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Browse games starting with O

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O Ogro

MSX 1988
O Ogro, released in 1988, is a classic MSX game that has stood the test of time and continues to captivate gamers even today. Developed by Compile, a Japanese video game company known for its innovative and fun titles, O Ogro is a side-scrolling action game that follows the story of a brave knight on a quest to defeat a ferocious ogre and save his kingdom. The game’s graphics, while not groundbreaking for its time, are still charming and vibrant, with detailed sprites and beautifully designed backgrounds. The sound design is equally impressive, with a catchy and memorable soundtrack that sets the tone for the game’s medieval fantasy setting. Players will also appreciate the fluid and responsive controls, making the gameplay smooth and enjoyable. One of the standout features of O Ogro is its challenging gameplay. As the knight, players must traverse through various levels filled with obstacles and enemies, using their sword and shield to defend against attacks. The ogre, who appears at the end of each level, is a formidable opponent, with his size and strength making him quite difficult to defeat. Players must utilize their wits and skill to defeat the ogre, making each encounter an epic and thrilling battle. But it’s not all about combat in O Ogro. The game also incorporates puzzle-solving elements, with various puzzles scattered throughout the levels. These puzzles range from simple block-pushing challenges to more complex riddles that require players to think outside the box. This adds an extra layer of depth to the gameplay and breaks up the action sequences nicely, preventing the game from becoming monotonous. For those who enjoy a bit of nostalgia, O Ogro also offers a multiplayer mode that allows two players to team up and take on the ogre together. This mode adds a new dimension to the game, making it a great option for some friendly competition among friends. The multiplayer mode also adds to the game’s replay value, as players can always go back and try to beat their previous high scores. Last but not least, O Ogro has a charming story that unfolds as players progress through the game. While not the most complex or groundbreaking story, it adds a sense of purpose to the gameplay and gives players a reason to keep playing until the end. With multiple endings depending on the player’s performance, the story also adds to the game’s replayability, encouraging players to go back and try to achieve a better ending.

O'Riley's Mine

In the role of an Irish prospector named Timothy O'Riley, dig an endless series of mines in search of coal, gold, diamonds, rubies and oil. But beware of the evil creatures you've disturbed and the subway river that grows: don't let any of them touch you or you'll die! The river is unstoppable, but you can kill or block the creatures with a limited amount of dynamite. O'Riley's Mine is essentially a high-speed variant of Mr. Do! and Boulder Dash: you must run around collecting everything before getting back to the top of the mine shaft as the creatures chase you and the water rises relentlessly.

O-DEN2000

Windows 2000
O-DEN2000 is a distinctive title that emerged in the gaming landscape in the year 2000. Developed for the Windows platform, this game quickly garnered attention due to its unique premise and captivating gameplay mechanics. Set against a vibrant backdrop inspired by both retro and contemporary aesthetics, O-DEN2000 invites players into an imaginative world where strategy and skill intertwine. This blend of colorful graphics and engaging soundscapes provides an immersive experience that resonates with many within the gaming community. At the heart of O-DEN2000 lies its innovative puzzle-solving elements. Players are tasked with navigating through intricate levels filled with various challenges that demand wit and dexterity. Each stage escalates in complexity, requiring thoughtful planning and swift reflexes to overcome obstacles. The game encourages exploration, appealing to both casual gamers looking for a relaxing pastime and hardcore enthusiasts interested in mastering its environments. The diversity of puzzles not only maintains excitement but also ensures that players remain firmly engaged as they progress through the intricacies of the game. Moreover, O-DEN2000 is notable for its exceptional character design, which features a colorful cast that enriches the overall storyline. Each character comes equipped with unique abilities, allowing players to adopt different strategies depending on their chosen avatar. This dynamic approach to gameplay leads to a higher replay value, as players can experiment with various techniques and combinations. The characterization is further enhanced by a lighthearted narrative that merges humor with occasional depth, creating memorable moments that players often reminisce about long after their gaming sessions have concluded. The soundtrack of O-DEN2000 deserves special mention as well. The audio complements the visual elements, crafting an atmosphere that envelops gamers as they delve into this whimsical realm. Each musical piece is tailored to elevate the experience, adding an extra layer of enjoyment as players tackle challenges and explore the intricacies of the game. This attention to auditory detail is indicative of the developers' commitment to creating a well-rounded experience that caters to all senses. As the early 2000s paved the way for countless innovations in the gaming industry, O-DEN2000 stands as a colorful testament to that era. Its dedication to creativity, combined with a blend of strategic thinking and engaging narratives, has made a lasting impact on those who took the plunge into its vibrant world. Even years after its release, the game continues to evoke nostalgia, reminding players of the charm and simplicity that characterized gaming at the turn of the millennium.

O-Pong

DOS 1996
1996, the year O-Pong was released in DOS. Made by Stophylevie and published by Stophylevie, this simulation game is available for free on this page.

O.D.T.: Escape... or Die Trying

Windows 1998
O.D.T.: Escape... or Die Trying, released in 1998, is a classic adventure game for Windows that was developed by the French game developer Kalisto Entertainment. The game follows the story of two characters, a human and a robot, who are stranded on a hostile, far-flung planet. The two must work together to escape from the planet and make their way back home. The game's main objective is to solve puzzles and overcome obstacles in order to progress through the game. It features a unique combination of puzzle-solving and action-adventure elements, which require the player to think strategically and use their wits to progress. As the player progresses, they will have to make their way through multiple levels of challenging puzzles and enemies in order to reach the end. The game features a unique art style, with a 2D pre-rendered viewpoint that gives it a distinct look and feel. The game also features a unique soundtrack composed by the French electronic musician, Jean-Marie Marlet. The soundtrack is comprised of ambient, electronic, and orchestral tracks that help to create an immersive atmosphere. O.D.T.: Escape... or Die Trying is a classic adventure game that has stood the test of time. It's a great example of the classic adventure game genre, combining puzzles and action to create an engaging and challenging experience. Its unique art style and soundtrack add to the atmosphere of the game, creating a unique and memorable experience that is sure to stay with you for years to come.

O.R.B.: Off-World Resource Base

Windows 2002
Long ago, a great empire spanned the stars until it collapsed. The worlds of this empire fell into an intergalactic dark age and forgot their past. In the Aldus solar system, space flight has been regained. Two different races, the Malus and the Alyssians, venture into space for the first time and meet. Due to the fragmented legends of both races, they soon distrust each other and declare war. However, the Alyssians and Malus are weak in resources, having been confined to their planets for so long, so it is important for both sides to establish Alien Resource Bases. O.R.B. is a 3D real-time strategy game, similar to Homeworld. The player must build bases and oversee the collection of resources in space. These resources can be used to build new ships and space vehicles, as well as to research additional abilities. Asteroids and planets can provide a strategic advantage in positioning forces. The player can assign movement and combat orders to individual or group units.

Ōban Star-Racers: The Arouas Cycle

J2ME 2007
Ōban Star-Racers: The Arouas Cycle is an exhilarating game developed for J2ME that debuted in 2007. This title emerged from the popular animated series Ōban Star-Racers, which captures the hearts of audiences with its thrilling narrative and vibrant racing landscapes. Within this mobile game, players find themselves immersed in a blend of fast-paced racing action paired with captivating storytelling, designed to engage fans of the series and newcomers alike. In Ōban Star-Racers, players assume the role of the young protagonist, Molly, who is determined to compete in the intergalactic racing competition known as the Ōban Cup. The game showcases a variety of imaginative circuits set in different alien landscapes, each brimming with unique challenges and obstacles. Players harness a range of high-tech hovercrafts and engage in nail-biting races against formidable opponents, utilizing specialized techniques to gain an advantage. As players advance, they can unlock upgrades for their vehicles, enhancing performance and enabling them to tackle increasingly difficult tracks. The gameplay is characterized by its intuitive controls, fostering an engaging experience that encourages players to master drift mechanics and timing for optimal maneuverability. Whether zipping through neon-lit corridors of futuristic cities or navigating treacherous terrain on distant planets, each race is imbued with a sense of urgency and thrill. The allure of dynamic graphics and smooth animations contributes significantly to the overall experience, enveloping players in the immersive world of Ōban Star-Racers. One of the standout features of The Arouas Cycle is its captivating storyline that weaves through the racing events. The narrative forms a backdrop for gameplay, with interactive dialogues and mission objectives that draw players deeper into the overarching plot. This integration of story with race mechanics enhances the emotional connection players feel with the characters and the universe, providing a sense of purpose beyond merely achieving first place. Ōban Star-Racers: The Arouas Cycle not only appeals to fans of the animated series, but it also stands on its own as a solid racing game within the J2ME platform. The combination of engaging mechanics, a rich narrative, and visually stimulating environments coalesces to create an enjoyable gaming experience. For those seeking a rapid yet rewarding mobile game, The Arouas Cycle remains a noteworthy gem that encapsulates the essence of thrilling intergalactic racing. As technology continues to evolve, this title serves as a nostalgic reminder of the creativity and innovation present in mobile gaming during its heyday.

Obelix

Obelix, launched for the Atari 2600 in 1983, stands out as a daring attempt to transport comic book heroes onto early home consoles. Based on the famed French comic series Asterix, the title gave players an interactive taste of the indomitable village duo’s adventures, specifically focusing on Asterix’s brawny companion, Obelix. Although the console’s technical boundaries were eminently restrictive, the game’s designers worked with impressive ingenuity to evoke the whimsy and spectacle of the original material. The central objective in Obelix is straightforward yet engaging: players must guide Obelix through a Roman-occupied landscape, helping Asterix to rescue their fellow villagers and outwit persistent Roman legionaries. The game cleverly alternates control between the robust Obelix and nimble Asterix, depending on the situation at hand. While Asterix scurries along the bottom of the screen, dodging foes and collecting power-ups, Obelix thunders above, lobbing massive menhirs to incapacitate encroaching enemies. This dual-character mechanic injects the gameplay with dynamic pacing and compels the player to plan both offensive and defensive maneuvers. Graphically, the title pushes the Atari 2600 hardware to its limits, rendering surprisingly expressive sprites and environments. Obelix is immediately recognizable by his striped trousers and rotund form, while Roman adversaries, although blocky, move with an amusing urgency. The backgrounds alternate between rustic village huts and fortified Roman camps, capturing the rustic charm of the comics. The sound design complements the visual presentation with bouncy, playful effects—each menhir throw or enemy defeat rewarded with rewarding retro chimes. One of Obelix’s most notable achievements is how it maintains humor despite hardware limitations. Playful animations and lighthearted sound effects keep the experience buoyant, preventing it from ever feeling repetitive or dour. The escalating waves of Roman soldiers ensure that the action remains brisk and that players must continually adapt their tactics. Scoring rewards accuracy and timing, lending the game an arcade flavor that inspired many return visits to the joystick. Despite its charm, Obelix was released amidst the tumultuous period preceding the 1983 video game crash. As a result, its distribution was modest and its legacy somewhat muted compared to more famous flagship titles. Nevertheless, aficionados of both classic gaming and comic adaptations hold Obelix in high regard, considering it an inventive translation of paper-and-ink allure to pixelated form. Obelix endures as an intriguing artifact from a formative era in gaming history. It demonstrates how clever design can overcome technical constraints and how iconic characters can be successfully reinterpreted for a new medium. The game remains a delightful, if underappreciated, gem in the vast mosaic of retro gaming nostalgia.

Oberon 69

Oberon 69 is a classic DOS game that was released in 1990. Developed by Intrinsic Software, this game takes players on a thrilling journey through space, where they must battle aliens and explore unknown planets. With its futuristic graphics and unique gameplay, Oberon 69 quickly became a fan favorite and still holds a special place in the hearts of many gamers today. The game takes place in the year 2069, where humanity has finally discovered a way to travel through space and colonize other planets. Players take on the role of a brave astronaut who has been chosen to lead a team on a mission to explore the unknown depths of the Oberon galaxy. But things take a dangerous turn when the team encounters hostile aliens and must fight for survival. One of the standout features of Oberon 69 is its stunning graphics. For a game released in 1990, the visuals are incredibly detailed and impressive. The scenery of outer space and the various planets are beautifully rendered, creating a sense of awe and wonder in the player. The attention to detail is also evident in the design of the alien species, making them both visually intriguing and intimidating. Gameplay in Oberon 69 is also unique and engaging. Players must navigate their spacecraft through the dangerous Oberon galaxy, using weapons and shields to defend against enemy attacks. The game features a wide array of weapons and upgrades, allowing players to customize their gameplay experience. As players progress through the game, they can also unlock and explore new planets, each with its own challenges and surprises. Another aspect of Oberon 69 that sets it apart from other DOS games of its time is the immersive sound effects and music. The soundtrack perfectly captures the sense of adventure and danger that players feel as they explore the unknown depths of space. The sound effects, from the firing of weapons to the hum of the spacecraft, add to the overall atmosphere of the game and enhance the gaming experience. Oberon 69 was met with critical acclaim upon its release. The game was praised for its stunning graphics, unique gameplay, and immersive sound effects. It also received accolades for its challenging difficulty level, as players had to strategize and carefully manage their resources to survive in the dog-eat-dog world of outer space. Even today, Oberon 69 remains a beloved classic among DOS gamers. Its enduring popularity can be attributed to its timeless gameplay, which still holds up against modern games. The game has also been given a new lease of life with various remakes and re-releases, ensuring that new generations can experience the thrill of this space adventure.

Obitus

Obitus is a classic DOS game released in 1991 by Psygnosis. It is a single-player, top-down dungeon crawler RPG. The player takes on the role of a character called Torin, who is a warrior and a sorcerer. The goal of the game is to find and defeat the evil Lord of Obitus. The game's graphics are quite unique, with a mix of 2D sprites and 3D rendered elements. The top-down perspective allows the player to explore the game's world and dungeons with ease. The dungeons are filled with a variety of enemies and traps, and the player must use their wits and weapons to survive. The game also has a variety of puzzles and puzzles elements, which add to the challenge of the game. The combat system of Obitus is turn-based, and the player must choose their moves strategically in order to survive. The player can also use spells and items to defeat enemies. The game has a variety of weapons, armor, and items that can be collected throughout the game, and these can be used to help the player progress in the game. The game has a variety of quests and side quests that the player can complete for rewards, and these rewards can be used to upgrade Torin's weapons and armor. The game also has a variety of NPCs that the player can interact with, and these NPCs can offer advice and guidance to the player. Obitus is an engaging and unique DOS game. With its unique graphics and engaging combat system, it is a great game for both RPG fans and newcomers alike. The game has a variety of quests and side quests that the player can complete, and the NPCs offer helpful advice and guidance. The game's puzzles and traps add to the challenge, and the player must use their wits and weapons to survive. Obitus is a great game for anyone looking for a classic DOS experience.
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