IMHO.

Games like Day of Defeat: Source

If Day of Defeat: Source is your kind of game, the closest matches are Day of Defeat, Counter-Strike: Source and Rising Storm Game of the Year Edition — picked from the ranked list below. Reviewers single out its nostalgic source engine charm, competitive and nostalgic. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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Day of Defeat: Source is a World War II multiplayer first-person shooter developed and published by Valve, released in 2010 at $9.99 USD and playable on Steam Deck. The game emphasizes class-based combat where tactical positioning and map control drive match outcomes, with weapon recoil adding mechanical weight to encounters. Players describe the gunplay as punchy and the gameplay loop as simple but deep, while reviewers highlight that class roles matter more than individual skill in achieving team objectives. Set across historically inspired battlefields, the experience carries a competitive tension that long-standing fans find nostalgic. The title holds a 91% positive rating from more than 7,400 Steam reviews.

About Day of Defeat: Source: Valve's WWII Multiplayer Classic - Now available for Mac.

2010Action9.99 USDDeck PlayableMetacritic 80Windows · Linuxby Valve
Day of Defeat: Source — Steam game cover
Players highlight
Class roles matter more than individual skillGunplay feels punchy and weightyNostalgic source engine charmCompetitiveNostalgicRetro

Players who liked Day of Defeat: Source also play

Steam players who put hours into Day of Defeat: Source also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Day of Defeat

    WHY THIS

    Shares a nostalgic mood with Day of Defeat: Source.

    Top pick for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Enlist in an intense brand of Axis vs. Allied teamplay set in the WWII European Theatre of Operations. Players assume the role of light/assault/heavy infantry, sniper or machine-gunner class, each with a unique arsenal of historical weaponry at their disposal. Missions are based on key historical operations.

    2003Action4.99 USDDeck PlayableSteam ↗
  2. Counter-Strike: Source

    WHY THIS

    Shares tactical positioning and a competitive mood with Day of Defeat: Source.

    Second-strongest match for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.

    2004Action9.99 USDDeck PlayableSteam ↗
  3. Rising Storm Game of the Year Edition

    WHY THIS

    Third-strongest match for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Also contains all multi-player content from Red Orchestra 2: Heroes of Stalingrad

    2013Action19.99 USDSteam ↗
  4. Red Orchestra 2: Heroes of Stalingrad with Rising Storm

    WHY THIS

    Shares a tense mood with Day of Defeat: Source.

    Ranked #4 for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Contains full Rising Storm content as well!

    2011ActionSimulationMassively Multiplayer19.99 USDDeck PlayableSteam ↗
  5. Counter-Strike 2

    WHY THIS

    Ranked #5 for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  6. Day of Infamy

    WHY THIS

    Ranked #6 for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Experience close-quarters battles in iconic WWII settings. Defend the line, storm the beach, torch the enemy, or use a radio to call in fire support. Day of Infamy is a teamwork-oriented shooter that will keep you on your toes and coming back for more with its diverse game modes and authentic arsenal.

    2017ActionStrategyIndie14.99 USDDeck PlayableSteam ↗
  7. Isonzo

    WHY THIS

    Ranked #7 for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Ferocious Alpine warfare will test your tactical skills in this authentic WW1 FPS. Battle among the scenic peaks, rugged valleys and idyllic towns of northern Italy. The Great War on the Italian Front is brought to life and elevated to unexpected heights!

    2022ActionStrategyIndie9.89 USDDeck PlayableSteam ↗
  8. Hell Let Loose

    WHY THIS

    Shares a tense mood with Day of Defeat: Source.

    Ranked #8 for Day of Defeat: Source fans by collaborative filtering across millions of Steam libraries. Shares Action with Day of Defeat: Source.

    Join the ever expanding experience of Hell Let Loose - a hardcore World War Two first person shooter with epic battles of 100 players with infantry, tanks, artillery, a dynamically shifting front line and a unique resource based RTS-inspired meta-game.

    2021ActionStrategyIndie49.99 USDDeck PlayableSteam ↗

Reviewers mention these as similar to Day of Defeat: Source

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. Team Fortress 2

    WHY THIS

    Shares a competitive mood with Day of Defeat: Source.

    Reviewers of Day of Defeat: Source cross-mention this title as a similar play. Shares Action with Day of Defeat: Source.

    Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats!

    2007ActionFree To PlayFreeDeck PlayableSteam ↗
  2. Counter-Strike: Source

    WHY THIS

    Shares tactical positioning and a competitive mood with Day of Defeat: Source.

    Reviewers of Day of Defeat: Source cross-mention this title as a similar play. Shares Action with Day of Defeat: Source.

    Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.

    2004Action9.99 USDDeck PlayableSteam ↗
  3. Quake Champions

    WHY THIS

    Shares a competitive mood with Day of Defeat: Source.

    Reviewers of Day of Defeat: Source cross-mention this title as a similar play. Shares Action with Day of Defeat: Source.

    Step into the Arena. Compete against players from around the world in this fast-paced shooter that combines the dark mythos of the original Quake with the skill-based competition of Quake III Arena. Become a Champion.

    2022ActionFree To PlayFreeDeck PlayableSteam ↗
  4. Call of Duty®

    WHY THIS

    Shares a tense mood with Day of Defeat: Source.

    Reviewers of Day of Defeat: Source cross-mention this title as a similar play. Shares Action with Day of Defeat: Source.

    The Call of Duty® experience supports Call of Duty®: Black Ops 7, Call of Duty®: Black Ops 6, and Call of Duty®: Warzone™.

    2022ActionSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Day of Defeat: Source at current Steam store prices.

  1. Vampire Survivors

    WHY THIS

    Priced ~50% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  2. Titanfall® 2

    WHY THIS

    Priced ~55% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.

    2020Action4.49 USDDeck PlayableSteam ↗
  3. POSTAL 2

    WHY THIS

    Priced ~90% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  4. Buckshot Roulette

    WHY THIS

    Priced ~70% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  5. Brotato

    WHY THIS

    Priced ~50% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

    2023ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  6. Your Only Move Is HUSTLE

    WHY THIS

    Priced ~50% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Master your technique, execute flashy combos, and outsmart opponents across the world, frame-by-frame. Slow down the clock to fine-tune your fighting style in this innovative, turn-based combat simulator. Pulverize your friends and choreograph spectacular fight scenes. No training mode required.

    2023ActionStrategyIndie4.99 USDDeck PlayableSteam ↗
  7. Blood and Bacon

    WHY THIS

    Priced ~90% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.

    2016ActionAdventureCasual0.99 USDSteam ↗
  8. Half-Life: Opposing Force

    WHY THIS

    Priced ~50% under Day of Defeat: Source on Steam right now. Shares Action with Day of Defeat: Source.

    Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.

    1999Action4.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Day of Defeat: Source.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  2. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Day of Defeat: Source.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  3. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Day of Defeat: Source.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  4. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Day of Defeat: Source.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  5. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Day of Defeat: Source.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  6. The Lab

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

    2016Free To PlayFreeSteam ↗
  7. 93, Kuindzhi

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.

    2026IndieAdventureFree To PlayFreeSteam ↗
  8. Landfall Archives

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Day of Defeat: Source.

    Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!

    2023ActionStrategyIndieFreeSteam ↗

More from Valve

Other recommendable Steam games by Valve, ranked by review count so the studio's hits land first.

  1. Counter-Strike 2

    WHY THIS

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  2. Left 4 Dead 2

    WHY THIS

    Shares a tense mood with Day of Defeat: Source.

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.

    2009Action9.99 USDDeck VerifiedSteam ↗
  3. Portal 2

    WHY THIS

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

    2011ActionAdventure9.99 USDDeck VerifiedSteam ↗
  4. Half-Life 2

    WHY THIS

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.

    2004Action9.99 USDDeck VerifiedSteam ↗
  5. Portal

    WHY THIS

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.

    2007Action9.99 USDDeck VerifiedSteam ↗
  6. Counter-Strike

    WHY THIS

    Shares tactical positioning and a competitive mood with Day of Defeat: Source.

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions. Take out enemy sites. Rescue hostages. Your role affects your team's success. Your team's success affects your role.

    2000Action9.99 USDDeck PlayableSteam ↗
  7. Counter-Strike: Source

    WHY THIS

    Shares tactical positioning and a competitive mood with Day of Defeat: Source.

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.

    2004Action9.99 USDDeck PlayableSteam ↗
  8. Half-Life

    WHY THIS

    Another title from Valve, the studio behind Day of Defeat: Source. Shares Action with Day of Defeat: Source.

    Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.

    1998Action9.99 USDDeck VerifiedSteam ↗

Frequently asked about Day of Defeat: Source

Does Day of Defeat: Source run on Steam Deck?
Day of Defeat: Source is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Day of Defeat: Source cost?
Day of Defeat: Source is listed on Steam at 9.99 USD (current store price; Steam sales may reduce this temporarily).
Does Day of Defeat: Source have multiplayer or co-op?
Yes — Day of Defeat: Source supports multi-player play according to its Steam store listing (Multi-player, Cross-Platform Multiplayer).
What games are most similar to Day of Defeat: Source?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Day of Defeat: Source are Day of Defeat, Counter-Strike: Source, Rising Storm Game of the Year Edition.
Who developed Day of Defeat: Source?
Day of Defeat: Source was developed by Valve.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Day of Defeat: Source.

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