r/MilitaryWorldbuilding is a subreddit with 25k members. The community frequently discusses military, infantry, weapons, navy, and space, and the most common flair used is weapon, lore, infantry, equipment, 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
: "Concept for a NCR (Conscript) Infantry Squad and Service Rifle from Fallout"
20 posts
#2
Lore
: "1960s North Japanese Army Dress Uniform"
17 posts
#3
Infantry
: ""There's no place to retreat. The [Eternal] City is behind us!" - General Aures Hadriane, 20 minutes before his last attack. Structure of the Eternian Light Infantry Squad. [The War of Mist]"
8 posts
#4
Equipment
: "Urrgygstazz Z21 "Zaoshgy" Steel Helmet"
6 posts
#5
Prompt
: "What's something that's normalised in your military, but would make a modern-day soldier completely horrified?"
6 posts
#6
Advice
: "how to show the day to day of a military?"
6 posts
#7
HALP!
: "why do guns need rails to look like rails?"
5 posts
#8
Ground Vehicle
: "Battletank - metal monster of post-english wastelands"
5 posts
#9
Watercraft
: "Almaz-II Class Light Cruiser (My first pixel ship drawing)"
3 posts
#10
Aircraft
: "The HU-4 ‘Air Warden’ Troop Transport Helicopter"
3 posts
Member Growth in r/MilitaryWorldbuilding
Yearly
+16k members(187.9%)
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About
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Last updated: October 22, 2026