On-Line Systems

Showing all 10 results

• 

  Hi-Res Adventure #0: Mission Asteroid

  Apple II · Atari 8-bitReleased1983★ 7.1/10Strap into your helmet and answer Mission Control’s urgent call: an asteroid is barreling toward Earth, and only you can stop it. In this streamlined text…Read more
• 

  Hi-Res Adventure #1: Mystery House

  Apple IIReleased1980★ 6.7/10Mystery House still has the unnerving little spark of a locked-house murder mystery: you step into a Victorian mansion looking for jewels, then watch the other…Read more
• 

  Hi-Res Adventure #2: The Wizard and the Princess

  Apple II · Atari 8-bitReleased1982★ 6.8/10Embark on an epic quest to rescue Princess Priscilla, the beloved daughter of King George, from the clutches of the evil wizard Harlin. Only one brave…Read more
• 

  Hi-Res Adventure #3: Cranston Manor

  Apple II · FM-7Released1981★ 7.6/10Cranston Manor is the fourth thrilling installment in On-Line System’s Hi-Res Adventures series, joining Mystery House, The Wizard and the Princess, and Mission Asteroid. In this…Read more
• 

  Hi-Res Cribbage

  Apple IIReleased1980Experience the classic strategy of cribbage in a sleek digital package, pitting you against a smart, adaptive computer opponent that learns and grows more challenging with…Read more
• 

  Jawbreaker

  Apple II · Atari 8-bitReleased1981★ 6.7/10This faithful clone of the iconic Pac-Man puts you in the sharp teeth of Jaws as you navigate winding mazes, gobbling every glowing pellet while outmaneuvering…Read more
• 

  Sabotage

  Apple IIReleased1981Take command of a high-powered, swiveling turret perched at the bottom of the screen and unleash salvoes on waves of daring foes. Helicopters cruise overhead at…Read more
• 

  Skeet Shoot

  Apple IIReleased1980Experience the thrill of clay pigeon shooting with up to five players at eight fixed positions, each offering a fresh challenge as you move through the…Read more
• 

  Threshold

  Apple II · Atari 2600Released1983★ 6.5/10Take the helm of Threshold, a pulse-pounding shoot ’em up that delivers classic arcade action with a futuristic twist. You pilot a sleek starfighter along the…Read more
• 

  Time Zone

  Apple II · FM-7Released1982★ 7.2/10You’ve been tapped by a mysterious benefactor to save Earth’s future from the tyrannical ruler of Neburon, and you’re armed with the ultimate weapon: a personal…Read more