Because we all have too much free time
Along time ago — either when I was in college or shortly afterward, I was introduced to a cute little game called Glider. You controlled a paper airplane as it wended its way throughout a house frought with dangers like floating balloons, sparking elecrical outlets, inopportunely placed cabinets, etc.
Naturally, I played it for hours and hours.
Glider used to be produced by Casady & Greene, but they went bankrupt recently. The rights to the game reverted to its author who is now giving away copies for free (complete with serial number). He is offering versions which run on OS10, 9, 8, and maybe even 7.
The game was originally designed for Mac but the site offers a free, older PC version as well. Enjoy! Don’t forget to download the extra houses!