I'm really enjoying Secret Wars, and have been reading the main series and many of the tie-ins.
I have a structure with my reading of new comics, that I read everything I buy the week it's out, and then a second time in full arcs before I file them away (in ways that I can retrieve them for more reading later). This is easy with most comics (buy Amazing X-Men, read 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and then 1-5). But it's a bit more complicated with events, because I want that second read to be in chronological order.
So I'm hoping to come up with a reading order for Secret Wars. One that is fairly comprehensive, but also fairly accessible.
I haven't read everything, but among everyone around we all have read everything a few times over. I would therefore be grateful if someone could provide additional insight into chronology that I've missed. I will put my tentative chronology below, and will integrate new comments as people post them.
Note: I'm not really breaking this up issue by issue (except for the main series), nor am I breaking up individual stories in the anthology titles. If people do have more precise timing for those, let me know and we'll re-arrange as needed.
BASIC TIMELINE:
Here's a very quick, rough timeline that I think we can get behind (for those who want to keep things fairly simple):
-Time Runs Out
-Secret Wars 0-1
-All Last Days stories
-Secret Wars 2
-All Warzones stories
-Secret Wars 3-4
-All Battleworld stories
-Secret Wars 5-9
MORE COMPREHENSIVE TIMELINE:
Here's the much more detailed one, for which I would appreciate help refining it. In general, as they are largely independent of the main story, I've put Warzones together after our first glimpse of Battleworld in Secret Wars 2. I've put whatever timeline indicators I can find in the appropriate line. There are some spoilers, especially vis-a-vis character deaths.
-Avengers World 17-21 (Before Time Runs Out)
-Avengers 35-44 and New Avengers 24-33 (essentially alternating) (Time Runs Out)
-Miles Morales: The Ultimate Spider-Man 10-12 (essentially Ultimate Last Days; unrelated story that ends with incursion)
-Captain America and the Mighty Avengers 8 (Last Days; I understand this also starts before the incursion)
-Spider-Woman 10 (Last Days; I understand this also starts before the incursion)
-Black Widow 19-20 (Last Days; I understand this also starts before the incursion)
-Secret Wars 0
-Secret Wars 1
-Loki: Agent of Asgard 14-16 (Last Days)
-Captain America and the Mighty Avengers 9 (Last Days)
-Ms. Marvel 16-19 (Last Days)
-Magneto 18-21 (Last Days)
-Punisher 19-20 (Last Days)
-Silk 7 (Last Days)
-Deadpool 45 (Last Days, but not branded as such)
-Last Days: Ant-Man one-shot (Last Days)
-Silver Surfer 13-15 (Last Days; takes place after the incursion)
-Loki: Agent of Asgard 17 (Last Days; takes place after the incursion)
-Secret Wars 2 (Battleworld is a thing now)
-Secret Wars Journal 1-5 (Battleworld title; anthology stories scattered around the timeline, before our main story - issue 1 must be before Siege, as Kate Bishop ends up on the Shield)
-Secret Wars: Battleworld 1-4 (Battleworld title; anthology stories scattered around the timeline, before our main story)
-A-Force 1-5 (Warzone; must take before Siege, as America Chavez ends up on the Shield)
-Master of Kung Fu 1-4 (Battleworld; not sure if there are any chronology indicators)
-Inferno 1-5 (Warzone; must take place after SW2, as Maddie is deposed as Baron, but before SW6, as Maddie is Baron once more)
-X-Tinction Agenda 1-4 (Warzone)
-Infinity Gauntlet 1-5 (Warzone)
-X-Men '92 Infinite Comic 1-8 (Warzone)
-E is for Extinction 1-4 (Warzone)
-Years of Future Past 1-5 (Warzone)
-Old Man Logan 1-5 (Warzone)
-House of M 1-4 (Warzone)
-Secret Wars 2099 1-5 (Warzone)
-Marvel Zombies 1-4 (Battleworld; must take place before Siege)
-Armor Wars 1-5 (Warzone)
-1872 1-4 (Warzone)
-Weirdworld 1-4 (Warzone)
-Where Monsters Dwell 1-5 (Warzone)
-Spider-Verse 1-5 (Warzone)
-MODOK: Assassin 1-5 (Warzone)
-Giant-Size Little Marvel: AvX 1-4 (Warzone)
-Amazing Spider-Man: Renew Your Vows 1-5 (Warzone)
-Spider-Island 1-5 (Warzone)
-Captain Marvel and the Carol Corps 1-4 (Warzone)
-Hail HYDRA 1-4 (Warzone)
-Mrs. Deadpool and the Howling Commandos 1-4 (Warzone)
-Hank Johnson, Agent of HYDRA one-shot (Warzone)
-Howard the Human one-shot (Warzone)
-Secret Wars: Secret Love one-shot (Battleworld anthology)
-Secret Wars: Agents of Atlas one-shot (Warzone)
-Korvac Saga 1-4 (Warzone)
-Captain Britain and the Mighty Defenders 1-2 (Warzone)
-1602: Witch Hunter Angela 1-4 (Warzone)
-Civil War 1-5 (Warzone; if there is peace at the end of the series, then this must take place after Captain Britain)
-Planet Hulk 1-5 (Warzone; definitely after one of the SW Journal stories, which takes place prior to Greenland being devastated)
-Future Imperfect 1-4 (Warzone)
-Squadron Sinister 1-4 (Warzone)
-Secret Wars 3
-Runaways 1-4 (Warzone)
-Age of Ultron vs. Marvel Zombies 1-4 (Battleworld; should take place after 1872, as it appears Hank Pym has been away from Timely for some time; msut also take place before Siege)
-Secret Wars 4
-Inhumans: Attilan Rising 1-5 (Battleworld; presumably takes place in the middle of the series; may depend if we see either Medusa or Black Bolt as the Baron, or future references to the mind control devices)
-Ghost Racers 1-4 (Battleworld)
-Star-Lord and Kitty Pryde 1-3 (Battleworld; must take place after SW4)
-Guardians of Knowhere 1-4 (Warzone; must take place after Star-Lord and Kitty Pryde, as 616-Quill is in it)
-Thors 1-4 (Battleworld; presume after SW4, especially if 616-Thor shows up in issue 4)
-Red Skull 1-3 (Battleworld; shows negotiations between Zombies and Annihilation Wave, which pays off in Siege)
-Secret Wars 5
-Secret Wars 6
-Siege 1-4 (Battleworld; final issue is an important marker for progress among the Battleworld and Warzone titles)
-Age of Apocalypse 1-5 (Warzone; definitely set after SW6, where Apocalypse is still Baron)
-Secret Wars 7
-Secret Wars 8
-Ultimate End 1-5 (Battleworld; this one is hard to place right now, but must happen near the end, as we have life raft survivors in Manhattan, and everyone's aware of Battleworld's true nature. Presumably the mind control towers described in Inhumans are destroyed)
-Secret Wars 9