Okay, it might take longer than I thought.

Puzzles

Einst erwachte ein Auge am Himmel und streute Staub in die Meere. Der Meteor fiel und erzeugte milchige Splitter. Yuxozsqe mdotubqxmsa

Undertale, but nothing's wrong.

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UTDR Styled - Toobur (Stickman OC)

DzhegurS Stardew Valley

The one-eyed leader

YOU'RE NOT REAL

For some reason, I feel a kind of nostalgia for the movie Among Us... This is probably related to the series.