Sea Dragon

Adventure International advertisement
from the March 1983 issue
of 80-U.S. Journal

Sea Dragon, written by Wayne Westmoreland and Terry Gilman, was one of the most popular games for the TRS-80. It was released in 1982 by Adventure International, which also commissioned versions for other computers:

• the Apple II by John Anderson in 1982
• the Atari 400/800 by Russ Wetmore (Star Systems Software) in 1982
• the TRS-80 Color Computer by Jim Hurd (Coniah Software) in 1983
• the IBM PC by Hervé Thouzard in 1983
• the Commodore 64 by David H. Simmons in 1984

As far as I know, this was the TRS-80 game adapted to the most computers.

According to Wayne Westmoreland, Sea Dragon was inspired by the arcade game Scramble, which was released in 1981. The ending of the game (which involves destroying a nuclear reactor) was inspired by the arcade game Phoenix, released in 1980. Of the TRS-80 games that Wayne Westmoreland and Terry Gilman wrote, Sea Dragon was their favorite.

Title screen

Underwater mines

Sea Dragon was described this way in a 1982 Adventure International catalog:

Sea Dragon is a slick, arcade-ish simulation that puts you in command of a nuclear sub that’s armed to the hilt with deadly missiles and torpedoes. You guide your submarine past underwater mountains and through labyrinthine passages while avoiding webs of explosive mines that rise from the sea bottom. Additional dangers include mine-dropping ships, enemy attack stations, falling stalactites, and deadly lasers—any of which could keep you from your ultimate goal: destruction of the incredibly powerful nuclear reactor at the end of the undersea course! Maneuver around these dangerous obstacles and surface to refuel your ever-decreasing air supply—if you can!

Entering an underwater passage

Falling stalactites and lasers

The playing field of Sea Dragon scrolls horizontally and is very wide; one advertisement described it as “the equivalent of two dozen screens laid end-to-end.” The goal is to pilot the submarine to the very end and destroy the nuclear reactor found there.

Colliding with an underwater mine destroys the submarine, as does hitting the ground or any of the other obstacles in the water. Another complication results from the need of the submarine to surface periodically and replenish the air supply. This creates a problem when the game moves into a series of underwater passages with no open air.

Sea Dragon was one of the original games featured on the scoreboard in “The Gamer’s Cafe,” and it was often mentioned in the column. Long-time readers of “The Gamer’s Cafe” may remember the game playing a pivotal role in the incident that led to the exit of Winthrop.

Mine-dropping ship at open sea

Nuclear reactor at end of game

Like most of the Adventure International games, there are differences between the versions of Sea Dragon. Several have enhancements specific to that version, such as the voice effects in the Apple II and TRS-80 Color Computer versions. (And who can forget the dancing sailor from the title screen of the Color Computer version!) But the game play and the look remained quite close to the TRS-80 original.

Sea Dragon for the TRS-80

Sea Dragon for the Apple II

Sea Dragon for the Atari

Sea Dragon for the Coco

Sea Dragon for the IBM PC

Sea Dragon for the Commodore 64

In 1995, Wayne Westmoreland released all of their TRS-80 games into the public domain. You can download Sea Dragon and all of their other games here:

Games by Wayne Westmoreland and Terry Gilman

Written by Matthew Reed | Filed Under Arcade Games · Adventure International · Terry Gilman · Wayne Westmoreland