Oozi: Earth Adventure

(04/12/2013)

• Action
• Adventure
• Casual
• Singleplayer
• Action-Adventure
• Arcade
• Platformer
• Indie

Oozi: Earth Adventure is a classic 2D platformer with old school gameplay - no puzzles, no punishment, just 100% pure classic platforming fun! Its most prominent features are HD visuals and beautiful hand-drawn art, but despite its visual style, it’s a good fit for all kinds of gamers!

Oozing Islands

(21/08/2021)

• Strategy

Enjoy freedom of movement in full 3D with no fixed paths in this tower defense and RTS hybrid. Your units are your towers and you can build fences anywhere. Set your units' behavior to create a perfect team of defenders. Two leader boards let you play forever!

Opa Definitive Edition

(26/04/2021)

• Casual
• Arcade
• Indie

Opa Definitive Edition is a 2D drawn obstacle-based game. You will guide a happy square through increasingly more difficult levels, enemies, and bosses with unique environment in their levels.

Opalescence

(04/08/2022)

• Arcade
• Shooter

The colorful top-down shooter/bullet-hell

Opaline

(04/05/2017)

• Casual
• RPG
• Simulation

In this 16-bit style RPG, Gallow and Liza are two teenagers gifted with great powers, and that destiny seems to persist in keeping away from each other, however their feelings drive them close. Can the two of them have what it takes to preserve the world from the rise of the Blight?

Opaloid Kingdom

(08/05/2023)

• Action
• Arcade
• Indie

Take control of a sorcerer sent on a mission to rescue the princess and play through fast, old-school arcade challenges in a medieval fantasy land! Explore dark dungeons filled with monsters, travel through new towns and meet crazy wizards while fighting through obstacles that will test your skill.

Ope

(28/11/2019)

• Adventure
• Action-Adventure
• Platformer

Ôpe is a 3D platforming game in which you play as a little hero named Bô. His quest will lead him through enchanted forest and temples where he’ll need to deliver shamans from corruption before the sun sets forever.

OPEC IDLE

(05/10/2020)

• Casual
• Strategy
• Indie

Become an oil magnate in a few days! Without investing real money, you'll get real pleasure from the profits! From pipette of oil to sales of trains to the Kingdom of Esvatini!

Open At Nine

(11/04/2023)

“Massive debt, a shabby brothel, and a naughty succubus… This is all I get for defeating the Demon God?!” Hire monster girls to attract customers and pay off your debts! Don't forget to give your girls lots of hands-on job training!

Open Blocks

(27/08/2024)

Blocks lets you easily create 3D objects in virtual reality, no matter your modelling experience. Using six simple tools, you can bring your applications to life, create a volumetric masterpiece, or simply let your imagination run wild.

Open Brush

(07/06/2021)

• Casual
• VR

Art from all angles 🖌️🎨 3D paint in XR! The community powered evolution of Tilt Brush

Open Colour

(31/10/2019)

Use the Color Room to change the mood of your room. Use the Decorations Room to widen your real space into the virtual world. Use the Dice Room to take a chance on Abstract Artwork, or something you might recognize...Also, I spent a lot of time on the full description...

Open Country

(09/06/2021)

• Adventure
• Action-Adventure
• Multi-player
• Open-World
• Survival
• Co-op

Ok Scout, it's time to show us what you’re made of-break free from your city life and live like a real outdoorsman. The wilderness isn’t for the faint of heart, but if you work hard, learn how to use the environment and be one with nature, you too can become a Master Outdoorsman.

Open Course

(19/10/2022)

• Casual
• Multi-player
• PvP
• Sports
• E-Sports
• Indie

Fun Exciting Island Golf! Test your ability on this challenging island golf course, where precision is needed for every shot!!!

Open Fishing 2

(05/03/2025)

• Casual
• Multi-player
• Open-World
• Survival
• Co-op
• Sandbox

Open Fishing 2 is a chill open world fishing game. Fill out a book with 115 fish species, meet friendly fish gods, sail the oceans with your boat, cook, draw your own map, and enjoy fishing without worries.

Open Fishing XL

(21/07/2023)

• Casual
• Singleplayer
• Early-Access
• Open-World
• Survival
• Sandbox
• Sports

Open Fishing XL is an open world fishing game focused on creating a relaxing experience. Fill out a book with 115 fish species, buy rods, items, boats and more, explore the large map, identify cute insects, draw your own map, and enjoy fishing without worries with intuitive fishing mechanics.

Open Hexagon

(01/11/2021)

• Action
• Casual
• Arcade

Four buttons, one goal: survive. Are you ready for a real challenge? -- Become the best and climb the leaderboards in Open Hexagon, a fast-paced adrenalinic arcade game that's easy to learn but hard to master!

Open Hunting XL

(19/11/2024)

• Adventure
• Shooter
• Survival
• FPS
• Sports

Open Hunting XL is a hunting simulator with an emphasis on player freedom. Quickly spot animals using your drone or sneak and spot with binoculars depending on the difficulty you select. Hunt in several locations and level up to unlock mechanics seen in no other hunting game.

Open Mod 2024.2

(25/06/2023)

• Early-Access
• Multi-player
• PvP
• FPS

Open Mod is an entirely free to play, niche, tactical, extreme hardcore first person shooter with immersive aspects that may not have been seen before.

Open Ocean

(09/06/2019)

• Indie

Discover what it's like to live the life of a shark in today's open ocean. A small game with a powerful message.

Open Roads

(27/03/2024)

• Adventure
• Singleplayer
• Indie

Long-lost family secrets. Hints of a hidden fortune. And miles to go before they sleep. Tess Devine’s relationship with her mom has never been easy, but they’re about to set out together on a journey into the past that they’ll never forget.

Open Sorcery

(21/02/2017)

• Adventure
• Singleplayer
• RPG
• Simulation
• Indie

BEL/S is an Elemental Firewall: a fire elemental bound with C++ code to protect a network of people and places. She can learn things, develop relationships, and even gain sapience. Or she can burn everything with fire. It's up to you.

Open Space 2D

(05/07/2018)

• Casual
• RPG
• Indie

Welcome to Open Space, the RPG where you fly planet to planet fighting space pirates and building up your ship to fight the Pirate Mothership.

Open Spaces SE

(03/05/2023)

• Adventure

Skylar is an student with anxiety. Walter is a farmer with social anxiety and PTSD. Jessica is a programmer with anxiety and agoraphobia. Li Wei is an technologist with intense anxiety. Navigate their stories, learn how they move through the world, and about methods of treatment and recovery.

Open The Door

(29/11/2018)

• Casual
• Puzzle
• Indie

Physics. Simulation. Puzzle. 3D. Indie.

Open The Doors

(10/05/2024)

• Action
• Puzzle
• Indie

Find the code, Solve the puzzle, open the door.

Open The Gates!

(16/10/2022)

• Singleplayer
• Strategy
• Building

Build, manage and defend your medieval castle in this crazy sidescroller RTS game. Build walls, towers and traps to protect your fortress from enemy sieges before launching your own. Command powerful siege weapons and design the perfect strategy to take back the empire.

Open Wheel Manager

(19/09/2019)

• Casual
• Singleplayer
• Strategy
• Early-Access
• Sports
• Indie
• Racing

Open Wheel Manager - is a management sim for open wheel racing fans.

Open World Game: the Open World Game

(18/11/2019)

• Adventure
• RPG
• Simulation
• Open-World
• Indie

Open World Game: the Open World Game is the purest open world game experience. Enjoy simplified mechanics, minimal graphics, and an extremely short main story; all so you can get to work removing every icon from the map with the least resistance.

OpenCAGE

(22/01/2025)

OpenCAGE is a community-created modding toolkit for Alien: Isolation which gives access to scripting, assets, configurations, and behaviour trees.

openCanvas 6

(16/09/2014)

openCanvas is a painting software dedicated to Windows Operating System, that is suitable to beginners to advanced users. Equipped with analog-like brush strokes and functional yet user-friendly interface, openCanvas has the higher basic performance and the unique "Event" function that enables to record and replay the drawing...

openCanvas 7

(19/09/2017)

openCanvas is a painting software dedicated to Windows Operating System, that is suitable to beginners to advanced users. Equipped with analog-like brush strokes and functional yet user-friendly interface, openCanvas has the higher basic performance and the unique "Event" function that enables to record and replay the drawing...

OpenDraft

(06/01/2025)

OpenDraft is a minimalistic & offline writing, note-taking, and doodling tool with infinite space and distraction-free focus.

OpenFlower

(26/06/2023)

A visual novel about a small Japanese family. Just moved to a big city full of surprises and adult adventures. The game develops around the Hot Wife fetish. The game is made in 1920*1080 format. The original language is English, Spanish and Hindi are available. Game v. 1.17 and fully completed.

OpenGloves

(20/05/2021)

OpenGloves is an open source, OpenVR Driver that allows for use of DIY Virtual Reality Hardware in SteamVR games.

Opening Night at the Großen Schauspielhaus - Berlin 1927

(03/05/2021)

• Casual
• VR

Visit Berlin 1927 and explore the VR-reconstruction of the famous theatre. Three storytellers, Walter, Fritzi and Otto, invite you to share their anticipation of the opening night – behind the scenes and on stage. Our digital theatre opens new perspectives; cultural heritage comes alive virtually.

Opening Up

(03/06/2020)

• Adventure

A short story about explaining the unexplainable.

OpenTTD

(31/03/2021)

• Singleplayer
• Multi-player
• Building
• Co-op
• Sandbox

OpenTTD is a business simulation game in which players earn money by transporting passengers and cargo via road, rail, water, and air. It is an open-source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe.

OpenVR Benchmark

(19/12/2019)

Benchmark your VR setup - OpenVR Benchmark is the first benchmark tool for reproducibly testing your real VR performance, rendering inside of your VR headset. See if your hardware performs correctly! VR headset required.

Operação Prato

(19/06/2025)

• Action
• Adventure
• Casual
• Action-Adventure
• Early-Access
• FPS

'Operação Prato' is a game based on one of Brazil's greatest ufological mysteries. Step into the shoes of Mario, the reporter who will risk his own life to expose the entire truth about the events that terrified the residents of the Colares region.

Operation Abyss: New Tokyo Legacy

(26/03/2017)

• RPG
• Simulation

When reports of kidnappings and strange incidents begin to break out across Tokyo, Hinowa Academy's very own Xth Squad is dispatched to investigate and neutralize the imminent danger. Loyalties will be questioned and secrets will be exposed as they desperately search for the truth!

Operation Airsoft Beta

(29/07/2021)

• Action
• Casual
• Strategy
• Multi-player
• PvP
• Shooter
• FPS
• Sports
• E-Sports

Operation Airsoft is an online first-person shooter based on the popular sport of airsoft. Choose from a library of real-life field layouts, including SpeedQB, Speedsoft, and Milsim game styles. (Currently Outdated)

Operation Armstrong

(17/05/2021)

• Strategy
• Multi-player
• PvP
• Co-op
• Remote-Play

Your infiltration team must stop an army of lunar-bots from crashing the moon into our Earth! The field operative, wielding the VR headset, must sneak through each enemy outpost while their team of hackers will assist using their smartphones! Strap in for some Asymmetric-VR-Stealth-Party gameplay!

Operation Athena

(02/12/2024)

• Action
• Singleplayer
• Early-Access
• Multi-player
• Shooter
• FPS

Operation Athena is a tactical first person shooter that takes inspiration from classic tactical shooters with updated modern mechanics. Take part as an operator of Athena Team solo or with up to 4 players against a global terrorist threat.

Operation Babel: New Tokyo Legacy

(15/05/2017)

• RPG
• Simulation

When a mysterious object—dubbed ‘the Embryo’—appears in the sky, the CPA and the Xth Squad are mobilized to face the new threat. Customize your characters with the innovative 'Sub-Blood' system, form your perfect team, and venture into deadly labyrinths to challenge the invaders!

Operation Blackfox

(12/11/2024)

• Adventure

Operation Blackfox is an interactive graphic novel. At various points in the story, you will be asked to make a choice, these choices will take you down different paths in the story. Your objective is to rescue as many characters as possible. The game features 3 possible story endings.

Operation Breakout

(27/10/2016)

• Action
• Adventure
• FPS
• Massive-Multiplayer
• Remote-Play

A fantastic FPS to play together with your friends or alone.Go into the savage world of Operation Breakout and get yourself to the top!A great game without Pay2Win!

Operation: Cheek Clapper

(19/09/2019)

• Action
• Indie

Storm the base and clap alien cheeks in this fast-paced action game. Instant, quick, no fuss, alien fun!

Operation Covid-19

(11/06/2020)

• Arcade

An endless first person shooter in which you CAN destroy viruses with TP rolls. Earn points, level up, get upgrades and shoot the new normal in the face.

Operation Crustacean

(01/01/2025)

• Action
• Adventure
• Action-Adventure

Ride a large shrimp to explore a perilous island in this surreal hardcore 3D platformer. With permadeath, rare powerups, and challenging bosses, you will have to master the unique physics-based controls and embrace the dark humour to overcome the impossible.