Did these reviewers play the same demo as me? There's NO GAME here, it's a rough introduction to gameplay mechanics at best.
You should really offer more before begging for money, maybe a definite hint of genre? At the moment I can't tell if I'll be solving a mystery, hiding from a serial killer, learning dark magic, or thwarting an alien invasion. All you've given the player is a VERY generic setting and no one should pay money towards just that.