Hans-Christian Vortisch
Hans-Christian Vortisch has written at least 3 books. Their most popular book is GURPS High-Tech with 2 saves with an average rating of -⭐.
 GURPS High-Tech GURPS High-Tech
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 GURPS Tactical Shooting GURPS Tactical Shooting
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 GURPS Modern Firepower GURPS Modern Firepower
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