https://steamcommunity.com/sharedfiles/filedetails/?id=2015155254&searchtext= I've been using this for some time, but finally published it on the workshop. This mod sets dynamic limits to the number of units a civ may field at any given time. The units are broken up into groups(land combat, naval, support, religious), and limits increase throughout the game based on #cities, districts, and district buildings. This mod is compatible with DLC and Modded units, so long that they fall under standard formation classes. I currently use this with the Steel and Thunder unit mods. IMO this greatly improves the quality of mid-late game, as the map normally becomes overcrowded and bogged down. This is an expansion of an implementation first conceived by Gleb Bazov here: https://forums.civfanatics.com/threads/coding-a-unit-limit-land-sea-air.612443/ Enjoy!