Onirism is an exciting Action/Adventure game that centers around Carol, an imaginative and energetic little girl with a bit of a bratty streak. One night, Carol is jolted awake by a mysterious portal that opens in her bedroom, from which a strange creature emerges to steal her beloved Bunbun plushie. Driven by determination, Carol leaps through the portal in pursuit of her cherished toy, landing in the enchanting world of Crearia.

In the current Early Access version, players can explore the first 7 chapters and traverse 14 unique levels within Crearia. The game features over 200 distinctive weapons and gadgets to discover, allowing players to unlock various power-ups in a metroidvania style. Additionally, players can find hidden bonus levels throughout the world.

Onirism also offers a nostalgic multiplayer experience, enabling you to play cooperatively or competitively with friends in a variety of game modes. The game supports up to 4 players—one using keyboard and mouse while the others utilize controllers. Join Carol in her whimsical adventure as she encounters new friends, faces peculiar dangers, and strives to retrieve her Bunbun plushie!