I'm a solo game dev and full time power engineer. I'm currently working on a game called Power Network Tycoon (also on Steam, Humble Bundle, Mac/Win Game Store, Xsolla etc), which is a physics based power grid simulation.
Steam: https://store.steampowered.com/app/2429930/Power_Network_Tycoon/
Steam Demo: https://store.steampowered.com/app/2776100/Power_Network_Tycoon_Demo/
Humble Bundle: https://www.humblebundle.com/store/power-network-tycoon
Mac Game Store: https://www.macgamestore.com/product/15970/Power-Network-Tycoon/
Win Game Store: https://www.wingamestore.com/product/15970/Power-Network-Tycoon/
Game website: https://powernetworktycoon.com/