Seven Days to Die: From the Start, I'm Running from a Girl with Twin Tails

The game 7 Days to Die transmigrates into reality, and the protagonist discovers that he has a MOD System with him.

While others are begging for three bullets, he starts with a hundredfold ammo MOD and sweeps through hordes of zombies!

[Ding! Exchanged for the “Infinite Ore Vein MOD.”]

He makes bullets from iron ore and explosives from potassium nitrate, until he discovers a blood-and-flesh furnace deep beneath the earth...

“So this thing is behind the zombies' endless respawns?!”