Colonist.io - Free online alternative to the popular board game Settlers of Catan. Play single or multiplayer, with expansions, custom maps, and more. No download or sign up required!
CATAN - Overhead Distribution Powerline Design
Catan Universe - Play anytime, anywhere - against all Catan players worldwide.
TL Pro - Overhead power line design software.
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Power Lines Pro - Intuitive and powerful overhead power line design software