The Game Census
Day of Defeat: Source cover art

Day of Defeat: Source

Valve · 2010-07-12

Steam

Action

Modes: Multiplayer · Perspectives: First person

Releases: Mar 14, 2013 (Linux), Sep 26, 2005 (PC (Microsoft Windows)), Jul 12, 2010 (Mac)

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

Day of Defeat: Source is an Action game released in 2010, priced at $9.99, with an estimated 2,000,000 to 5,000,000 owners and a Very Positive review sentiment (92% of 23,642 reviews).

135
playing now
92%
positive of 24k reviews
Very Positive
steam's rating (official)
2,000,000–5,000,000
owners (SteamSpy est.)
85/100
critic score (2 outlets, IGDB)
71/100
IGDB user rating (76 ratings)
2
Nexus mods (2.6k downloads)
2h
to beat · rushed 1h · completionist 2h
platinum
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$9.99
steam price (US)

135 players in-game as of 2026-10-14 10:00 UTC (census sample)

Day of Defeat: Source is a team-based online first-person shooter multiplayer video game developed by Valve. Set in World War II, the game is a remake of Day of Defeat. It was updated from the GoldSrc engine used by its predecessor to the Source engine, and a remake of the game models. The game was released for Microsoft Windows on September 26, 2005, distributed through Valve's online content delivery service Steam. Retail distribution of the game was handled by Electronic Arts.

Trailer

Day of Defeat: Source trailer thumbnail

Day Of Defeat: Source Trailer HD

≈445,866 YouTube results for this game's trailer search

Health check

Healthy
  • · 135 players in-game at the last census sample.
  • · 646 reviews in the last 8 weeks (~81/week).
  • · Review velocity up 4% vs the prior 8 weeks.
  • · Top 3% of 27,649 Action games in the census by review count.
Estimated sales: 947k–1.9M copies

Review-multiple estimate from 23,687 total reviews — how this is computed.

Current store prices

Steam$1.99-80%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $0.99 at Steam (2017-11-22)via IsThereAnyDeal

12-month high $9.99 · on sale 8 of 11 observed days (census price snapshots)

Review momentum

PositiveNegative
28328320182026Week of 2018-01-01: 152 positiveWeek of 2018-01-01: 32 negativeWeek of 2018-02-01: 107 positiveWeek of 2018-02-01: 10 negativeWeek of 2018-03-01: 87 positiveWeek of 2018-03-01: 15 negativeWeek of 2018-04-01: 58 positiveWeek of 2018-04-01: 4 negativeWeek of 2018-05-01: 52 positiveWeek of 2018-05-01: 12 negativeWeek of 2018-06-01: 109 positiveWeek of 2018-06-01: 28 negativeWeek of 2018-07-01: 112 positiveWeek of 2018-07-01: 30 negativeWeek of 2018-08-01: 58 positiveWeek of 2018-08-01: 11 negativeWeek of 2018-09-01: 48 positiveWeek of 2018-09-01: 6 negativeWeek of 2018-10-01: 39 positiveWeek of 2018-10-01: 7 negativeWeek of 2018-11-01: 126 positiveWeek of 2018-11-01: 8 negativeWeek of 2018-12-01: 78 positiveWeek of 2018-12-01: 12 negativeWeek of 2019-01-01: 70 positiveWeek of 2019-01-01: 15 negativeWeek of 2019-02-01: 72 positiveWeek of 2019-02-01: 11 negativeWeek of 2019-03-01: 52 positiveWeek of 2019-03-01: 12 negativeWeek of 2019-04-01: 35 positiveWeek of 2019-04-01: 8 negativeWeek of 2019-05-01: 57 positiveWeek of 2019-05-01: 4 negativeWeek of 2019-06-01: 221 positiveWeek of 2019-06-01: 16 negativeWeek of 2019-07-01: 283 positiveWeek of 2019-07-01: 53 negativeWeek of 2019-08-01: 48 positiveWeek of 2019-08-01: 10 negativeWeek of 2019-09-01: 43 positiveWeek of 2019-09-01: 7 negativeWeek of 2019-10-01: 66 positiveWeek of 2019-10-01: 10 negativeWeek of 2019-11-01: 204 positiveWeek of 2019-11-01: 12 negativeWeek of 2019-12-01: 164 positiveWeek of 2019-12-01: 11 negativeWeek of 2020-01-01: 144 positiveWeek of 2020-01-01: 7 negativeWeek of 2020-02-01: 111 positiveWeek of 2020-02-01: 7 negativeWeek of 2020-03-01: 121 positiveWeek of 2020-03-01: 12 negativeWeek of 2020-04-01: 152 positiveWeek of 2020-04-01: 17 negativeWeek of 2020-05-01: 123 positiveWeek of 2020-05-01: 12 negativeWeek of 2020-06-01: 136 positiveWeek of 2020-06-01: 11 negativeWeek of 2020-07-01: 174 positiveWeek of 2020-07-01: 20 negativeWeek of 2020-08-01: 100 positiveWeek of 2020-08-01: 7 negativeWeek of 2020-09-01: 77 positiveWeek of 2020-09-01: 5 negativeWeek of 2020-10-01: 95 positiveWeek of 2020-10-01: 5 negativeWeek of 2020-11-01: 155 positiveWeek of 2020-11-01: 10 negativeWeek of 2020-12-01: 193 positiveWeek of 2020-12-01: 19 negativeWeek of 2021-01-01: 167 positiveWeek of 2021-01-01: 10 negativeWeek of 2021-02-01: 100 positiveWeek of 2021-02-01: 10 negativeWeek of 2021-03-01: 102 positiveWeek of 2021-03-01: 10 negativeWeek of 2021-04-01: 111 positiveWeek of 2021-04-01: 11 negativeWeek of 2021-05-01: 101 positiveWeek of 2021-05-01: 7 negativeWeek of 2021-06-01: 126 positiveWeek of 2021-06-01: 22 negativeWeek of 2021-07-01: 202 positiveWeek of 2021-07-01: 23 negativeWeek of 2021-08-01: 125 positiveWeek of 2021-08-01: 18 negativeWeek of 2021-09-01: 93 positiveWeek of 2021-09-01: 5 negativeWeek of 2021-10-01: 79 positiveWeek of 2021-10-01: 4 negativeWeek of 2021-11-01: 122 positiveWeek of 2021-11-01: 15 negativeWeek of 2021-12-01: 178 positiveWeek of 2021-12-01: 20 negativeWeek of 2022-01-01: 190 positiveWeek of 2022-01-01: 15 negativeWeek of 2022-02-01: 141 positiveWeek of 2022-02-01: 14 negativeWeek of 2022-03-01: 112 positiveWeek of 2022-03-01: 11 negativeWeek of 2022-04-01: 66 positiveWeek of 2022-04-01: 2 negativeWeek of 2022-05-01: 93 positiveWeek of 2022-05-01: 8 negativeWeek of 2022-06-01: 102 positiveWeek of 2022-06-01: 10 negativeWeek of 2022-07-01: 154 positiveWeek of 2022-07-01: 23 negativeWeek of 2022-08-01: 108 positiveWeek of 2022-08-01: 9 negativeWeek of 2022-09-01: 70 positiveWeek of 2022-09-01: 7 negativeWeek of 2022-10-01: 72 positiveWeek of 2022-10-01: 7 negativeWeek of 2022-11-01: 188 positiveWeek of 2022-11-01: 7 negativeWeek of 2022-12-01: 220 positiveWeek of 2022-12-01: 25 negativeWeek of 2023-01-01: 242 positiveWeek of 2023-01-01: 13 negativeWeek of 2023-02-01: 124 positiveWeek of 2023-02-01: 14 negativeWeek of 2023-03-01: 171 positiveWeek of 2023-03-01: 18 negativeWeek of 2023-04-01: 117 positiveWeek of 2023-04-01: 11 negativeWeek of 2023-05-01: 109 positiveWeek of 2023-05-01: 7 negativeWeek of 2023-06-01: 111 positiveWeek of 2023-06-01: 12 negativeWeek of 2023-07-01: 246 positiveWeek of 2023-07-01: 17 negativeWeek of 2023-08-01: 147 positiveWeek of 2023-08-01: 13 negativeWeek of 2023-09-01: 212 positiveWeek of 2023-09-01: 24 negativeWeek of 2023-10-01: 147 positiveWeek of 2023-10-01: 10 negativeWeek of 2023-11-01: 172 positiveWeek of 2023-11-01: 15 negativeWeek of 2023-12-01: 166 positiveWeek of 2023-12-01: 21 negativeWeek of 2024-01-01: 175 positiveWeek of 2024-01-01: 14 negativeWeek of 2024-02-01: 111 positiveWeek of 2024-02-01: 10 negativeWeek of 2024-03-01: 157 positiveWeek of 2024-03-01: 9 negativeWeek of 2024-04-01: 88 positiveWeek of 2024-04-01: 11 negativeWeek of 2024-05-01: 101 positiveWeek of 2024-05-01: 6 negativeWeek of 2024-06-01: 99 positiveWeek of 2024-06-01: 16 negativeWeek of 2024-07-01: 158 positiveWeek of 2024-07-01: 11 negativeWeek of 2024-08-01: 107 positiveWeek of 2024-08-01: 10 negativeWeek of 2024-09-01: 71 positiveWeek of 2024-09-01: 5 negativeWeek of 2024-10-01: 67 positiveWeek of 2024-10-01: 6 negativeWeek of 2024-11-01: 75 positiveWeek of 2024-11-01: 4 negativeWeek of 2024-12-01: 128 positiveWeek of 2024-12-01: 19 negativeWeek of 2025-01-01: 102 positiveWeek of 2025-01-01: 17 negativeWeek of 2025-02-01: 90 positiveWeek of 2025-02-01: 12 negativeWeek of 2025-03-01: 85 positiveWeek of 2025-03-01: 8 negativeWeek of 2025-04-01: 56 positiveWeek of 2025-04-01: 5 negativeWeek of 2025-05-01: 57 positiveWeek of 2025-05-01: 7 negativeWeek of 2025-06-01: 65 positiveWeek of 2025-06-01: 10 negativeWeek of 2025-07-01: 114 positiveWeek of 2025-07-01: 12 negativeWeek of 2025-08-01: 64 positiveWeek of 2025-08-01: 9 negativeWeek of 2025-09-01: 57 positiveWeek of 2025-09-01: 5 negativeWeek of 2025-10-01: 87 positiveWeek of 2025-10-01: 7 negativeWeek of 2025-11-01: 58 positiveWeek of 2025-11-01: 6 negativeWeek of 2025-12-01: 82 positiveWeek of 2025-12-01: 7 negativeWeek of 2026-01-01: 107 positiveWeek of 2026-01-01: 10 negativeWeek of 2026-02-01: 64 positiveWeek of 2026-02-01: 4 negativeWeek of 2026-03-01: 78 positiveWeek of 2026-03-01: 11 negativeWeek of 2026-04-01: 62 positiveWeek of 2026-04-01: 9 negativeWeek of 2026-05-01: 51 positiveWeek of 2026-05-01: 3 negativeWeek of 2026-06-01: 59 positiveWeek of 2026-06-01: 6 negativeWeek of 2026-07-01: 86 positiveWeek of 2026-07-01: 7 negativeWeek of 2026-08-01: 48 positiveWeek of 2026-08-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

441872026-09-15 11:00 — 180 players2026-09-16 20:00 — 359 players2026-09-18 03:00 — 140 players2026-09-19 11:00 — 201 players2026-09-20 18:00 — 441 players2026-09-22 02:00 — 157 players2026-09-23 09:00 — 145 players2026-09-24 17:00 — 333 players2026-09-26 00:00 — 239 players2026-09-27 08:00 — 123 players2026-09-28 15:00 — 294 players2026-09-29 23:00 — 211 players2026-10-01 06:00 — 87 players2026-10-02 14:00 — 209 players2026-10-03 22:00 — 310 players2026-10-05 06:00 — 118 players2026-10-06 13:00 — 182 players2026-10-07 21:00 — 310 players2026-10-09 04:00 — 116 players2026-10-10 12:00 — 242 players2026-10-11 19:00 — 407 players2026-10-13 03:00 — 148 players2026-10-14 10:00 — 135 players
Concurrent players, hourly average, last 30 days (census samples).
1.4k216Jul 2012Aug 2026Jul 2012 — avg 1,376 · peak 2,830Dec 2012 — avg 1,237 · peak 2,655May 2013 — avg 1,035 · peak 2,288Oct 2013 — avg 946 · peak 2,059Mar 2014 — avg 905 · peak 1,912Aug 2014 — avg 796 · peak 1,595Jan 2015 — avg 909 · peak 1,956Jun 2015 — avg 734 · peak 1,576Nov 2015 — avg 734 · peak 1,654Apr 2016 — avg 698 · peak 1,464Sep 2016 — avg 584 · peak 1,216Feb 2017 — avg 653 · peak 1,352Jul 2017 — avg 558 · peak 1,163Dec 2017 — avg 597 · peak 1,317May 2018 — avg 428 · peak 935Oct 2018 — avg 390 · peak 819Mar 2019 — avg 409 · peak 857Aug 2019 — avg 389 · peak 720Jan 2020 — avg 408 · peak 859Jun 2020 — avg 434 · peak 861Nov 2020 — avg 434 · peak 910Apr 2021 — avg 406 · peak 873Sep 2021 — avg 325 · peak 630Feb 2022 — avg 382 · peak 780Jul 2022 — avg 299 · peak 568Dec 2022 — avg 360 · peak 769May 2023 — avg 283 · peak 614Oct 2023 — avg 308 · peak 654Mar 2024 — avg 319 · peak 740Aug 2024 — avg 267 · peak 557Jan 2025 — avg 304 · peak 643Jun 2025 — avg 229 · peak 503Nov 2025 — avg 252 · peak 482Apr 2026 — avg 243 · peak 526Aug 2026 — avg 221 · peak 439
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Chart history

PositiveNegative
882026-09-222026-10-132026-09-22: 2 new positive2026-09-28: 1 new positive2026-09-29: 1 new positive2026-10-01: 2 new positive2026-10-03: 7 new positive2026-10-05: 8 new positive2026-10-05: 2 new negative2026-10-07: 4 new positive2026-10-09: 7 new positive2026-10-09: 1 new negative2026-10-11: 6 new positive2026-10-13: 3 new positive2026-10-13: 1 new negative
New Steam reviews per day (census review snapshots). Positive above the line, negative below.

Price history

$9.99$0.992015-01-012026-10-072015-01-01 — best price $4.992015-06-22 — best price $9.992015-07-21 — best price $2.492015-12-01 — best price $9.992016-02-05 — best price $2.492016-03-25 — best price $9.992016-06-23 — best price $2.492016-08-01 — best price $9.192016-11-29 — best price $9.992017-06-22 — best price $1.992017-11-28 — best price $9.992018-02-15 — best price $0.992018-07-05 — best price $9.992018-12-21 — best price $1.992019-02-12 — best price $9.992020-06-25 — best price $1.992020-12-01 — best price $9.992021-06-24 — best price $1.992021-12-01 — best price $9.992022-01-27 — best price $1.992022-07-07 — best price $9.992022-12-22 — best price $0.992023-03-23 — best price $9.992023-09-12 — best price $0.992023-11-28 — best price $9.992024-02-29 — best price $4.992024-03-21 — best price $9.992024-11-27 — best price $1.992025-01-02 — best price $9.992025-06-26 — best price $1.992025-10-06 — best price $9.992026-03-19 — best price $1.992026-07-09 — best price $9.992026-10-05 — best price $1.992026-10-07 — best price $1.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

70262026-05-29 — 58 pageviews2026-06-02 — 39 pageviews2026-06-06 — 48 pageviews2026-06-10 — 47 pageviews2026-06-14 — 43 pageviews2026-06-18 — 30 pageviews2026-06-22 — 43 pageviews2026-06-26 — 56 pageviews2026-06-30 — 65 pageviews2026-07-04 — 26 pageviews2026-07-08 — 50 pageviews2026-07-12 — 29 pageviews2026-07-16 — 37 pageviews2026-07-20 — 38 pageviews2026-07-24 — 45 pageviews2026-07-28 — 46 pageviews2026-08-01 — 42 pageviews2026-08-05 — 48 pageviews2026-08-09 — 31 pageviews2026-08-13 — 42 pageviews2026-08-17 — 35 pageviews2026-08-21 — 42 pageviews2026-08-25 — 59 pageviews2026-08-29 — 33 pageviews2026-09-02 — 30 pageviews2026-09-06 — 57 pageviews2026-09-10 — 48 pageviews2026-09-14 — 59 pageviews2026-09-18 — 70 pageviews2026-09-22 — 56 pageviews2026-09-26 — 38 pageviews2026-09-30 — 42 pageviews2026-10-04 — 47 pageviews2026-10-07 — 50 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Twitch viewers

302026-10-01 23:34 — 0 viewers2026-10-02 02:34 — 0 viewers2026-10-02 05:34 — 0 viewers2026-10-02 08:34 — 0 viewers2026-10-02 11:34 — 0 viewers2026-10-03 22:34 — 0 viewers2026-10-04 01:34 — 0 viewers2026-10-04 04:34 — 0 viewers2026-10-04 07:34 — 0 viewers2026-10-04 10:34 — 0 viewers2026-10-04 13:34 — 0 viewers2026-10-06 00:34 — 0 viewers2026-10-06 03:34 — 3 viewers2026-10-06 06:34 — 0 viewers2026-10-06 09:34 — 0 viewers2026-10-06 12:34 — 0 viewers2026-10-07 22:34 — 0 viewers2026-10-08 01:34 — 0 viewers2026-10-08 04:34 — 0 viewers2026-10-08 07:34 — 0 viewers2026-10-08 10:34 — 0 viewers2026-10-09 20:35 — 0 viewers2026-10-09 23:35 — 0 viewers2026-10-10 02:34 — 0 viewers2026-10-10 05:34 — 0 viewers2026-10-10 08:34 — 0 viewers2026-10-10 11:34 — 0 viewers2026-10-11 22:34 — 0 viewers2026-10-12 01:34 — 0 viewers2026-10-12 04:34 — 0 viewers2026-10-12 07:34 — 0 viewers2026-10-12 10:34 — 0 viewers2026-10-13 20:34 — 1 viewers2026-10-13 23:34 — 0 viewers2026-10-14 02:34 — 0 viewers2026-10-14 05:34 — 0 viewers2026-10-14 08:34 — 0 viewers2026-10-14 10:34 — 0 viewers
Hourly Twitch viewers (census snapshots).

Completion

54
achievements tracked
24.2%
earned "AWOL"
5.3%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsLinuxMulti-playerCross-Platform MultiplayerSteam AchievementsSteam Trading CardsCamera ComfortColor AlternativesCustom Volume ControlsAdjustable DifficultyStereo SoundSurround Sound

1 supported languages: English

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)43,9944%54

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

Player tags

FPSWarActionClassicShooterMilitaryTacticalRealisticHistoricalTeam-Based

Census log

Computed from census-recorded observations only — dates are observation dates.

Recent updates

Players also track

Counter-StrikeDay of DefeatAarklash: LegacyEnemy FrontGET EVENZigguratPaladins®

Similarity via IGDB.

Official site ↗Wikipedia ↗Reddit ↗