I was precisely going to suggest using the demo as a way to temporarily quench the thirst for the full game.
You teased with a video, then game development info.
Now, you release a demo, and it can serve to both keep people interested, and attract new potential players who weren't yet aware of the game being made.
Then, you'll publish and other video of some other part of the game, more updates on game development, and finally publish the game.
Of course, there's no guarantee that it'll work 100%, but surely that's the 2 purposes of a demo: inform, and incite.
Remember that time when we got demo cd's with a magazine, or even another game ? It was designed to inform you that the game was going to be out soon, and let you try its main features to see if you liked it.
Sure, that didn't mean you'd eagerly wait for the game to come out, but when it did, you would go "oh yeah, i know that game, i played the demo, i remember it was cool", and then bought it.
You teased with a video, then game development info.
Now, you release a demo, and it can serve to both keep people interested, and attract new potential players who weren't yet aware of the game being made.
Then, you'll publish and other video of some other part of the game, more updates on game development, and finally publish the game.
Of course, there's no guarantee that it'll work 100%, but surely that's the 2 purposes of a demo: inform, and incite.
Remember that time when we got demo cd's with a magazine, or even another game ? It was designed to inform you that the game was going to be out soon, and let you try its main features to see if you liked it.
Sure, that didn't mean you'd eagerly wait for the game to come out, but when it did, you would go "oh yeah, i know that game, i played the demo, i remember it was cool", and then bought it.