OMORI x Yume Nikki Crossover Fangame

3.9 / 5

15,522 plays

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Game Information

Developer: SZ Games

Rating:

3.9/5

Released: April 2024

Last Updated: June 2025

Technology: HTML5 (Unity WebGL)

Platform: Browser

Size: ~15 MB

Plays: 15,522

Mobile Support: Yes

About OMORI x Yume Nikki Crossover Fangame

Embark on a surreal journey with "OMORI x Yume Nikki Crossover Fangame"—an electrifying, free online action title that fuses two legendary indie universes. Step into the shoes of Madotsuki as she ventures beyond her own dreams, joined by her new companions in the whimsical realm of HEADSPACE. Fans of both OMORI and Yume Nikki will immediately recognize the signature psychological storytelling, layered with familiar surreal visuals and delightfully quirky effects.

This fangame stands out with its bold HTML5 graphics—ethereal landscapes swirl with pastel colors, pixel art details, and ever-shifting backdrops. Each environment brims with secrets, inviting exploration and experimentation. You'll battle bizarre, memorable enemies, each requiring strategic use of your growing arsenal of Effects—special abilities that shift both gameplay and the dreamlike atmosphere. Whether you’re dashing through uncanny corridors or switching Effects on the fly, the gameplay is smooth, accessible, and surprisingly deep.

Perfectly tuned for both casual explorers and hardcore fans, the easy difficulty curve welcomes new players into the worlds of OMORI and Yume Nikki. Responsive keyboard and controller support give you the freedom to play your way, whether on desktop or mobile. The game’s intuitive setup means you’re always just one button away from your next adventure, discovery, or epic boss battle.

Immerse yourself in heartwarming, humorous, and sometimes haunting moments as you forge bonds with both beloved original and crossover characters. Collect rare Effects to unleash powerful abilities, solve mind-bending puzzles, and unlock unique endings. Each session promises new secrets to unravel, encouraging replayability and cementing this fangame as a must-try browser adventure.

Dive in and share your experience—there’s a whole dreamworld waiting to be explored. Will you uncover every hidden Effect and lead Madotsuki and her friends to victory? Play free on itch.io and let your imagination run wild!

How to Play

Begin your dreamlike adventure by launching the game in your browser—no downloads required! Control Madotsuki and her friends through HEADSPACE’s entrancing environments. Use WASD keys to move your character, Z to interact with objects and NPCs, and X to toggle through collected Effects. Need to pick up the pace? Hold Shift to sprint across surreal landscapes, evading unexpected hazards or reaching hard-to-find secrets faster. Controller support lets you play with a joystick (to move), A (to interact), triggers (to switch Effects), and X (to run).

Start by exploring freely—many secrets are hidden in plain sight. Talk to every character and examine everything; Effects can be found just off the beaten path. As you progress, new areas and powers unlock, and enemies appear. Combat encourages experimentation; switching Effects mid-battle often reveals powerful synergies or creative solutions.

For beginners, take your time—there’s no lengthy tutorial, but intuitive controls and friendly difficulty make diving in easy. Remember to revisit previous zones with new Effects to unlock previously unreachable places. Save often and experiment—you never know when an Effect, item, or secret boss will change everything!

Whether on mobile, tablet, or PC, the HTML5 platform ensures seamless play. Adjust your strategy, make friends, and enjoy the dreamy crossover at your own pace.

Controls

mouse

keyboard

Tips & Tricks

Test all newly acquired Effects on both enemies and the environment—many unlock hidden paths or events.
Revisit earlier areas after gaining new Effects; secret rooms and bonus bosses often appear only later.
Interact with every character. Some offer unique side quests or riddles tied to new abilities or rare items.
Switch Effects rapidly during combat to shock your enemies and maximize your advantage.
Save before important choices—multiple endings mean your decisions truly shape the dream world.
Experiment with both keyboard and controller to find your ideal playstyle; both are fully supported.
Explore during different in-game times—some rare phenomena only appear under certain conditions!

Game Features

Seamless crossover between OMORI and Yume Nikki universes with favorite characters and new surprises
Dreamlike pixel art visuals and atmospheric backgrounds redesigned for browser and mobile play
Unique Effect mechanic lets you customize abilities and playstyle in real-time
Multiple endings and branching pathways for high replayability
Intuitive controls, easy entry difficulty, and responsive gameplay on any device
Humor, heart, and a touch of psychological mystery woven into every interaction
Totally free—play instantly via itch.io, with no installation required

Frequently Asked Questions

Is OMORI x Yume Nikki Crossover Fangame completely free to play?

Yes! This fangame is 100% free to play on itch.io, right in your browser. There is no need to download anything or make purchases. Just launch and start adventuring instantly!

Do I need to have played OMORI or Yume Nikki to enjoy this game?

No prior experience is required! While fans will appreciate hidden references, newcomers are welcomed with accessible gameplay and an engaging introduction to both universes.

Is my progress saved if I switch devices or close the game?

Progress saves locally in your browser data. Be sure not to clear your cache if you want to retain your game state. Cross-device cloud saves aren't available at this time.

What devices can I play OMORI x Yume Nikki Crossover Fangame on?

The game is fully compatible with PCs, laptops, tablets, and most mobile phones thanks to its HTML5 foundation. Both keyboard and game controllers are supported.

Are there any hidden endings or secret bosses?

Absolutely! Multiple endings and several secret bosses await those who thoroughly explore and experiment with all available Effects. Replay and discover them all!