I would also suggest 'Grimgar of Fantasy and Ash'. Although not as obvious as the others, there are elements that can be related to an 'evil god' concept. The world is harsh and there are hidden forces at work that could be interpreted as such. The characters' struggle against the unknown and the difficult world they live in can be seen as a fight against an almost 'evil god' - like entity that controls their fates.
One popular 'evil god' light novel could be 'Overlord'. In this novel, the main character has a rather 'evil' presence in the new world he finds himself in. He rules with an iron fist in a sense, and there are many elements related to power, strategy, and a different kind of morality. Another one might be 'Re:Zero − Starting Life in Another World'. The Witch of Envy can be considered an 'evil god' - like figure in the story, and the complex plot that revolves around her influence makes it an interesting read.
There's 'Konosuba: God's Blessing on this Wonderful World!'. While it's more of a comical take, the goddess Aqua can be seen as an 'evil god' in some aspects, especially from the main character Kazuma's perspective. She's self - centered and causes a lot of trouble for him. It's a really fun light novel with a unique take on the isekai genre and characters that seem to have 'evil god' - like traits at times.
Chapter 34, "Golden-eyed Demon Sheep", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. Early on, Keep pulling back!" The seven of Xia Chuan pulled the Cold Beast.... By the end, Unfortunately, his warning came too late.. Inside the broader battle storyline, the chapter closes with Thud......, which gives Xia Chuan a stronger narrative position and pushes the power growth onward.
Chapter 512, "Just A Little More", is the clearest early answer because it turns Damien's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The Forest of Twin Disasters did not rest. and follows through with And without another word, he went hunting again..
Chapter 61, "Inch Knife", is the clearest early answer because it turns Yang Ning's situation into a concrete plot event. Early on, Up until now, the iron weapons that Xia Hong had seen were basically.... By the end, But in the next moment, everyone stood agape..
Chapter 135, "The Fearless Mirror Immortal [Three in One]", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. The chapter gives readers a real answer by opening on Snow Mane could pretend to be dead, and pretend it did well. and ending on The environment here was evidently much quieter than outside..
Chapter 466, "Departure", is the clearest early answer because it pushes Damien into a new phase or setting. The chapter turns that into something concrete by moving from Damien drifted in two spaces at once. to The silence in Delwig was heavier than he remembered..
Chapter 530, "Sleeping After Chaos", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from The roar of the colossal beast still echoed faintly through the... to His breathing was slow and steady.. What makes it stick is that the chapter closes with At least, that was what the demon believed., which gives the central conflict a stronger narrative position and pushes the power growth onward.
Chapter 520, "Storming The First Base", is the clearest early answer because it turns Damien's situation into a concrete plot event. The setup is Damien did not rush into the assault., but the pressure keeps building through For two days after the eastern purge, he hunted mana beasts.... Once the chapter lands on He paused only briefly before stepping inside., the chapter closes with And this time, he would not arrive quietly.
Chapter 120, "Rat Swarm Unrest, Mad Bow Making [Large Chapter]", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on The six nodded, put down their chisels, and followed Xia Hong out of... and ending on Not to mention exchanging for Cold Beast Meat, it was almost enough....
Chapter 138, "The Bizarre Mirror Immortal Gu, Cold Resistance Level? [3 in 1]", is the clearest early answer because Yuwen Hu finally turns buildup into a real advancement. The chapter turns that into something concrete by moving from Mirror Immortal Camp, inside a wooden house next to the bamboo... to After a reproachful remark, he saw the Cold Beast Blood and brush on....
Chapter 122, "Finally Started to Retreat [Three in One]", is the clearest early answer because it turns Primary Detoxification Pill's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Zhao Long nodded and immediately took out a pill identical to the one... and follows through with Unlike ordinary rodent noises, hundreds of giant rodents hissed and....