In Projectm: Daydream, players engage in minimal interaction, primarily through looking at icons and text dialogues while experiencing the protagonist Dong-Woo's daydreams. The gameplay emphasizes a narrative-driven experience rather than traditional mechanics.

The storyline of Projectm: Daydream follows Dong-Woo as he visits Seung-Ah's house after summer vacation, where he drifts into daydreams about exciting adventures like skydiving in Switzerland and relaxing at a beach in Spain. These daydreams serve as a backdrop for their conversation about summer memories.

Projectm: Daydream stands out with its immersive VR experience, allowing players to feel as if they are part of Dong-Woo's dreams, enhanced by a diverse language interface and a focus on visual storytelling.