Infinite Flow: I Became the Lord God of the Lord God's Space

No saintly do-gooder, no female lead, decisive and ruthless, villains stay smart, and the protagonist wins by a fair margin!

The protagonist unexpectedly became the Main God of a Main God Space, gaining the ability to reclaim reincarnators who die there and earn rebates from their spending.

As history's first self-aware Main God, he leads billions of reincarnators (with no restrictions on race or world, anyone can become a reincarnator) through the Chaos Sea to conquer one universe after another, eventually evolving into the highest form of Main God: the Chaos Main God!

A million-strong army of alien beasts? I'll wave my hand and summon hundreds of thousands of reincarnators who have unlocked the third stage of the genetic lock...

A space fleet? Just send those reincarnators who study pure energy bodies to fight them...

Cthulhu gods? Wait, I'll handle this one myself... Activate the Chaos Main God, and the power of billions of reincarnators shall gather within me!

Reincarnators from other Main God Spaces: Hold on, you're the Main God. Why are you getting involved personally?