When All Races Invade, I Become Venom and Turn into an Evil God

[Invincible protagonist] + [Villain] + [Dark] + [No female lead] + [Invasion of the myriad races] (A little twisted, so enter at your own risk!)

Wang Zheng transmigrates to another world and gets hit by a meteorite right from the start.

Amazingly, he doesn't die. Instead, he's possessed by a strange alien symbiote called Augustine.

Now, by eating someone's brain, he can acquire their talents and memories!

You can turn invisible? Your brain is mine!

You can summon the dead? Your brain is mine!

You're reborn? Great, I'll take your brain too!

And that's not all. Augustine even gives birth to new symbiotes!

Beelzebub: I have to study hard so I can be as effortlessly cool as the priest!

Cecilia: Wherever the priest's sword points, there lies my heart's desire!

With the formidable talents of his symbiotes, Wang Zheng strides ever farther down the path to becoming an evil god...

(The blurb doesn't do it justice. Read the story for yourself.)