I saw 40+ fantastic comments in this HN thread about gaming with eye tracking: https://news.ycombinator.com/item?id=10524371
It was written by a games journalist and the comments in the thread were fantastic - honest and useful. (all gold to us, I work at Tobii Eye Tracking)
We decided to let the HN community try it out for themselves - by tweeting "let me try @tobiieyex via #hackernews!”
That's really it. We will DM you for shipping details. More than 10+ amazing eye trackers are up for grabs!
Let me know if this hits the spot or misses it by a mile.