Day of Defeat: Source
Class-based World War II FPS built around online team battles
Valve · Released Jul 12, 2010
- Reviews
- Very Positive
- 92% of 24K
- Recent reviews
- Very Positive
- 90% of 61 in 30 days
- Playing now
- 141
- peak 24h 199
- Steam Deck
- Playable
- Last update
- 6 days ago
- Sep 16, 2026
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
92% of 23,641 reviews are positive · 90% of 61 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.
Screenshots and trailer
Day of Defeat: Source system requirements
As published by the developer.
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
PC version details
DRM, required accounts, controller support and Steam features.
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows, Linux
- Achievements
- 54
- Steam features
- Family Sharing, Trading cards
Steam Deck: Playable
- 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
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
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