How many people are playing DEFCON right now?

DEFCON has 8 players on Steam right now, with a 24-hour peak of 17 and an all-time peak of 358 on Dec 2012.

What is the all-time peak player count of DEFCON?

358 concurrent players on Dec 2012.

When was DEFCON released on Steam?

DEFCON was released on Steam on 29 Sep 2006.

Depot ID	Name	Platform	Language	Size on disk	Download size	Current manifest	Status
1521	—	Windows	—	130 MB	124 MB	—

DEFCON

GameApp ID 1,520by Introversion SoftwareReleased 29 Sep 2006

Playing now

8

All-time peak

358

15:49 UTC · 13 Nov 2026steampeaks.com

App ID1,520

Release date29 Sep 2006

Engine—

Install size414 MB

TypeGame

Last update18 Sep 2026

Steam DeckPlayable

DLC0

DeveloperIntroversion Software

Changenumber40,912,629

Price$8.99

Packages3

PublisherIntroversion Software

SystemsWindows · macOS · Linux

Followers5,681

Depots3

Compare this game

DEFCON

Introversion Software
Released 29 Sep 2006·App 1520

Steam user reviews

Very Positive

87.4%· 4.4K reviews

Recent Very Positive · 90%

SteamPeaks Rating

85.8 Very positive

Recent 30 days 78.6

How it works

Playing now

8

+1 vs. yesterday

2.2%of peak

All-time peak

358

Dec 2012

Depots

Every depot recorded for this app, sized by its current public manifest.

Export

Depot ID	Name	Platform	Language	Size on disk	Download size	Current manifest	Status
1521	—	Windows	—	130 MB	124 MB	—

Windows · macOS · Linux

Engine —

View on SteamSteamCompare

SteamPeaks.com

3 depots · 414 MB on disk · sizes from the public manifestsView update history