That kind reminds me Backyard Buzzing, a flashgame about insect warfare, it was pretty cool, I think you didn't gathered resources instead you got points from killing enemy insects which then you could invest into better army, towers and barracks. The problem with this game the map is very bland and there was a point where no new enemy bases could could anything against your big ass insect army.
>Also shill some older RTS games you've never seen mentioned
There's this Warcraft 3 map which I and a friend are really big suckers about: Imperia, it's basically like AoE but you end with mechas, planes and nuclear bombs in late game. The resources come from fathering lumber but the gold came from taxes on your houses, you can also get gold from a fraction of the global demand (generated from all the house from building industries which get revenue from a fraction of the global demand (generated from the houses), so you are not only fighting your enemies military but also economically, a player can build a big ass industry and let everyone else without their industrial income so forcing them to starve.
Another cool feature is that you can turn other players into vassals instead of destroying like in most RTS, so they could exists and give you a bit of revenue as exchange, they can still liberate themselves and fight you back so you'd have to be careful.
The late game units are my favorite part, there are nuclear bombs, ships with big range to destroy inland settlements, tanks, giant robots, spies, planes and zeppelins.
I'm pretty sure this game had a decent niche back in Ombu server (since the author mentions his Ombu nickname when the game starts and there were tournament versions of the game), sadly my friend and I got into it when it was already dead, so finding people to play with it's a bit hard (especially because the game is in spanish), we moslty play 1vs1 matches.