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Displaying 1350 - 1400 games out of 2501 games
NULL Train
8o8 Game Studio
📅 Coming soon
Battle through an endless, ever-changing sci-fi train in this gritty 2D roguelike. Each car is a new challengefight enemies, solve puzzles, and defy gravity. Die and start over, unlocking new gear and skills to push further every time. Welcome aboard NULL Train.
nullptr
Jeferson Silva
📅 2024
A real-time tactical hacking puzzle where every move reshapes the challenge. Infiltrate megacorp servers, reroute connections, gather valuable data, and outsmart evolving defensesall while racing against the clock and the ever-present threat of adaptive sentinels.
O.U.T.T.
Ilex Games
📅 Coming soon
O.U.T.T. is a Turn-Based Puzzle Adventure set in So Paulo, 22nd century. In a Soul Punk story, as Flavia, an ingenious psy-scientist, you must use your wits to unveil the source of those evil doings on this deep narrative, puzzle game.
Oasis Mission: Sci-Fi Economic Colony Sim
Lunar pug studio
📅 27 Mar, 2024
A Sci-Fi colony and strategy sim with a complex economy, immersive logistics, and a war against the rise of the machines! Build your colony and ensure supplies for your people. Automate industrial ships and create combat groups to defend against waves of enemies.
Objects in Space
Flat Earth Games
📅 1 Mar, 2019
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
Obliterator-X
Webbysoft
📅 2025
A chaotic tower defense roguelike where scavenging is survival and death is just the beginning. Build, blast, and upgrade your way through mutant hordes, unlock new weapons, and assign combat drones to adapt your strategy every run.
Obscurant
King Brick Games
📅 29 Apr, 2022
A narrative-focused mimicry game. Observe and blend in to survive. Disguise yourself, deceive enemies, and discover the secrets of a mysterious world.
Occult Crime Police
Eggcorn Games
📅 12 Oct, 2021
The Truth Is Pretty Out There. Only you can decipher the mystery of Boomtown USA. Comb a mysterious government base for evidence, investigate the set of a ghost hunt, and unravel the truth, no matter how ridiculous it may be!
Ocean Planet
Adam314
📅 November 2024
Jump and Climb your way to the top in this ocean-themed, atmospheric and challenging rage platformer!
Octopus Game
Zoryth Games
📅 21 Jun, 2022
A multiplayer game for up to 50 players to decide who will be the # 1.
Oddworld: New 'n' Tasty
Just Add Water (Developments), Ltd.
📅 Feb 25, 2015
Built from scratch, enjoy breathtaking visuals, enhanced audio and improved, deeper gameplay as New 'n' Tasty reignites the original Oddworld: Abe's Oddysee using the latest next-generation technology.
Odysseus Kosmos and his Robot Quest: Adventure Game
Pavel Kostin
📅 1 Dec, 2017
What do you do if you are the only one left aboard a spaceship? Your team has embarked on a mysterious expedition a few years ago, the ships machinery has started acting up and it seems there are ghosts wandering about. Luckily, the black hole above you doesnt pose any problemsyet.
Odysseus Kosmos and his Robot Quest: Episode 1
Pavel Kostin
📅 12 Jan, 2018
What do you do if you are the only one left aboard a spaceship? Your team has embarked on a mysterious expedition a few years ago, the ships machinery has started acting up and it seems there are ghosts wandering about. Luckily, the black hole above you doesnt pose any problemsyet.
Off Grid
Semaeopus
📅 Early 2019
Scan, hack, engineer, win: manipulate the people and the world around you. OFF GRID is a stealth-hacking action-adventure where collecting data on characters is as important as avoiding their sightlines. Get to grips with the tech, and hack all the things. Data is your most powerful weapon.
Off to Sleep
Luca Chioni
📅 3 Nov, 2022
A turn-based RPG that guides you through an adventure to discover reality and its mechanisms.
Offworld Trading Company
Mohawk Games
📅 28 Apr, 2016
Mars has been colonized, and Earth's corporate titans fight to dominate this new market. Competition is fierce in this fast-paced economic RTS from Civilization IV Lead Designer, Soren Johnson.
Oh No! UFO!
Blunderjack
📅 To be announced
Join Cosmo and P.E.A. as they write the first intergalactic planetary guidebook about the Earth. Explore the planet, meet interesting life forms, lend a tentacle when you find trouble, and get up to a lot of shenanigans along the way.
Oh! Robot: Legendary Mechanic
Garage Arts
📅 Coming soon
A top-down shooting game where you board a robot and fight against runaway robots. We invite you to the shooting chaos! Robot boarding complete! Let's go!
Oh, Flock!
HawkesByte
📅 To be announced
After a strange series of events you find yourself shoved into the role of a Shephard on a very peculiar farm! With only your wits and trusty cursor by your side guide your flock of sheep through a series of environments filled with a variety of obstacles and predators!
Oirbo
ImaginationOverflow
📅 TBA
As Oirbo you will explore a labyrinthian spacecraft and discover its mysteries and purpose. Navigate a huge Metroidvania-inspired, hand-drawn, 2D action platformer full of secrets to uncover, areas to explore, and enemies to dismantle.
Old Skies
Wadjet Eye Games
📅 Coming soon
A time travel adventure spanning two hundred years! Dive into the past with time agent Fia Quinn as she embarks on seven trips through time. History is up for grabs, from the speakeasies of Prohibition to the vicious gangs of the Gilded Age to the World Trade Center on September 10, 2001.
OLINE WORLD OF LEO
Lil knee games
📅 8 Sep, 2024
Computer Dungeon Roguelike strategy where an awakened AI evolves in a computer world. Explore hardware/system dungeons, combine tech-tree talents for unique effects. Ultimate goal: Upload to an independent device for survival.
Omega Tower
Ultra Rogue Studio
📅 17 Sep, 2023
Omega Tower is a small tower defense game mixed with rogue-lite elements!Pick a loadout with unique abilities, Upgrades for your towers, and create unique synergies.But most importantly, try to defend your core !
Omega Warp
Cian Games
📅 2023
Omega Warp is a sci-fi themed action-adventure, which takes place aboard an interstellar freighter. Explore, upgrade your skills and equipment, and uncover the mysteries surrounding the freighter's loss of communication with the base of operations on Earth.
Omnigon
Yokcos
📅 8 Nov, 2023
A humourous little adventure where you have the power to shapeshift other objects and wear a great big stack of hats
On Rusty Trails
Black Pants Studio
📅 Jun 13, 2016
Conformity is everything in this lightning-fast platformer - get ready to shift your friendships each and every second!
On Your Hands
SkullCrusher
📅 15 Apr, 2022
On Your Hands is a game which seeks to merge complex puzzle mechanics with a creepy atmosphere and terrifying enemies. Can you use the seven unique magic types to make your way off a strange alien planet?
One Deck Galaxy
Handelabra Games Inc.
📅 27 Jul, 2023
Roll your dice and cleverly use them to build up your civilization from its humble homeworld, growing to create a Federation spanning countless star systems.
One Lonely Outpost
Aurorian Studios
📅 Early 2022 - Wishlist Now!
An alien world sometimes needs a farmers touch to bring it to life. In this sci-fi, colonization-life sim, terraform a barren world: turn wastelands into verdant landscapes while exploring, farming, building, and unlocking all the mysteries of this strange new planet.
ONEiRA
Dream Matter Labs
📅 To be announced
ONEiRA is a narrative-driven puzzle-platformer where your choices matter. Explore a world where dreams are sold as entertainment and your job is to ensure each is market-ready. Inspect virtual dreamscapes and untangle the trauma hidden within.
Oneons
Deen Games
📅 2020
Oneons is a hard coffee-break roguelite. Explore 12 floors. Uncover dangerous enemies, each with unique abilities. Turn-based combat: fight or use your skills to blast enemies or heal. Balance exploration, energy, and combat. Die. Get stronger. Retry. Turn-based and easy to play, difficult to master
Oniken
JoyMasher
📅 Feb 5, 2014
When a global war nearly decimated humankind, an evil military organization called Oniken takes advantage of the situation to dominate and oppress the few remaining survivors. Even though any resistance to this organization seemed hopeless, a small rebel movement organizes strikes against Oniken.
Operation S.T.E.E.L.
Undermog Games
📅 Late 2021
Operation STEEL is a roguelike shoot-em-up rendered in hand-drawn art. Blow up loads of enemies, destroy huge bosses, find weapons, and upgrade your load-out between levels. Combat the electronic legion across 20+ procedurally generated levels!
Opollo
Planetary Gears
📅 Coming soon
Little Minimalist Arcade High Score Chaser with 200+ Vehicle combinations.
Opus Cortex: A Nonogram Puzzle Story
Rainier Interactive
📅 To be announced
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?
Orbital Gear
Night Node
📅 Aug 7, 2014
Orbital Gear is a fast paced sidescroller shooter where you utilize the gravitation of celestial objects to give you momentum through space. Arm your Mech with two of the twelve different weapons and destroy your enemies.
orbt xl
Nickervision Studios
📅 Coming Soon
Defy gravity in Orbt XL! A fast-paced, addictive, 'just-one-more-round' arcade score chaser. Stay in orbit, dodge obstacles, and rack up points, the closer you are to the black hole, the higher your score! Easy to learn, tough to master, and perfect for quick play sessions while waiting in queue.
Orion Trail
Schell Games
📅 Oct 12, 2015
Dare to travel the absurd and dangerous Orion Trail, where only the luckiest, bravest, and most stubborn captains will make it all the way to the end. Become famously incredible or incredibly dead in this single player choose-your-own-space-adventure!
Orion's End
Southfog Games
📅 Coming soon
Orions End is space trading life sim. Trading, smuggling, pirate hunting, or pirating. Be a hero or a rogue. But also be a friend - there are residents on each planet who need someone like you to talk to, help them with quests, or to just gift them with loot from your adventures.
Orion: A Sci-Fi Visual Novel
Cylight Studios
📅 Sep 28, 2015
A science-fiction visual novel centered on the implications of time travel, artificial intelligence, and humanity's ascent to the stars.
Oroboro
Grzegorz Gajewski
📅 Coming soon
Explore an open world and fight foes for loot and resources in a 2D side-scroller action RPG. Then return and share with your friendly NPCs, manage relationships, gossip, progress skills, and rebuild the destroyed town.
OS:Path
GooDCrafter
📅 19 Apr, 2018
Small but tricky indie game to spend your evening on playing. You'll have to determine the cause of a program's critical error and restore its modules by playing mini games and solving puzzles while using the console.
Osmos
Hemisphere Games
📅 Aug 18, 2009
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you.
Our Personal Space
Metasepia Games
📅 9 Aug, 2021
A visual novel where your choices determine the future of your relationship and the success of your colony. Choose how to treat your husband and how to spend your free time in this frontier sci-fi story.
Out of Sight
Mainframe Games
📅 Yes
Out of Sight is a high-energy take on retro stealth games. Strategize and outsmart an alien cult on your space station using advanced gadgets. Hone your stealth skills to outmaneuver enemies as you solve puzzles solo or in co-op. Rescue your crewmates and secure your escape!
Out of Space
Behold Studios
📅 2019
Strategy co-op online multiplayer game about living on a spaceship with your roommates. You'll need to generate resources, take care of a deadly alien infestation, upgrade your appliances and build your sustainable space home. Living together is never easy, especially when you are in outer space!
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