Amnesia

Overview
Amnesia is a Japanese fangame that stars a ghost named Toritsuki (とりつき). Amnesia is one of the less common games made in WOLF RPG editor, but sticks to a more RPG Maker 2003/2000 feel.

Gameplay
In Amnesia, the main goals are collecting effects and viewing events to try and piece together Toritsuki's past, and how/why she died. There are several NPCs/events that seem to give hints on Toritsuki's life.

You can access the nexus by leaving Toritsuki's bedroom. Interacting with the desk in the bedroom allows you to save. There is also a minigame - NEZU - that can be played on a handheld in the bedroom.

Plot
Not much is known about the plot. Toritsuki is a ghost girl stuck in her room, seemingly unable to move on. While the circumstances of her death are not shown, many events and areas may suggest that she died by suicide.

Effects
Unlike most Yume Nikki fangames, effects can be used in Toritsuki's room because essentially the whole world is her dream/spirit world/afterlife.