Thanks for the replies Stardust, I'm fine for you to beat me on negativity, my goal is optimism and success.
I understand that I will likely get few downloads for each game, but the idea is that if one in five does well, then it's worth it, making a load of games rather than one is like spread betting, you release a number of games and hope one does well. MY space invaders game now has over 400k downloads so I know it's possible.
Also, I know there's many clones already out there, but most are terrible and have awful controls. So it's not hard to release something better.
I'm sticking with the following rules.
- Simple sound effects
- Simple graphics (maybe just shapes)
- Google play high score table
- Simple achievements
- IAP to remove ads
- Simple easy controls
- Cross promote to my other games to help with downloads
I still want to make a living from games, so the ads are needed I'm afraid.