Thanks for sharing your thoughts!

At the last campaign at Indiegogo I tried it with a "serious" way. There was no cat in my video, no colourful pictures and in the video I gave my best
to motivate people to spend for it... What was the result?
After 60 days I had 100€ (means nothing cause the goal were not reached)!

Okay, you're right, I'm really not the marketing pro but I think you must do something special which sets you apart from other projects / games.
Look for example at "Plants VS. Zombies".
Who was this freak who had such an idea? But as we all know it was a huge success. Or let me take my last game, Starlaxis. It had a very normal story: Some heroes had to rescue Earth. There was nothing special about it and I think this could be the reason for it's failure. For that game I also had a publisher but it brought nothing...

Anyway, maybe someone who can sell the game better than me will see it at the campaign and says hello!

Sure thing, but that something special should align with your target audience, not with the target audiences creepy catlady. I think cats can be a good gimmick, but you are just trying too hard there. Mix the cats with actual content. It's a balance between being cool and serious, and Plants vs. Zombies pulled that off perfectly. Just look at their marketing and compare it to yours, they didn't just went "oh, we have plants. That's gotta be a cool gimmick and sell shit on its own, right?", they made an art out of selling you plants and zombies.

Everyone can think of a cool idea and a cool gimmick, but that alone won't sell. You should consider redoing your campaign, get someone to help you from the outside. Get your target audience straight, look at what they want, and then sell your game as exactly that...


... Or, you know, you can stick to this attitude and have a second failed kickstarter. Seriously, the world doesn't owe you shit. If you want something, go and get it, instead of waiting for others to come to you.
Seriously, you aren't a jack of all trades, and that's fine and there is nothing wrong with it. But in that case, get someone to help you out, instead of pretending to be a jack of all trades.

Thanks again for your clues!