The game was really fun once I got a hang of it. The controls are intuitive to someone who has played RTS games for sure. Maybe have some in game text with the same information as the itch game page. I know that you are working on updating the UI, the current one is a little hard to see, especially when there are dark game models (like the walls or dark alloy) behind the texts. Sometimes I couldn't tell why I can't build a building at a location (maybe due to the slope), a little more feedback would be nice. Another improvement could be to provide a visual feedback when a game is selected. Maybe having a queue of building a few units in the could also be nice as I would not have to keep clicking back to my buildings too see if the units has finished building and I have to start a new one. Overall loved the game as an old school RTS game enjoyer, but too old to micro units :P
I think extension with new units would be great. I'm excited to play this more in the future.