Ludum Dare 36: Ancient Technology. Made by me and my friend Jakob. This is our first gamejam.
Link to entry: http://ludumdare.com/compo/ludum-dare-36/?action=preview&uid=113447.
If you can't use the download link at the jam-entry, then you can run the game by first installing love2d. To do this go to https://love2d.org/ and download the love application. Then drag and drop this repository onto the application you just downloaded.
Use the mouse to select a point. Then spin around that point using A/D or Left/Right.