Saigo no Uta (サイゴノウタ)

Overview
Saigo no Uta (サイゴノウタ, lit. The Last Song) is a Japanese Yume Nikki Fangame made by Saki-Izuriha (出灰サキ)(Pixiv) who also developed De I Cide. The author noted that Version La Fine is the final version.

Gameplay
You start as a girl named Kuroyuri (黒百合) who seems to be trapped in a hospital ward which was messed up with lots of blood and she cannot open the door, she can travel to her dream world by sleeping in the bed. Once she sleeps, she will enter room that is similar to her ward, but has a bloody magical circle on the wall. If she interacts with it, it will lead her to the magical circle Nexus that has 4 different color triangles that lead to another worlds.

After you achieved the "Game Over" ending, you will start with Ciste (シスト), a girl who appears in Kuroyuki's dream. Same as Kuroyuki's gamplay, she enters the dream world and collects effects. In the dream room, there's a radio that allows you to listen the game's BGM.

Kuroyuri's Effects
In Kuroyuri's dream world, the effect names in the menu are mostly written in Hiragana, but in the reality world they will change into German / Deutsch or some Kanji.