Dawn of the Void - Chapter 128: Revelations

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?

- Description from novelbuddy

Jin Runcandel is the youngest son of the greatest Swordmaster. After he gets himself kicked out of their clan, he meets a tragic fate…but before he dies, a God gives him a second chance. Now he must use his new power for good.

Those Years I Opened a Zoo

Duan Jiaze, who was poor, inherited a private zoo after graduation, and was forced to download a “hooligan” APP called “Ling Xiao Hope Project”, which ushered in other “animals” such as Luya (golden crow), Daji (nine tailed fox), Bai Suzhen (white snake) and Black Bear. App will punish if he fails to complete its business-related tasks regularly.

In this way, Director Duan was like ”a duck driven onto a perch”, and began his journey of unifying the world’s demons while journeying on a road to be becoming famous.

- Description from Novelupdates

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates