r/MilitaryWorldbuilding is a subreddit with 21k members. The community frequently discusses military, infantry, weapons, navy, and space, and the most common flair used is weapon, infantry, ground vehicle, lore, and equipment.
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
: "Anybody know why the front of this P90 is like this? (FHR-40 from CoD Infinite Warfare)"
73 posts
#2
Infantry
: "Imperial Lance Corporal [The War of Mist universe]"
28 posts
#3
Ground Vehicle
: "U.S. Military Mutineers - Task Force Liberty - 2025 U.S. Occupation of Canada Faction Concept Art"
24 posts
#4
Lore
: "Veldran Army Infantry Squad"
19 posts
#5
Equipment
: "Some random scraps I found while cleaning my old room in my parents house"
11 posts
#6
Aircraft
: "Karchuw-Tawk Cargo Plane, my first "serious" aircraft design"
8 posts
#7
Advice
: "Peak or noncredible?"
6 posts
#8
Meta
: "Realistic this, realistic that, we had a triple barrel bull-pup AK in our world."
3 posts
#9
HALP!
: "I have no idea how this subreddit works, but I'd like some advice on creating my first weapon."
3 posts
#10
Watercraft
: "Why, I love river patrol boats that are literally a tank hull on a boat, how could you tell?"
2 posts
Member Growth in r/MilitaryWorldbuilding
Yearly
+14k members(214.9%)
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About
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Last updated: June 14, 2026