If you liked this
Games like Impossible Creatures
If you finished Impossible Creatures, the closest matches are Age of Empires IV, Victoria 3, Anno 1800, Manor Lords and King Arthur: Knight's Tale. All 16 share its real time strategy (rts) genre and are ranked by how closely their themes and modes overlap.
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Age of Empires IV
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Victoria 3
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Anno 1800
Manor Lords
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King Arthur: Knight's Tale
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Stellaris
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Knights of Honor II: Sovereign
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RimWorld
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Stronghold Crusader
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Zoo Tycoon
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Bad North
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The Settlers: Rise of an Empire
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Ashes of the Singularity
Stronghold
Three Kingdoms: Fate of the Dragon
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