GOG - Free Release - Stargunner
Free Release: Stargunner
Celebrate our fifth birthday and shoot for the stars--for free!
Our fifth birthday celebrations continue with the addition of a new free game to the catalog: Stargunner, a frenetic Sci-Fi side-scrolling classic shooter, is now on GOG.com!
In a distant galaxy of Andromeda an epic struggle between two planets is drawing to a close. The greedy, powerful Zilions are gathering an almighty fleet to destroy, once and for all, a neighboring civilization of Ytimians. When their army takes flight, there is nothing that can stop them from annihilating Ytima. Unless you--one of the elite squad of Stargunners--can cripple their immense forces while they are still stationed at strongholds scattered on the surface of Zile. The challenge, even for a special forces pilot like you, is daunting. So get your laser cannons charged and lead your swift spacecraft to victory!
http://www.gog.com/news/free_release_stargunner
GOG shows us all some love with a free game... I've never played it but it looks to be a shooter of some type. I'll grab a copy and give it a try 
