UFO_2D2

Note: you have to have java installed java download

Windows:

1. Download the Windows file from the download section.

2.Extract the file.

3. Run the UFO_2D2.exe

Linux Amd64(non raspberry pi users):

1. Extract the file.

2. Open the new folder.

3. Right click and press "Open in terminal" on the background.

4. run chmod a+x UFO2D2

5.  run ./UFO2D2 (on newer ubuntu versions you can right click and press run as program)

6. Enjoy.

Raspberry PI:

i have no idea but if you are trying to play games on you can probably figure it out.