From: JasonP - Under Directory: Game Design

This system is a high crunch, simulation-minded engine for roleplaying wicked cool transformers, inspired by Transformers. GTX is short for: Gaming Transformers eXperiment. The name of this working version of the game is Omicron, denoted for both its common usage in science fiction and that fact that it means 70 in greek, which is the amount of kilograms of alpha nanites each machine starts with.

The ideal system here is complicated, but not impossible to handle. It will allow you to use a point-buy system to design and create your transformer, with stats for all features it may have as a machine.

GTX uses a progressive array of die codes to value: ability, worth, and strength. Here are the die codes the game uses in their order, with standardized base costs. The higher the step and die code, the more value you have in a given rating, and the die cost is higher. The primary cost of a die is its number of faces, so that a d6 costs 6. You pay this for a die bought for primary uses. The secondary and tertiary costs are used for buying additional die codes for a given module.

Each transformer is a system of modules, a network that integrates a core module and then interfaces with additional modules.