I Obtained an Ancient Warship Before the Apocalypse

Pure Sci-Fi With Lots of Cutting-Edge Tech, A Complete and Rich Tech Tree, and War

Pure sci-fi with lots of advanced tech, a complete and well-developed tech tree, and warfare.

Hard Science Fiction That Goes Cosmic in Scale: No Mecha or Monsters, It Has to Be Hard Sci-Fi

It has to be grounded in reality or have a unique theoretical framework, like "The Galactic Empire" or "The Three-Body Problem"... but... it needs to have that web-novel feel... Aaaah, I’m so torn (๑•́ ₃ •̀๑). Cuties, please stop recommending "The Three-Body Problem"! I’ve definitely read a masterpiece like that.

Anything More Grounded, with a Focus on Technological Advancement?

Give me some more realistic novels about advancing up the technology tree. Please don't recommend stories where a System directly gifts the technology and production lines, or even transforms a factory building into a superfactory. That is far too brainless.

Looking for Science and Technology Novels: Dimensions, the Known and Unknown Universe, Genes, and Super Technology

Any Sci-Fi Apocalypse Novels Where the Protagonist Has Their Own Army?

The protagonist has their own army. It could be a fantasy setting with guns, but ideally it would be an army in the apocalypse!

Apocalyptic Base-Building Stories

I'm out of books… 🚷️🚯️

Looking for an Apocalypse Story Where the Main Character Has an Army and Gives Survivors Hope

Any Tech-Focused Novels About an Explosion of Technological Progress?

Looking for books similar to "Thanks for Asking, I Was Discovered Right After I Transmigrated (Conquering the Multiverse)". I don’t want the kind where technology has advanced by leaps and bounds, but the story is still stuck on Earth. That’s no fun.

Please Recommend Good Post-Apocalyptic Books With Leads Who Aren’t Goody-Two-Shoes

Looking for books similar to Ice Age Apocalypse: I Have a Super Vending Machine (Buried in Snow). I've been in the mood for post-apocalyptic stories lately, preferably with stockpiling, a decisive male lead who isn't a goody-two-shoes, and some romance between the leads. Any recommendations?