Operencia: The Stolen Sun

(30/03/2020)

• Action
• Singleplayer
• Puzzle
• RPG
• Simulation
• Action-Rpg
• VR
• Indie
• Remote-Play

Operencia: The Stolen Sun embraces everything you love about classic first-person dungeon-crawlers, enhancing the old-school turn-based RPG experience with modern sensibilities. Guide a team of memorable characters through a world inspired by Central European mythology.

OPG: Clan Wars

(06/11/2024)

• MMO
• Action
• Early-Access
• Multi-player
• Open-World
• PvP
• Shooter
• Survival
• Co-op
• Massive-Multiplayer
• Remote-Play

Online multiplayer with PVPVE battles. Five game modes. Single-player, team battles, raids, global mode, and bunkers.Arena shooter, open world, quests and crafting resources await you. Join the world of OPG.

OplitisAV

(11/09/2023)

• Action
• Arcade
• Co-op
• Remote-Play

You are a Ferocious Anti-virus Systemic Trucidator (FAST), you are injected in an infected system, and your sole objective is to eradicate all virus life forms.

Opollo

(09/05/2025)

• Action
• Casual
• Indie
• Simulation
• Early Access

Little Minimalist Arcade High Score Chaser with 200+ Vehicle combinations.

OPPAI Academy Big, Bouncy, Booby Babes!

(11/05/2021)

Get reincarnated into a fantasy world, take on the role of the protagonist Takumi, and use your magic to get all the girls! Clear various quests to progress the main story of this gorgeous FANTASY VISUAL NOVEL, and capture the attractive heroines' hearts along the way!

OPPAI Ero App Academy Bigger, Better, Electric Boobaloo!

(23/05/2023)

OPPAI Ero App Academy: Bigger, Better, Electric Boobaloo is a VISUAL NOVEL set in Toaru Academy, an all-girls academy where a bigger bust indicates higher exp! Shimojo Kazuma is the first male student at the school. Will he be able to win the hearts of these buxom beauties?

Oppai Muse

(17/05/2020)

• Remote-Play

Discover your perfect MUSE amidst music beats! This is a simple SUPER CASUAL rhythm game, full of colors and beauties! Collect stars and obtain HEARTS from women! Seek your path to the perfect date! Just remember - Girls will be listening. So don't step on her feet...

Oppai Puzzle L

(20/07/2022)

It's been a busy day. Now, relax your body and come this way. ❤❤Let the elder sister come to comfort your body after a long day❤❤

Oppai Samurai: Knocked up by a No Name Novice

(18/05/2023)

She's got the bounciest boobs and the juiciest ass he's ever seen, and he has the biggest cock she's ever laid eyes on. It's a match made in heaven as the legendary Oppai Samurai gets dicked down and trains to become an even more legendary cock sleeve!

OPPAI Succubus Academy Sucky and Busty, Demonic and Lusty!

(30/07/2024)

OPPAI Succubus Academy is a VISUAL NOVEL set in Faren'ch Deshka Girls' Academy. Its students may excel in bust size, but their ero ranking has the academy on the verge of closure. It's up to Suguru and his Book of Sexy Magic to get all the succubi, teach them his ero ways, and save the day!

Oppaidius Desert Island!

(03/06/2021)

W-w-w-whaaaaat...? I'm on a desert island, alone with Angela... NAKED...? Discover what happens next in this original visual novel!

Oppaidius Tropical Cruise!

(15/01/2020)

During a cruise trip you'll never forget, you meet a beautiful, famous female singer...! Play through this different from usual visual novel, with many bizarre characters and spicy situations!

Oppidum

(22/04/2025)

• Singleplayer
• Co-op
• Cross Platform MP
• Action
• Adventure
• Simulation

Face the challenges of Oppidum, a survival adventure for 1-4 players with a unique story waiting to be unraveled. Build a camp, collect everything a fantastic land can offer, and use it to push forward through the island. A world hanging by a thread needs your help – will you answer the call?

Opportunity: A Sugar Baby Story

(12/02/2023)

An erotic slice-of-life visual novel that is just as wholesome as it is sizzling hot! Jacqueline is a single mother with bills to pay and no time for romance: until an old friend comes to her with a surprising offer.

Ops

(12/08/2024)

• Action
• Casual
• Arcade
• Early-Access
• Indie

Defend Earth from hostile aliens and hungry chupacabras in this modern classic arcade game. Created by a couple of real life VLA Operators!

Optica

(07/11/2018)

• Strategy
• Puzzle

A mind-bending puzzle game of logic and illusion. Embracing simplicity with a geometric design, Optica reveals puzzles in complex and mind-bending ways. From curious shapes and optical illusions to unexpected perspectives, Optica puts spatial thinking to the test through 70+ challenging levels.

Optika

(25/08/2016)

• Adventure
• Casual
• Puzzle
• Indie

Discover the world of light physics: play with lasers, prisms, mirrors, magnets and dozens of other optical devices. Explore the world of Optika with Prof. Opticus and his assistant, Sofia! Research and complete more than one hundred challenging puzzles!

optimal conditions for a sacrifice

(13/02/2025)

mild temperature, dim sunlight, good sleeping schedule, regular fluid intake

Optimum Link

(27/02/2019)

• Casual
• Sandbox
• Indie

Just you and the simulation. No objective.

Opus Castle

(08/11/2021)

• Adventure
• Action-Adventure
• Survival
• FPS

Opus Castle it's a 3D horror, adventure and mysterious game with a narrative based on the real tragic history of the little castle on Apa Street, located in the city of São Paulo, Brazil.

Opus Castle VR

(20/02/2025)

• Action
• Adventure
• Action-Adventure
• VR

Opus Castle VR is a 3D horror, adventure and mystery game with a narrative based on the true and tragic story of the small castle on Apa Street, located in the city of São Paulo, Brazil.

Opus Cortex: A Nonogram Puzzle Story

(06/03/2025)

• Casual
• Indie

Opus Cortex is a nonogram puzzle game with captivating story and a cast of wonderful characters. You are an AI who wakes up in an unknown location, your memory chip damaged and unreadable. In the meantime, the world faces great dangers. Will you find out what happened?

OPUS: Echo of Starsong - Full Bloom Edition

(30/08/2021)

• Adventure
• Singleplayer
• Indie
• Remote-Play

Echo of Starsong is a visual novel style adventure game. Eda, a girl who can hear mysterious sound waves known as starsong, crosses paths with a young man in search of their source. Together, they venture out to the heart of space to unravel an ancient myth.

Opus Ludum

(09/08/2020)

• Casual
• Puzzle
• Board-Game
• Indie

Opus Ludum is a game of wit and skill, where you will have to overcome various challenges that will test your razor-sharp intellect at every step. Opus Ludum will give you a break from daily stress, although it might just break your head.

Opus Magnum

(06/12/2017)

• Singleplayer
• Puzzle
• Building
• Sandbox
• Indie

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

Opus Mortem

(05/07/2018)

• Indie

Play as the Death. Test your reflexes while trying to redirect souls to their respective destinations. Don't worry if it's a bit hard at the beginning, every work gets easier with time and experience!

OPUS: Prism Peak

(01/01/2025)

• Adventure

OPUS: Prism Peak is a narrative-driven adventure game where you play a weary photographer who finds himself caught outside of reality. Using your old camera, you’ll explore an ethereal realm and its ties to the world you left behind, uncover its mysteries, and ultimately find your way home.

OPUS: The Day We Found Earth

(21/04/2016)

• Singleplayer
• Puzzle
• Indie

Dive into the boundless galaxy and embark on an emotional adventure! Help little robot Emeth to fulfill a century-old promise by finding Earth in order to save Mankind—so step into the spaceship, operate a deep space telescope, and find out what’s out there in the unknown.

OR

(07/02/2017)

• Casual
• Indie

Do not underestimate the apparent simplicity of OR because it will amaze you. In the game there will be pitfalls of every kind! The 3D graphics allows you to see the light from above. This opens up a world of possible combinations. With gameplay based around light, OR is a simplified Puzzle/Arcade game.

合成大西瓜 | Big watermelon

(06/04/2021)

• Board-Game

Big watermelon features: 1. Combine the same fruit until it becomes a watermelon, and you can continue to do so. 2. Are you ready? Everyone likes a small game that can quickly complete the task by moving your fingers.

扔彩虹模擬器 | Coin Toss Rainbow Simulator

(31/10/2023)

Coin Toss Rainbow Simulator. Made in Hong Kong. Toss the coin and test your luck. By Unreal Engine 5.3.1.

死亡边缘 | Edge of Death

(28/02/2024)

• RPG
• Simulation
• Shooter
• FPS

Edge Of DeathIt is a first-person horror survival adventure game. Players will experience various illusions between life and death with the protagonist, and experience a journey to the edge of death.

景行 | Encourage

(18/12/2018)

• Casual
• Indie

The topic that youth can never escape is graduation. Graduation is parting, graduation is the ultimate destination of youth. Everyone's life node has been separated by graduation. The young people with high spirits and innocent girls have gone through the best years of youth. Our heroes and heroines are also facing graduation today.

エスカレーター | Escalator

(05/01/2024)

• Adventure
• Indie

Escalator is a horror game in which you must find something unusual while riding an escalator and try to escape from an enclosed space.

恶魔迷宫 | Evil Maze

(16/06/2016)

• Singleplayer
• Strategy
• RPG
• Simulation
• Shooter
• Action-Rpg

Random Iiem and Skills + Hidden elements RPG + Strategy ARPG The game starts in a dark underground maze where a female officer is confined in a prison. She wants to get out of this nightmare maze! Would you like to help her?

水果祖玛 | Fruit Zumba

(13/06/2021)

• Casual
• Strategy
• Puzzle
• Shooter

Classic Zuma, reset back! One of the most classic and joyful games, we have launched a new content: a new game map, gorgeous animation effects, well-designed levels.

|][-@I7 in vitro #デッド・インヴィトロ

(12/06/2023)

• Action
• Casual
• Singleplayer
• Shooter

"|][-@I7 in vitro #Dead in vitro" is a vertical scrolling bullet hell shooter developed by Cupro Laboratory. Control "Ferrum" a boy who was newly born as a zombie in a certain laboratory, and confront powerful enemies.

変獄 | limbus

(25/03/2025)

• Adventure
• FPS

You continue to wander through an endless looping corridor beside the abyss. Is there a way out... Is there salvation...? You walk on without understanding anything. All you can do is choose the right path. Will there ever be an end to this nightmarish journey.

迷路会社 | Maze Company

(11/12/2024)

• Action
• Action-Adventure
• Indie

A short horror walking simulator where you just head from the workroom to the exit. Something may happen along the way, but don't worry, just keep going.Your goal is to return.

徹夜報告書 | Midnight Report

(22/12/2023)

• Action
• Adventure
• Action-Rpg

Midnight Report. It is the tragic experience of a student who is pressed for time to complete a report assignment. It is a Japanese rogue-lite 3D survival horror game with the theme of hallucinations caused by working all night.

ニコニコさん | Niconico-san

(23/04/2025)

• Action
• Adventure
• Indie
• Simulation

"Niconico-san" is a first-person, fast-paced horror game set in a Japanese residential area. Players must escape from the smiling man of urban legend, "Niconico-san," and find their way out of a terrifying otherworld.

彼得猪冒险 | Piggy Prter Adventure | ABENTEUER von Peter, dem Schweinchen

(03/06/2019)

• RPG
• Simulation
• Sports
• Indie
• Remote-Play

It’s a relaxing and casual adventure game where you have to operate the piggy to play this fun game of heading balls and win the final victory. At the same time, two-player level enables you to get more fun. It must be the game of choice for a two-person competition at friends’ party!

迷宮校舎 | School Labyrinth

(20/02/2024)

• Action
• Singleplayer
• Multi-player
• Co-op
• Indie

School labyrinth is a 1~4 co-op horror game set in a randomly generated school at night. Cooperate with your friends and try to escape from the school building!

星礼研究所 | Sighchology Research Lab

(30/12/2019)

• Casual
• Strategy
• RPG
• Simulation
• Indie

In this game, you play as a student in the Sighchology Research Lab. In this dark place, you do research every night and day without sleep, because you have been given a great mission: to publish a piece of paper...

夏荷 | Summer Lotus

(27/03/2019)

• Adventure
• Casual
• RPG
• Simulation
• Indie

Summer Lotus, a derivative play of campus love With the arrival of summer vacation, the male protagonist applied for a summer job, and naturally met our beautiful girls by the sea. Then an interesting love story happened.

幸存者 星星之火 | Survivor Spark

(13/05/2020)

• Action
• Adventure
• Casual
• Strategy
• RPG
• Simulation
• Shooter
• Indie
• Racing

Survivor: Spark is the first episode of a series of anti alien invasion games. It's a classic transcendental third person shooting game!

终极功德模拟器 | Zen Simulator

(26/04/2023)

• Casual
• Simulation

Unwind with this meditation game, guided by the calming sound of the wooden fish. Clear your mind, relieve stress, boost focus, and improve sleep—all in just a few minutes of peaceful gameplay.

Oracle

(27/02/2017)

• Adventure
• Casual
• Open-World
• Indie

ORACLE is a single player, open world experience with dozens of locations to explore, great soundtrack and an awesome story ready to be unraveled.

Oracle of Forgotten Testament

(01/03/2018)

• Singleplayer
• Action-Adventure
• Puzzle
• RPG
• Simulation

Oracle of Forgotten Testament is an episodic turn-based RPG Touhou fangame where you play to explore Gensokyo and resolve incidents happening after Marisa found a peculiar book inside Scarlet Devil Mansion's library.

Oracle of Meles

(20/01/2025)

• Action
• Adventure
• Action-Adventure

An ancient prophecy, a chosen one? Shoot your way through an evil castle, collect powerful artifacts, and defeat the evil king. Explore this 2D hand-drawn world full of magic and monsters where nothing is as it seems.