unsettling cinema that challenges the boundaries of both genres. Expect these titles to gain traction on streaming platforms as word-of-mouth spreads among genre fans.