German publisher Headup Games is celebrating the half a million club. Today they announced 500k sales for physics-based puzzle game Bridge Constructor Portal. Bridge Constructor Portal launched late last year on PC and mobile, and earlier this year on PlayStation 4, Xbox One, and Switch.

Bridge Constructor Portal combines two successful puzzle series: Headup Games’ Bridge Constructor (developed by ClockStone) and Valve’s beloved Portal games. The gameplay tasks players with using physics and structural engineering to create bridges, ramps, and slides to ferry vehicles filled with test dummies across hazardous traps.

Ellen McLain, the iconic voice of the menacing robotic AI GLaDOS, reprises her role. She guides intrepid Aperture Science engineers through the tutorial and berates the player in classic GLaDOS style.

All 60 levels feature various gadgets and elements from the Portal games, including propulsion gel, aerial faith plates, and, of course, portals. You’ll need to make smart use of these tools to bypass the many hazards and traps, including acid pools, laser walls, and sentry turrets.

Bridge Constructor Portal is available on PC, PlayStation 4, Xbox One, Switch, and mobile (iOS, Android). It’s rated E for Everyone thanks to the stick figure art, as there is plenty of tongue-in-cheek death and violence.

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Eric has been writing for over nine years with bylines at Dicebreaker, Pixelkin, Polygon, PC Gamer, Tabletop Gaming magazine, and more covering movies, TV shows, video games, tabletop games, and tech. He reviews and live streams D&D adventures every week on his YouTube channel. He also makes a mean tuna quesadilla.