Christine Computing was a small family business based at Watford in the UK, run by Ian Godman and Christine Godman.
They sold modules and hardware and their own software.
Advertised software for the TI99/4a included:
Blast it - disarm bombs in sequence with a wire guided robot within a time limit.
Core! - Dodge left and right to avoid birds, clouds, aircraft; then go through some caves and finally through a 3d maze.
Fruit Machine - one arm bandit simulation
Sir Slurp-a-lot - a maze of bars with glasses to consume
Spudz - score points as you collect potatoes without getting caught in the shadow cast by the setting sun or falling into your trench