As defined on this very website:
A game that has some of or all of the mechanics: Limited interaction or the ability to be played without interaction, rapid growth - often exponential, prestige mechanic(s), An end goal/mission or a general goal of getting a higher amount of currency, and a system of buying and upgrading buildings, units, or similar.
This game only has an upgrade system. No clear goal, growth is slow, no prestige, player interaction is required to 100%.
Just "number go up" doesn't make this an incremental.