I think they will have minimal impact on the pledges, simply because we already have hours and hours and hours of gameplay on youtube. The problem with the kickstarter isn’t lack of gameplay videos, but lack of awareness from the gaming public, and this won’t really change by flooding youtube with more hours of gameplay where half the time you are just following hutchins saying “3…2…1… turn left”. Most of what you did has already been done by other streamers, who have the know-how to do it with better commentary and less “oops, I blew up, lets wait 10 minutes until I get back there”. The combat parts were cool, but most people won’t watch 2 hours of video to find those parts.
Instead of “wasting” so many hours(8 devs times 2 hours=16 hours of work) with more “bland” and huge gameplay videos, I suggest you plan and film certain special shots and get other short videos ready.
Do something people can share around and actually get the word out.
Examples of special shots/videos:
-1min combat montage inside the 30km station, in the asteroid belt and in a canyon of lava(12 5 second shots, 4 on each area).
-1min “diversity” video showing all assets in the prototype, with a couple ships flying in the lava planet at night, rings, gas giant, trees, showing the stations, maybe speeding up some footage to show more stuff.
-1min “best of” footage with the best moments of todays livestream(and other dev videos)
I think it is much better to try to catch reddit’s(or other large communities) attention with a short and great video that gets shared a lot, than posting a “here is another couple hours of the same thing you already have hours of on youtube” that only people that have already pledged will watch.
I know you guys are short on time, but that is why you probably have to choose to either do those streams or do the planned videos. Or maybe do a shorter livestream with a few devs filming the shots for the videos.
I suggest you monitor how little this livestream upped the number of pledges(if at all) in the next couple of days and decide to change course in time for next weekend.