Unidentified Flying Objects
UFO: Enemy Unknown was released by Microprose over a decade ago. For those not familiar with it and it's predecessors, or for nostalgia, here's a thorough review of one of the all time great games. It is abandonware these days and as such can be downloaded for free although you'll need DOS emulation at the least to be able to play it. The UFO series of games has a massive fan base and has such there is a number of fan-made games. Probably the highest profile project is UFO:AI , a 3D remake of the original UFO: Enemy Unknown. Now it's come out of the shadows of closed development, the project is thriving and it is evolving into a showcase open source game. There's still a little way to go - you're going to struggle if you are not familiar with standard UFO gameplay - and there are frustrated players but their issues are being addressed and, with great graphics and great music, once playability is polished the final 2.0 release should be one to savour. T...