Tycho Curious is the son of Pascal Curious and Pollination Technician. He was conceived after his Sim father was abducted by aliens. He lives in Strangetown with his father, stepmother Erin, his half-brother Inigo, and his half-sister Jasmine.
- Tycho is named for his counterpart from The Sims 2 (PSP).
- The name "Tycho" comes from the Greek name Τυχων (Tychon) meaning "hitting the mark". This was the name of a Greek deity. It was also borne by the Danish astronomer Tycho Brahe (1546-1601).
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