Oath is an Action game, developed and published by Attic Entertainment, which was released in Europe in 1991.

Obelix is an Action game, published by Atari, which was released in 1986.

Oberon 69 is an Action game, developed by Diabolic and published by G.LL., which was released in Europe in 1990.

The player takes on the role of medieval history lecturer Wil Mason, whose car breaks down while he drives through Snowdonia in a storm. He seeks refuge in a deserted tower, only to wake up in a strange world.

Obitus is essentially a role-playing video game, but with some arcade-style action as well. It combines several graphics styles and perspectives.

Reviewer David Upchurch gave the Amiga version a score of 830 (out of a possible 1000), praising the graphics and gameplay, but noting that it may not appeal to hard-core RPG enthusiasts.

You are Drak, the last of the Obliterators, a genetically enhanced and awesome fighting machine, bio-engineered for the execution of incredible tasks, the ultimate solution to the most cataclysmic of predicaments. In the voids of Federation space an alien cruiser has materialized. It's a ship of sinister and foreboding power. Federation defenses have been smashed. Earth lies exposed, there is only one hope left and you are it! Summoned by the Federation, your assignment is to use a prototype matter transporter to infiltrate the alien cruiser. Armed with a particle beam disruptor, lasers and whatever the alien habitat can provide, you must cripple the alien vessel, thus enabling its destruction.

Obstickle is an Amiga single screen platformer game released in 1995 by F1 Licenceware.

O.B.Y. 1 is an Action game, developed and published by Magic Soft, which was released in Europe in 1991.

Ocean City Defender is a Shoot-'Em-Up game, published by Zellers.

You have discovered a long-sought-after buried treasure, and just when you thought your troubles were over, things get relly tough! There's a persistent shark who thinks that the treasure belongs to him, and he is after you! As if that were not enough to contend with, there's a big old octopus sitting right above your trove who keeps reaching down to check things out. There you are, shooting at the shark, fighting off the octopus tentacles, and you realize your oxygen supply is running low. Your partner, in the boat, keeps dropping you a line, and you better run over and fill up.

Oddworld Adventures is an Action game, developed by Saffire and published by GT Interactive, which was released in 1998.

Oddworld Adventures 2 is a significantly cut-down version of Abe's Exoddus, with only a few similar levels and an absence of plot.


After saving all the Mudokon slaves from Rupture Frams, Abe found himself a hero to his people. After the celebration in his honor, he fell off the stage, bumped his head and had a vision.

In his vision, three of his ancient ancestors came to him that the Glukkons had more slaughterhouses besides Rupture Frams. Abe must now stop the horrors that is the Soul Storm Brewery!

Atari's superb variant on "Breakout" has up to 3 players bouncing balls, breaking bricks, and ultimately trying to get the ball into the exit. Also includes multiplayer 'bonus rounds' where players compete to be the last man standing in a "Pong" match.

tennis game made in 1984

Some say that the legend of grand master Kung Fu Lu is centuries old. It begins soon after the Great Wall of China was erected. Near the new wall stood an old, ugly wall in which spirits lived. The people wanted to tear the evil wall down, but were afraid. Kung Fu Lu was a young lad then who had been granted five lives. One day a mystical dragon appeared on the old wall and threw a ball directly at him. Lu swung his walking stick and smashed the ball back. Bricks shattered and magical objects bearing good fortune and special powers fell from the Wall. Kung Fu Lu tried to catch as many as he could. Lu discovered that the battle for wealth and fortune has a very costly price. If he missed the ball with his stick, he lost one of his lives. And guarding the Wall was a cunning blackbird whose task was to prevent Kung Fu Lu from smashing the bricks. Patient Lu tried again and again to shatter the bricks. Persistence pays and eventually he became skillful in destroying the brick wall. He moved through all four difficult challenges to gain the honorable position of Master. The legend tells us only those who have fortitude and determination can ever match the brilliance of Grand Master Kung Fu Lu. Are you one of the chosen?

Off Your Rocker is an Action game, published by Amiga, which was cancelled before it was released.

Official Everton FC Intelligensia is a Sports game, developed and published by Amfas Computer Software Ltd., which was released in Europe in 1990.

Ogre is a Strategy game, developed and published by Origin, which was released in Europe in 1986.