
Producing lots of infantry (see image): Select a Barracks, click on Light Infantry, Heavy Infantry and Archer (or press G, H, A), then press the ∞ button or Q. Infinite Queue becomes especially powerful with the Artificial Intelligence future technology researched, which allows to produce units instantly. You can add technology/upgrade research items with the Infinite Queue activated: The research item is simply added to the end of queue and will be processed eventually, before the queue picks up where it left off. Reaching the population limit will not deactivate the Infinite Queue - the building continues to produce new items as soon as the limit is increased. If you're lacking the resources to produce an item, it is not produced and automatically removed from the queue. When activated, the ∞ button will flash green.
Infinite Queue can be activated and deactivated by pressing the small gray button with the infinity symbol ∞ right to the progress bar or by pressing Q. When a unit is created, it is automatically placed at the end of the queue and will be produced again. When activated, a building will continue to produce units in the order currently specified in its queue for as long as there are resources available to produce them and the Population Limit allows for it. Infinite Queue (hotkey Q) is an option of all structures that have the ability to create units. The gray ∞ button to the right turns Infinite Queue on and off.