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Day of Defeat: Source

Game overview

Day of Defeat: Source

Valve · Jul 12, 2010

Valve's WWII Multiplayer Classic - Now available for Mac.

FPS World War II Multiplayer Action Shooter
Last tracked players
312
All-time peak
404
24-hour change
Unavailable
Steam reviews
91.7% positive
22,689 reviews · via SteamSpy

Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description
Day of Defeat offers intense online action gameplay set in Europe during WWII. Assume the role of infantry, sniper or machine-gunner classes, and more. DoD:S features enhanced graphics and sounds design to leverage the power of Source, Valve's new engine technology.
Media gallery 5 screenshots · 0 videos
Day of Defeat: Source game capsule image

Screenshots

Day of Defeat: Source screenshot 1
Day of Defeat: Source screenshot 2
Day of Defeat: Source screenshot 3
Day of Defeat: Source screenshot 4
Day of Defeat: Source screenshot 5

Player activity

Concurrent players over the last 48 hours.

Loading player history?

Latest news

All news on Steam ↗
Counter-Strike: Source and Day of Defeat: Source get major updates with 64bit support Day of Defeat: Source Update Released Day of Defeat: Source Update Released
System requirements Windows · macOS

Windows

Minimum


Minimum: 1.7 GHz Processor, 512MB RAM, DirectX® 8.1 level Graphics Card (Requires support for SSE), Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection


Recommended: Pentium 4 processor (3.0GHz, or better), 1GB RAM, DirectX® 9 level Graphics Card, Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection


macOS

Minimum

Minimum: OS X version Leopard 10.5.8, Snow Leopard 10.6.3, 1GB RAM, NVIDIA GeForce 8 or higher, ATI X1600 or higher, or Intel HD 3000 or higher Mouse, Keyboard, Internet Connection
Game details Languages, features & support
Publisher
Valve
USK rating
16
Brazilian rating
14
Steam Germany rating
16
Content warning
This game includes frequent violence.
Achievements
54
Controller support
none
Metacritic
80
Features
Multi-player, Cross-Platform Multiplayer, Steam Achievements, Steam Trading Cards, Camera Comfort, Color Alternatives, Custom Volume Controls, Adjustable Difficulty, Stereo Sound, Surround Sound, Valve Anti-Cheat enabled, Stats, Includes Source SDK, Family Sharing
Languages
English
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: supported
macOS: not-listed
Linux: supported
Steam Deck
playable
Valve compatibility test
The on-screen keyboard may need to be opened manually.
Input
Controller support: unknown

Steam feature declarations

multiplayer cross platform multiplayer family sharing

Developer-declared accessibility on Steam

Features not declared by the developer are not labeled unsupported.

color alternatives camera comfort custom volume controls stereo sound surround sound adjustable difficulty
Structured language support (1)
LanguageInterfaceFull audioSubtitles
EnglishYesNoNo
Steam Store app details fresh · checked 2026-11-04 Steam store page fresh · checked 2026-11-01 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
Achievement progress Rarity & completion patterns

Achievement Difficulty

Global unlock percentages are not exact completion or retention metrics.

Steam source
Achievements measured
54
Hunter score
81.4 / 100
SteamIQHQ inference from rarity and count
Progression analysis
Achievement rarity is available, but milestone order is not defensible.

Rarest achievements

War Hero 2.7%
Combat Engineer 3%
Knuckleduster 3.2%
Jack of All Trades 3.3%
Cutthroat 3.4%

Difficulty distribution

Ultra rare (<1%)0
Very rare (1–5%)23
Rare (5–20%)29
Uncommon (20–50%)2
Common (50%+)0
Observed Nov 08, 2026 14:14 UTC · fresh
More analysis Activity patterns, updates & developer tools

Build a competitor report

Game Insights

Buy Verdict

Wait — $9.99.

Wait for upcoming sale in ~13 days for potentially better pricing.

▬ ~13 days until next sale

Value Score

Great Value — 82th percentile.

Price-to-player ratio ranks in the 82th percentile. Priced as Market at $9.99.

▲ Market pricing tier

Genre Benchmarks

Player Count Top 18%
Value Ratio Top 18%

Activity Heatmap

UTC+0 (Your Timezone)
404
Peak Activity
228
Avg Activity
18
Active Hours
12%
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Developer Analytics

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Frequently Asked Questions

Is Day of Defeat: Source worth buying right now?
Wait — $9.99. Wait for upcoming sale in ~13 days for potentially better pricing.
When does Day of Defeat: Source go on sale?
Wait for upcoming sale in ~13 days for potentially better pricing.
Is Day of Defeat: Source free to play?
Day of Defeat: Source costs $9.99 on Steam.
What genre is Day of Defeat: Source?
Day of Defeat: Source is a Action game.
Who developed Day of Defeat: Source?
Day of Defeat: Source was developed by Valve and published by Valve.
What platforms does Day of Defeat: Source support?
Available on Steam for Windows, macOS, Linux.

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