Top similar games like Ocnus Theory:

The Fire is a difficult 3D platformer in a world that grows around you.

An immersive survival crafting adventure game set on an alien planet. Explore the surroundings and build an understanding of the world around you. Create tools, devices, and structures to overcome the limitations of the harsh environment and unravel the mysteries of the unknown signals.

Play as android MIO in this mesmerizing metroidvania where you explore the Vessel, an enormous technological ark overgrown with machines gone rogue. Uncover its secrets, enhance MIO's abilities, and save the spaceship and its residents from oblivion.

Wake up in a war torn city, as you are hunted by formidable robotic invaders and desperate survivors alike. Prevail against powerful foes by discovering new abilities and testing your skills in a challenging 2-D metroidvania, all while learning the truth behind the mysterious Red Sun.

A 2D platformer Metroidvania with deep movement and no jump button. Upgrade your umbrella to explore an abandoned planet and ascend to the moon.

Dash into a stylish and thrilling action-adventure platformer set in a mythological Persian world where the boundaries of time and space are yours to manipulate.

Anokye is a 2D action–adventure platformer where you play as a destined hero fighting to unite the Ashanti people. Battle through villages, forests, and mystical peaks inspired by Ghanaian art and folklore in a journey to restore light to a kingdom in darkness.

Dive into the decaying machine world of DREIFRAME, a pixel-art metroidvania packed with challenge. As a Frame, a sword-wielding robot, fight brutal enemies, exploit their weaknesses, unlock powerful but risky abilities, and uncover the land’s story through exploration and combat.

Scale into ever-smaller nested worlds. Shrink into your spaceship's mechanisms. Uncover the fractal worlds within and meet the zany goobers who call them home. Track down the root of the system errors, whether by replacing old gears or getting Grandma Beetle's bakery back in business. 

Discover the power of healing through the pursuit of mastery in the art of waterbending. Learn new skills, explore a living world full of riddles and mysteries that plague the peace between the material and spiritual world. A hand-drawn 2d platformer inspired by digital oil painting.

Experience the freedom of unbounded climbing as you take control of BUD, a procedurally animated robot on a quest to save his planet. Create your own path through an alien world as you control and ride a giant plant on a vertical journey to the stars.

You are a nomadic slugcat, both predator and prey in a broken ecosystem. Grab your spear and brave the industrial wastes, hunting enough food to survive, but be wary— other, bigger creatures have the same plan... and slugcats look delicious.

Welcome to the world of Coal Mining! Start with almost nothing and get to the top - develop your mine, sell coal, buy new machines and avoid dangers in this sandbox simulator. Take control of numerous mining machines. Destroy, mine, drill, transport and blow things up.

Forge your own path in Hollow Knight! An epic action adventure through a vast ruined kingdom of insects and heroes. Explore twisting caverns, battle tainted creatures and befriend bizarre bugs, all in a classic, hand-drawn 2D style.

Save a friend in an exciting platformer with a cat hero! Complete challenges and uncover the story of friendship. Beware of mistakes, plan every jump, and achieve success in this captivating platformer.

The legendary Knytt series continues with Nifflas’ latest creation; Knytt Underground. In this Knytteration; humans have long since abandoned the planet after practically destroying it in a war, five hundred years ago.

A 3D physics-based rage game. Reach the end of a colorful low poly open world by shooting the chicken from one cannon to another! Compete with the community to get the best time (if you ever manage to finish the game).

Roll, jump, and dash your way through a cozy physics platformer. Explore vibrant, handcrafted levels, find your glowing companion, and unlock the path forward in this satisfying, minimalist adventure.

Star Hearts: Launch Point is a tight 2D action adventure featuring an 8-bit retro aesthetic in classic NES-fashion. Journey to the galaxy’s edge and discover the origins of Prin - an interstellar revolutionary in the making - as she embarks upon her first space-faring adventure!

This is a difficult game that takes the best from Dark Souls - the ROLLS. Combined with a first-person camera, it turns into a truly butt-blasting mix. Can you beat this?

Aeterna Noctis is a challenging metroidvania that majestically combines action, exploration and adventure. With 2 game modes and difficulty based on action or the exclusive Noctis mode where a level of difficulty is added in precision platforming never seen in the metroidvania genre.

“Aeternum Vale” is a weird atmospheric Metroidvania set in a cryptic open-world full of dangers, mysteries, and odd characters. Make friends & slice your way through this out of time realm in a infinite quest to save your soul… or give it away?

Find a way through the towers and dungeons of TRI by solving puzzles, climbing impossible ascents and reflecting light-rays. The mystical TRI will let you create your own paths in this strange world – just try not to lose your mind when you're falling upside down!

You Have to Win the Game is a free exploration platformer with a retro 1980s PC aesthetic.

Immerse yourself in this strange Colorless World. Unleash new mechanics and defeat obstacles, monsters, and bosses. As you unravel a hidden story told between the lines that will shape your ultimate destiny.

Beyond reason is a knowledge-based time-loop game about surviving a tiny open world. Master fluid first person combat, while uncovering the island's secrets. When you die, you take nothing but your knowledge of the world into the next loop.

Welcome to the world of Sky Sojourn! You are an adventurer who embarks on an amazing journey overcoming obstacles on floating islands. Will you be able to conquer the peaks and reach your goal? Get ready for an unforgettable climb full of amazing discoveries!

You're a ball that collects items! Vibe to original tunes in this physics based time trial 3d platformer while you push a ball through a series of dynamic obstacles that affect your movement and destroy you in novel ways.

The first of low-price series of Kimidorisoft! A hard action adventure game depicting raw egg ecstasy and bravery.Aim for a frying pan that rolls past various stages with awkward music.

Embark on a gripping journey through Neon Moon, a dynamic Metroidvania where you confront ancient adversaries, unleash extraordinary abilities, and unearth potent relics, driven by the sole desire to conquer the enigmatic Dark Night haunting Nightlight.