This list a mishmash of all kind JP novel, hope you find good stuff to read, rank doesn't matter

Hunters, dungeons, gates, etc. Sci-fi & fantasy.  I’ve read these and enjoyed them. 

All kinds of UF in BL. They're just so perfect together, BL & UF. [in_love]... more>>

If you're new to Unlimited Flow (UF) or just getting to know it, here's a definition for you to clear up your confusions and misunderstandings about UF.

Unlimited Flow = A genre featuring horror, challenge, and survival games. A character summoned into unique spaces separate from the real world and have to complete tasks, generally stuff like puzzles, survival or horror games. The final purpose is to survive. 

(Definition not mine, credits to unlimitedflowdanmei.carrd.co)

Some of the novels listed in this recommendation list doesn't have UF tags, but I added them due to their horror, mystery, supernatural, and survival (game) tags. 

All of this have romance, depending on the novel, the romance may or may not be the main plot of the story. Though, romance is mostly a subplot and slow romance on UF.

I finished most of it but not all of them are completely translated in English.  I continued reading most of them in raws relying on mtl. You might see my reviews on some of the novels here, since I liked to write reviews most of the time.

They're not ranked from my favorite to least. They're ranked in alphabetical order. [ocd_alert!]

I'll continue adding novels every time a new one caught of my attention [domineering_president_posture], since I love this combi. 

Thank you! I hope my list helps you! [wink] Love you all.

(P.S. There's a part 2 for this list.) <<less

I've read novels over the years, and I guarantee you won't regret diving into them.... more>>

No BL, GL. Sorry that's not my type of novels. 

Other novels from another websites (webnovel, scribblehub..)

Time emperor (fanfic)
https://www.webnovel.com/book/time-emperor-(champion)_17500339706298405

Fox in a inverted world 
https://www.webnovel.com/book/fox-in-an-inverted-world_19203318006781205

Author POV 
https://www.webnovel.com/book/the-author's-pov_20524563005115705

Administrator
https://www.scribblehub.com/series/94510/-the-administrator-/

School idol (yandere/gore novel)
https://www.wattpad.com/story/296700221-the-school-idols-yandere-harem

Shadow s*ave
https://www.webnovel.com/book/shadow-s*ave_22196546206090805

A Budding Scientist in a Fantasy World
https://www.scribblehub.com/series/256241/a-budding-scientist-in-a-fantasy-world/

The Reincarnation of Alysara 
https://www.scribblehub.com/series/278151/the-reincarnation-of-alysara/

Nanomancer reborn 
https://www.webnovel.com/book/nanomancer-reborn---i've-become-a-snow-girl_14064812306272705

Mother of learning 
https://www.royalroad.com/fiction/21220/mother-of-learning

My vampire System
https://www.webnovel.com/book/my-vampire-system_16709365405930105

Library of Rain
https://www.scribblehub.com/series/858447/library-of-rain/

For more recommendations, check out my next list: https://www.novelupdates.com/viewlist/83142/ <<less

Mystery solving, mind numbing questions, ghosts and late night stories, thrilling adventures with a little bit of sweet romance. What more can I ask for? ... more>>

The list is in no particular order. 4.0+ ratings. 

P/S: Some of the recommendations don't have any comments on it because they have too few translated chapters but they have great potential. I'll edit it later once the translators upload more chapters.  <<less

How would you bring technology into a fantasy world? Make sense of the magics? Feed people and get rid of the corrupt nobles? This is specifically on developing a city or territory, not:
- Developing a dungeon/core (see my other list: https://www.novelupdates.com/viewlist/10742/)... more>>

First, a few worthy mentions that aren't on NU:
1. Castle Kingside (rewrite) - a lot of inspiration from Release that Witch, imo improved! Warning: it's slow. Kingdom only begins around c60ish.
2. The iron teeth - although territory development comes late in the story, it's well done and exotic, being based on a goblin kingdom
3. 1632 (published book) - an American village goes back to the 30 years war. It's much less fantastical, but has a lot of similar elements to other kingdom building novels.
4. The Eagle's Flight - highly intricate fantasy webnovel
5. Defiance of the fall
6. Randidly Ghosthound - neither Randidly nor Defiance of the Fall focus on kingdom building, but they both have elements related to setting up a post-apocalypse system city - complete the quest to get the village crystal/coin!
7. The Expansion (Legend of the Arch Magus) - [have not yet read] - recommendation from Hitexh in the comments
8. Enlightened Empire - weaker than the others <<less

What's better than a possessive ML?  A possessive, obsessive, thirsty gay ML!
Re: thirsty and protective tags - for novels I've read only. Please feel free to suggest more.... more>>

BG list of possessive MLs - https://www.novelupdates.com/viewlist/7256/?ft=yes <<less