A few generations ago much of humanity left the surface of their world for grand floating cities in the sky. Virtual utopians of the modern age, pristine in beauty and with every convenience. If you can pay for it. Down bellow on the planet's surface the poorest of humanity are left try and scrounge out a living by mining for raw materials and in particular a glassy, black substance called monthium, a magnificent power source of great energy and lifespan. It is used in power plants to float the cities above the planet, power all consumer devices and propel vehicles indefinitely. So long as the mining continues energy will remain a non-issue to the upper classes above.

Society is divided into three main castes. The lower class who mine resources for the cities above, the middle class who populate the cities and make up the workforce of various mega corporations and the corporate officials who control everything. It is possible to move up in these castes, but it is rare and a promotion is almost always equalized by someone else's demotion.

The everyday citizen need not worry about open conflict between any great powers. War would disrupt business so the mega corporations settle disputes with mock battles and tournaments that are televised to the whole world for entertainment. These battles are fought with mechanical frames, humanoid vehicles designed for combat and powered by monthian reactors. They replaced most conventional fighting vehicles, but are still early on in their development and the populace is entertained as much by their violent combat as their technological advancement. Occasionally however, grand tournaments are held with fortunes for prizes. Such events are open to anyone who wishes to enter and the third of these tournaments is to be held soon with the grandest prize yet. Your very own flying city for your own personal use. Perhaps a way to escape the slums bellow a private getaway for you and your richest friends or perhaps a staging point for a revolution. Its all up to the winner.

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So yeah mecha tournament put on by mega corps to pacify the citizens of magnificent sci-fi floating cities. We'd probably start things off shortly before this tournament and possibly continue past it to maybe a war or something. I want mechs to be more on a lower end of power in general. feel free to have some crazy thing in say a prototype, this tournament would be a great place to unveil new technologies, but try and limit to maybe one or two cool advanced things, like turning invisible, having energy weapons or transforming. Additionally I'm going for a height for these more like 20-30 feet rather than 20-30 meters.