Wasteland: My Players Make Me Invincible

[Multiple heroines + not a career-focused story]

Three hundred years after nuclear war, civilization has declined, systems have collapsed, and ferocious beasts roam everywhere. Chen Hao, a decent young man, transmigrates to a wasteland world by sheer coincidence. From the start, he gets an underground base, and all development depends on players grinding themselves to the bone.

Years later, when Chen Hao faces an enemy army:

Enemy army: Charge!

Chen Hao: So you have a lot of people? What good is a big crowd? You need connections to make it in this world, you little punk!

Players with explosives strapped to their backs: Kill them all! Protecting our home is our duty. Here come my contribution points!