Lightguns for LCDs
We’ve all seen old standup arcade games that used guns – like one of the iterations of House of the Dead or VirtuaCop. At home, who didn’t play Duck Hunt on the NES?
Unfortunately, if you try those games today – they don’t work. The mechanisms they relied on only worked on old tube-type CRTs. People have tried to make alternative mechanisms – but they relied on having to attach messy sensor or light bars around the screen. Using mechanisms like sensor bars also means you must stay in the exact same spot or re-calibrate – something that is very annoying during a long gaming session. What to do?
Andrew Sinden decided to tackle the project and came up with a brilliantly simple solution. Simply render/detect the square around the border of the game being played determine your location from that rectangle. That input is converted to mouse input/direction and voila. It works on any size display, doesn’t need recalibration, and allows for multiple players. Andrew Sinden shows off how he developed it here:
He started an IndieGoGo project, and ended up raising a whopping $4.6 million of the desired $300,000 goal.

His startup project is now a full-fledged product and he sells them over at SindenShop. They make 2 guns: with and without recoil. They run about $170/$115 respectively and come in blue, red, black, and grey if you want different guns for different numbers of players. They also now make arcade-style foot pedals for games that use those.