Thunderbirds is a single player puzzle solving game.

It seems that a group of Egyptologists have managed to get themselves trapped
deep within an ancient tomb. They’re in deep trouble because their air supply
is running out. Naturally they put in a call to International Rescue who
spring into action.

This is primarily a game of puzzles. It starts before lift off with the player
selecting the equipment to be loaded into Thunderbird 2 which can only carry
forty tons and every ton of equipment costs the player one hundred points.
Should the Mole be taken? What about Thunderbird 4? Should extra fuel be
carried?

The loaded craft, when launched, arrives at the tomb and must fly through a
series of mazes which makes up the tomb but it’s not straight forward. The way
is often blocked and must be cleared. Thunderbird 1 can move blue blocks out
of the way, Thunderbird 2 can move green blocks and both can move red blocks
and as an additional complication some passages are too narrow for Thunderbird
2 to pass through.

Another feature of the puzzle is fuel management, flying uses up fuel but
fortunately an earlier expedition did leave fuel dumps scattered around.
There’s treasure to be collected too.
The game can be played on colour or black & white monitors, the F7 key re-
tones the coloured blocks so the player can distinguish between them. It can
be played either with the keyboard or with the joystick.