One game that has some similarities to SN right now might be Subsiege.
In this game you build up to six units and your goal is to be last man standing, so to say. The map works like in a moba, the units can be upgraded with passive and active enhancements but there are no true heroes/Champions that are better than your units.
There's also additional pressure in the form of O2-supply, which works like a timer. You have to kill creeps or other player's units to get more O2. If it runs out, you lose.