Ginga Eiyuu Densetsu: Arata naru Tatakai no Overture

A comprehensive watch order of the Legend of the Legend of the Galactic series, which includes every entry of the Legend of the Galactic Heroes franchise.
Original Guide: https://myanimelist.net/forum/?topicid=1864056

AEGC Interest Stack index: https://myanimelist.net/forum/?topicid=2017008

*LotGH Gaiden watch order:
- Spiral Labyrinth (1999 series) episodes 1-14
- A Hundred Billion Stars (1998 series) episodes 1-4
- Spiral Labyrinth episodes 15-26
- A Hundred Billion Stars episodes 5-8
- Spiral Labyrinth episodes 27-28
- A Hundred Billion Stars episodes 13-24
- A Hundred Billion Stars episodes 9-12

Legend of the Galactic Heroes OVAs and movies in order of release date.

Anime series that covers all of its original source they're based on, with some notes.

Part 1: https://myanimelist.net/stacks/16812
Part 2: https://myanimelist.net/stacks/19939
Part 4: https://myanimelist.net/stacks/20258
Part 5: https://myanimelist.net/stacks/20709
Part 6: https://myanimelist.net/stacks/20940
Part 7: https://myanimelist.net/stacks/21451
Part 8: https://myanimelist.net/stacks/21523
Part 9: https://myanimelist.net/stacks/29835
Part 10: https://myanimelist.net/stacks/35847
Part 11: https://myanimelist.net/stacks/39870
Part 12: https://myanimelist.net/stacks/41719
Part 13: https://myanimelist.net/stacks/42460
Part 14: https://myanimelist.net/stacks/46685

Movies from 1990-1999
Other Movies: Spring and Chaos

This is a list detailing the in universe chronological order of the 1988 LoGH OVA, including the Gaiden series and related movies. Although all of the Gaiden series and movies are set before the main series, I strongly recommend finishing the series before proceeding to the other content. The in-universe chronological years are written in the description of each work. While the two Gaiden are two separate releases, these should be watched at the same time according to the chronological order, the arc watch order is included in the description of both series.

The Golden Wings movie adaptation is excluded from this list due to having a different director, voice cast and character design than the OVA.

Every cinema or direct to video anime film that came out in 1993.

1992: https://myanimelist.net/stacks/34702
https://myanimelist.net/stacks/34703
1994: https://myanimelist.net/stacks/34759

Disclaimer: There are a few hentai movies, that could be counted as well:
- Dochinpira (1993)

A list of essential anime based in outer space.

A list of some notable anime from the 70's & 80's. Since many grew up with anime in the 90's or later, this list features some well known and culturally significant anime that are underappreciated due to their age and relative obscurity.

It's perfect for anyone that wants to dive into older anime but has no idea where to start.

Part 2: https://myanimelist.net/stacks/42282

It includes all kinds of sci-fi anime subgenres from dystopian, utopian, aliens, space operas, comedy, dark and psychological etc. A variety of selection to explore the world of my favourite genre which is sci-fi. It includes extremely serious nerve wrecking stories to absolutely light hearted fun ones.

2 Movies
108 / 160 Episodes

It's also recommended to skip the episode previews as these provide massive spoilers for future events
The prequels are optional to watch & unnecessary to understand the main story though fans shouldn't be disappointed