Go to Fiverr.com and search for Game Trailers. Get one made. If you don't have a game trailer your Kickstarter will fail. Just look at the other Kickstarters, and you'll see what I mean.
https://www.fiverr.com/bramskh/create-trailer-game-or-app-trailer-video-editing?context_referrer=search_gigs&source=top-bar&ref_ctx_id=c10c713a-f158-4c1b-b30b-7e574fe71318&pckg_id=1&pos=1&context_type=auto&funnel=c4988daa-3dab-46d3-9f07-9423ddb265f8&seller_online=true Boom. Done.