Strategy

Empire Z: Endless War
Ember Entertainment(Free)
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A free zombie-fighting city-building game
Orbital Trader
Diogames(Trial version)
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Orbital Trader: A Strategic Game for Mac Users
Lux Delux
Sillysoft(Trial version)
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Lux Delux: Strategy and World Domination
Hustle Castle: Fantasy Kingdom
My.com B.V.(Free)
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Defend your castle in with this fantasy game
Hydrothermal
Nuclearnova(Trial version)
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Build your own Space colony
Strategic War
Ko-Ol(Paid)
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Compete to Take Over the World in Strategic War
Schlenderman - Wien Lockdown
TeamTurbo(Free)
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Engaging Survival Horror Game with Unique Theme
Terasology
Moving Blocks(Free)
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A free program for Mac, by Moving Blocks.
Scorched 3D
Scorched3d(Free)
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A free program for Mac, by Scorched3d.
CyberTD
Clockwork Origins(Paid)
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A full version app for Mac, by Clockwork Origins.