Day of Defeat: Source
Class-based World War II FPS built around online team battles
Valve · Released Jul 12, 2010
- Reviews
- Very Positive
- 90% of 18K
- Recent reviews
- Very Positive
- 93% of 78 in 30 days
- Players
- 218
- daily peak, Nov 7, 2026
- Steam Deck
- Playable
- Last update on Steam
- 1 month ago
- Sep 16, 2026
- Minimum PC
- –
- not published
Metacritic: 80/100 (critic reviews)
What is Day of Defeat: Source?
A class-based first-person shooter set in World War II Europe. You choose roles such as infantry, sniper, or machine gunner and fight in online team matches.
For you if...
- +you enjoy teamwork, positioning, and learning multiplayer maps
- +you prefer class-based World War II gunfights
- +you want straightforward matches without progression systems
Not for you if...
- −you need a large, beginner-friendly online player base
- −you want solo play or a story campaign
- −you expect modern progression and cosmetic unlock systems
What players say
90% of 18,193 reviews are positive · 93% of 78 in the last 30 days
Players praise the straightforward, teamwork-focused combat, class roles, and maps. The most common complaint is the small population: server availability varies, matches may rely on bots, and newcomers can face highly experienced regulars.
Players over time
▼ -5% vs a month agoPlayers online on Steam, one sample a day.
Highest since Sep 2026: 270 players on Oct 17, 2026.
Show the data
| Day | Players |
|---|---|
| Nov 7, 2026 | 218 |
| Nov 6, 2026 | 199 |
| Nov 5, 2026 | 193 |
| Nov 4, 2026 | 168 |
| Nov 3, 2026 | 180 |
| Nov 2, 2026 | 207 |
| Nov 1, 2026 | 202 |
| Oct 31, 2026 | 241 |
| Oct 30, 2026 | 162 |
| Oct 29, 2026 | 171 |
| Oct 28, 2026 | 159 |
| Oct 27, 2026 | 67 |
| Oct 27, 2026 | 150 |
| Oct 26, 2026 | 181 |
| Oct 25, 2026 | 223 |
| Oct 24, 2026 | 233 |
| Oct 23, 2026 | 202 |
| Oct 22, 2026 | 0 |
| Oct 21, 2026 | 200 |
| Oct 20, 2026 | 178 |
| Oct 19, 2026 | 184 |
| Oct 18, 2026 | 212 |
| Oct 17, 2026 | 270 |
| Oct 16, 2026 | 214 |
| Oct 15, 2026 | 187 |
| Oct 14, 2026 | 196 |
| Oct 13, 2026 | 181 |
| Oct 12, 2026 | 198 |
| Oct 11, 2026 | 184 |
| Oct 10, 2026 | 251 |
| Oct 9, 2026 | 188 |
| Oct 8, 2026 | 188 |
| Oct 7, 2026 | 203 |
| Oct 6, 2026 | 201 |
| Oct 5, 2026 | 224 |
| Oct 4, 2026 | 212 |
| Oct 3, 2026 | 235 |
| Oct 2, 2026 | 200 |
| Oct 1, 2026 | 203 |
| Sep 30, 2026 | 198 |
| Sep 29, 2026 | 178 |
| Sep 28, 2026 | 196 |
| Sep 27, 2026 | 195 |
| Sep 26, 2026 | 234 |
| Sep 25, 2026 | 214 |
| Sep 24, 2026 | 219 |
| Sep 23, 2026 | 141 |
| Sep 23, 2026 | 199 |
| Sep 22, 2026 | 206 |
| Sep 21, 2026 | 234 |
Screenshots and trailer
Day of Defeat: Source system requirements
As published by the developer.
Can my PC run Day of Defeat: Source?
The published requirements do not name a graphics card we can compare.
Set up my PC →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
Does Day of Defeat: Source have co-op or multiplayer?
Yes: multiplayer (mode not specified). There is no single-player mode. Crossplay with other platforms is declared.
Does Day of Defeat: Source run on Steam Deck?
Playable Playable: it runs on Steam Deck with some adjustments.
- Default controller config not fully functional
- Sometimes shows mouse, keyboard or non-Deck controller icons
- Some text entry requires manually opening the on-screen keyboard
- Some in-game text is small and may be hard to read
- Default graphics settings perform well on Steam Deck
PC version details
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows, Linux
- Achievements
- 54
- Steam features
- Family Sharing, Trading cards
- Languages
- Text only: English.
Does Day of Defeat: Source use AI-generated content?
No AI-generated content is disclosed on the game's Steam page.
Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 6, 2026. How to filter AI games on Steam
Tags
- FPS
- World War II
- Multiplayer
- Action
- Shooter
- War
- Military
- Team-Based
- First-Person
- Historical
- Class-Based
- Classic
- Tactical
- Realistic
- Online Co-Op
- Gore
Recent updates
- Sep 16, 2026 · Day of Defeat: Source Update Released
- Aug 24, 2026 · Day of Defeat: Source Update Released
- Feb 18, 2025 · Day of Defeat: Source Update Released
- Jul 2, 2021 · Day of Defeat: Source Update Released