Aquaventure

Prototype

Aquaventure is an unreleased Atari 2600 prototype from 1983, programmed by Gary Shannon, with Tod Frye writing the display kernel. It never appeared in any Atari catalogue or press material, and nobody knew it existed until a copy surfaced at a collectors' gathering in the late 1990s. Its finder said he had bought it at a flea market in Florida. You can play this lost undersea game here in your browser.

Play Atari 2600 Aquaventure online

  • ← ↑ ↓ → Joystick
  • Space Fire
  • F12 Reset
  • F11 Select
  • F4 / F9 Difficulty

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9

How to play Aquaventure online

  • Swim: arrow keys
  • Fire the spear gun: Space bar
  • Start a new game: F12 (the console’s Reset switch)
  • Save and load your progress: Ctrl + 0–9 saves to a slot, Alt + 0–9 loads it

Gameplay

You control a diver who swims down through an undersea cavern to fetch a treasure (which looks more like a small house than a chest), then carries it back up to the first screen and touches the mermaid waiting there. Fish, sea horses and the jagged cavern walls stand in your way. Your spear gun removes a creature for a while and scores 500 points, but it comes back, faster and less predictable than before.

Air is shown by a turtle crawling across the top of the screen. If it reaches the ā€œAirā€ sign before you finish the trip, you lose a life. Each successful return makes the cavern one screen deeper, up to five screens, and the water changes colour as you go deeper.

Tips

  • Shoot only what blocks your path. Every creature you hit returns faster, so extra shots make the way back harder.
  • Keep an eye on the turtle. The mission only counts once you are back at the mermaid, so start the return trip as soon as you have the treasure.

Why it was never released

Gary Shannon later recalled that he finished coding and testing the game before moving on to his next project, Mind Race. The most likely reason it stayed on the shelf is the freeze on game development that Atari CEO James Morgan ordered in September 1983 while every project was reviewed. The known prototype ROM is dated August 1983, and some ROM collections list it under the alternative name Sea Sentinel.

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