If we can make a system of strategy that isn't trivial, all of the value of the game will flow into the hands of real players and bots will get wiped clean until they get smart enough to play the game

Definitely the next step. One I found engaging was the Zeppelin game in Chibi Fighters. https://eth.chibifighters.io
Its the main way to earn the currency necessary to progress; its on 4 hour cooldown, and plays like flappy bird.