Setting
Sci-fi / futuristic
312 games
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Obsidian
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Oddworld: Abe’s Exoddus
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Odysseus Kosmos and his Robot Quest
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Of Light and Darkness: The Prophecy
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Omikron: The Nomad Soul
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Opsys
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Orion Burger
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Out of Order
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Outcast
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Overclocked
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Paradigm
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Paradise Cracked
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Perils of Man
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Phantasmagoria 2: A Puzzle of Flesh
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Plan 9 From Outer Space
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Planetfall
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Pollen
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Primal Rage
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Prisoner of Ice
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Project Eden
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Prominence
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Psychonauts
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Psychonauts in the Rhombus of Ruin
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Puzzle Bots