Eccoes is my attempt at creating a computer game geared around time travel. After realising how complicated it could be, I decided on a simple mechanic. The player can return in time to the start of the level, interacting with past copies of himself. Of course, great minds think alike, and I have found a couple of games that have simliar functionality. Braid. In Company of Myself, and Chronotron are all games that capture what I was going for. I think that I can still create something unique, so I haven't given up on it yet.
I have a proof of concept done to show that the game mechanic is possible. I've programmed it using Game Maker 7 and default graphics. At this point, all I have is the game mechanic, so I've got a lot of work to do.
Download Eccoes Tech Demo (Windows)
Use the arrow keys to move, and the space bar to use the time travel ability. The counter is the current 'time'.