Unofficial add-ons for Quake games
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Zaero for Quake II
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X-Men: The Ravages of Apocalypse
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Universe of Levels: Das Ultimative Add-On Ereignis!
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Ultra Level Add-On
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Tremor for Quake
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Superdead
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Shrak for Quake
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Qu.......ke
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Q!Zone
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Quake'em
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Quad Damage
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Q2
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Phenomenon
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Malice: 23rd Century Ultraconversion for Quake
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Juggernaut: The New Story For Quake II
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Eternal Darkness: 100 new levels for Quake
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Earth-Quake
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Dark Hour for Quake
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Aftershock for Quake
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Aftershock Toolbox for Quake
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Abyss of Pandemonium