Woo-hoo, this is a good one. If you loved old-school sprite-based adventure/puzzle/dungeon games and want to mash it up with some good ol' fashioned mutant monster horror/gore (and hacking!), this is a good comic to follow. Blood Is Mine: An Interactive Webcomic
You wake up in a hospital room.
You are wearing a nurse uniform and bloody bandages. You have an empty syringe in your hand.
Something is banging at the door. It wants inside.
What do you do?
The author sets up the story, and each subsequent panel and story bit is based on what the commenters suggest. It's kind of fun seeing how more followers begin to fill up the comment section, and the story gets deeper and deeper.
from Staying Up Way Too Late Looking Up New Webcomics