This was very unsettling, you created some brilliant atmosphere here and I loved how slow-burn the scares were. The moment when the lights went off was very well-done. Also it was pleasantly suprising to have control over most of what you type, it was a nice touch and made the few moments when something different to what you typed much creepier (especially when my name came up). Does make me wonder how much it can react to what you type.
Slight Spoiler: The final scare did loose some of the tension by having the figure run at you, personally I think if it just went black when you saw the figure that would have kept the unease going (especially because the text afterwards was still very creepy) but that might just be a personal preference. It didn't take away from how effective the game was overall and I'm really glad I gave it a go.