#Grogpiphany – Operation Shoestring (@gmtgames, 1990) September 20, 2018 ~ RockyMountainNavy My latest grogpiphany is Operation Shoestring from GMT Games. Designed by Gene Billingsley and released in 1990. Full thoughts coming later this week. Share this:TwitterFacebookLike this:Like Loading... Published by RockyMountainNavy Wargame Grognard, Boardgamer, and Sci-Fi RPG playing since 1979. View all posts by RockyMountainNavy