Excess has just released a work in progress "Vertical Shooter" for the C64. Although it is in very early stages with no sound being played in the game and no hit damage, it does look like it could be a great game when it's finally finished. Vertical Shooter does have a great crack intro and smooth in game controls, so if you're interested it is available to download and play for free.
Original Supply .... Nimbus of Excess
Linking .... Stormfront of Covenant, Excess, The Stock