Portal Proficiency new DLC adds more levels

Originally published at: https://linuxgameconsortium.com/linux-gaming-news/portal-proficiency-new-dlc-releases-more-levels-79894/

Portal Proficiency new DLC adds more levels to Bridge Constructor Portal on Linux, Mac and Windows PC. Thanks to the continuing efforts of developer ClockStone. The new content is live on Steam next week. Since Portal Proficiency will arrive in just one week, November 12th. ClockStone Software will also release the first DLC for game.…