Yeah, maybe you should leave this 'game one' notification out of the title... Maybe try something else like Rebel Planet series: Project Orion or just Rebel Planet: Orion or maybe something like Rebel Planet Series: Orion's Tale .... Don't know, but the 'game one' thing isn't awful, but it's more professional to not put something like that in it, or so I think
... I like the music of the trailer by the way, very relaxing
..
Cheers