r/MilitaryWorldbuilding is a subreddit with 22k members. The community frequently discusses military, infantry, weapons, navy, and space, and the most common flair used is weapon, infantry, lore, ground vehicle, and prompt.
This subreddit is for posting worldbuilding ideas that pertain to anything and everything military. Share weapons, ships, social elements, suggestions, tips, or anything else as long as it is relevant to something militaristic in (one of) your world(s).
Popular Topics in r/MilitaryWorldbuilding
#1
Military
94 posts
#2
Infantry
20 posts
#3
Weapons
18 posts
#4
Navy
16 posts
#5
Space
15 posts
#6
Aviation
14 posts
#7
Naval
12 posts
#8
Warfare
11 posts
#9
Ships
11 posts
#10
Battleship
11 posts
Flair Used in r/MilitaryWorldbuilding
#1
Weapon
: "A bit of everything Imperial. Part two will be soon. [The War of Mist universe]"
46 posts
#2
Infantry
: "Dremarov Forces"
32 posts
#3
Lore
: "Fun fact: Poor fellow who came up with this idea was executed after this proposal was denied. [The War of Mist]"
20 posts
#4
Ground Vehicle
: "MBT-02 White Tiger"
13 posts
#5
Prompt
: "How is trench warfare conducted in your world?"
10 posts
#6
Aircraft
: "A naval VTOL fighter-attacker."
9 posts
#7
Character
: "New York Red Guardsman in Kaiserreich (1937)"
8 posts
#8
Advice
: "Ammunition is important. Don't forget about your calibres while designing your firearms and artillery. I forgot. Now I have to deal with it..."
7 posts
#9
Watercraft
: "Icarian Navy INS Yunagi"
6 posts
#10
Spacecraft
: "Tempest-class Destroyer — Solan Republic Void Navy"
6 posts
Member Growth in r/MilitaryWorldbuilding
Yearly
+14k members(185.2%)
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About
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Last updated: August 13, 2026