Broken Bottles is a Yume Nikki fangame created by a user called "Doodle" (tumblr and pixiv accounts). You play as a young girl named Dokutsuki. Her name roughly translates to 'Poisoned'.
"It holds the same main idea as Yume Nikki, you explore a girl's subconscious by falling into an induced sleep and you find what may lie in her mind. It might have a meaning, it might not, you decide. This game is intended to have a dark atmosphere, but it may be happy at times. You start out in a corridor of doors, pick the one you want to start in while you explore. The effects change what the character looks like and sometimes their abilities. If you equip the same effect twice, you will return to your normal self. Just wander around and enjoy."
~Quote from the Official Website
Effects
There are four effects in Broken Bottles.
Glass Shard is like the knife effect in Yume Nikki. It is Dokutsuki's weapon and used to kill NPCs. It is located in Broken Glass World. Go through the brown door south of the Nexus door in Boom World. Interact with a box at the top left of the room. Go through the new door that appears, and interact with the bleeding severed hand.
Skull is a purely cosmetic effect. It turns Dokutsuki's head into a rotted, yellow skull. It is found by interacting with a skull and bones in Boom World. It is located southwest of the Nexus door.
Bandages is a purely cosmetic effect. It puts bloody bandages around Dokutsuki's head. It is located in the Hospital.
Voiceless is a purely cosmetic effect. It puts a gag around Dokutsuki's mouth. It is located in Words World. There are two gagged yellow faces with the word "WHAT" above them. Go between these faces and enter Words World. Interact with another gagged face in this world to receive this effect.