Most novels are standalone. The reading order really doesn't matter. Everything is in its own interconnected multiverse, though

If I had to put them in a strict chronological order, NOT THE READING ORDER,

1. The troll comes first.

2. Then the independents. Nero Zero, How to Kidnap Your Princess, they don't really fit anywhere. But characters from these make cameos or are support cast in later works.

3. Catherine 2.0 and In Loki's Honor happen simultaneously. Yznarian is in a 1,000:1 time dilation bubble related to Earth (1000 Yznarian years to 1 Earth Year). Cat_2.0 is in 2021 though a returner is elected instead of Joe Biden.

4. Sara's Armageddon right after Catherine 2.0 even though it is in 2019 of another timeline.

5. Decompose! goes right after Sara's. Allegedly, there's a sequel to Cat_2.0 that links to Decompose! but it exists only in my head. I hadn't yet bashed enough plastic cubes to make it a reality.

6. Discarded, Half-Eaten Apple Core next. it is in the same Earth as Cat_2.0

7. My Monster Adventurer's Guild. Again, same "world", though [spoiler].

8. Hardcore Dungeon Core is supposed to be a side-story of a support character to MMAG. Though it happens simultaneously with DHAC.

9. The remanining fiction entries in my profile can be ignored.

10. Multiverse Judges doesn't fit anywhere but it can be said to be after the above.

11. I have two unpublished manuscripts that should be right here after everything. Especially after DHAC, since it uses some characters from that story.