Galactic Bazaar
Allow manual entry of quantity
Allow for time-dependent fluctuation of prices
Allow prices to rise and fall with purchase and sale to scale of galaxy size (larger galaxy = smaller changes)
This is excellent.
Also please consider the resource scarcity setting on map creation.
2 Questions;
1. Is the market value of an item considered in trades with AI civs?
IE if anti-matter is selling for 10 and buying for 5, and the AI civ asks for 20 anti matter as part of a deal, are they in effect asking for 20 (amount of anti matter) * 10 = 200 credits worth of stuff? or 20 * 5 = 100 credits worth of stuff, or is the credit value of the stuff not a consideration at all? Knowing would make it easier to substitute items during trade offers.
2. Is there a limit to the market inventory or should there be?
IE is there an inventory amount for each item in the market? Can/should the market ever run out? Is there a maximum inventory the market would want to keep 'on hand' once the price drops to minimum?