Sector directoryA3
Arma 3
Established realism formations and long-cycle campaigns
The deepest roster of veteran communities, doctrine-heavy units, and persistent operations.
172 indexed communities
Game directory
The milsim games worth your time, ranked by where the players are.
Not every game with 'milsim' in the marketing has an active ecosystem worth joining. This page tracks which military-simulation games on MilSim.io have the deepest community coverage, so you can pick a game where you'll actually find a unit to play with.
Coverage matters more than features
A game with deep mod support and a small playerbase is a worse bet for finding a unit than a more accessible game with hundreds of active communities. The rankings here are driven by community count and activity, not feature checklists.
Pick by ecosystem, not by trailer
If you want the deepest unit pool, Arma 3 and Arma Reforger lead. If you want air-task-order-focused milsim with squadron culture, DCS. If you want larger-team infantry combat with easier onboarding, Squad. Each game page lists the active communities for that title.
MilSim.io // Game Directory
Choose your theatre.
Browse the core milsim ecosystems supported by MilSim.io. Each sector gives communities a clearer discovery surface, stronger visibility, and a path into C2 and Rank.
- Supported sectors
- 05
- Communities indexed
- 280
- Directory status
- Live
Available theatres
Explore the MilSim sectors currently indexed on the platform.
Sector directoryAR
Arma Reforger
Next-wave units forming around a cleaner tactical sandbox
Fast-growing communities experimenting with structure, accessibility, and cross-platform growth.
94 indexed communities
Sector directoryDCS
DCS
Air tasking, squadron culture, and mission-planning depth
A discovery lane for serious virtual aviation groups, fixed-wing detachments, and multi-flight ops.
6 indexed communities
Sector directorySQD
Squad
Disciplined infantry communities with broader entry
Structured teamwork and milsim-adjacent groups for players moving toward more organised play.
7 indexed communities
Sector directoryAIR
Airsoft
Structured discovery for active milsim ecosystems
Track active communities, premium placements, and game-specific discovery from a clearer landing surface.
1 indexed communities
Featured communities
Featured communities active across the supported sectors.
Deploy on MilSim.io
Place your community in the right sector.
Register your public listing, improve discoverability with Rank, and operate your organisation with C2 from a platform designed around milsim community workflows.