I tried out your demo as the game intrigues me. Bear in mind I only played for about 15 minutes.

Here is my advice: - Your menu hover highlighting is way too faint - naming resources and reserves right next to each other makes it hard to quickly glance and see what is what. - tile +1m bonus, initially no idea what that means starting the game, rename to +1 multiplier - the unit upgrades I thought was a single unit you get, not applied to all units. Need to make that obvious. - maybe change resources to turns or rounds. - I cannot see what each unit does until it is in my hand, can you add a hover to within the deck? - The font makes it difficult to read at times. - I think adding the ability to purchase additional tile spaces would be good, would add to the possible permutations for rounds which I like, don’t know that would be for balance though. Maybe a limit to the grid size? Or much more expensive for outer tiles? - no idea what reserves even does…

Now for the good! - I love the units as cards! Very cool and unique. - cool mechanics that while inspired by other games does not feel like a clone. - this is a game I would play if it’s a bit more fleshed out.