Call of Duty has been running for more than two decades, and the naming scheme has become so tangled that even long-time fans lose track of which game came when. The short answer is that there are two useful ways to line the series up: the order the games were released, and the order the stories actually happen. This guide lays out both, then tells you which entries are still worth playing today.
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Cod Games in Order: The Quick Answer
In release order, the mainline Call of Duty games run: Call of Duty (2003), Call of Duty 2 (2005), Call of Duty 3 (2006), Call of Duty 4: Modern Warfare (2007), World at War (2008), Modern Warfare 2 (2009), Black Ops (2010), Modern Warfare 3 (2011), Black Ops II (2012), Ghosts (2013), Advanced Warfare (2014), Black Ops III (2015), Infinite Warfare (2016), WWII (2017), Black Ops 4 (2018), Modern Warfare (2019 reboot), Black Ops Cold War (2020), Vanguard (2021), Modern Warfare II (2022), Modern Warfare III (2023), Black Ops 6 (2024) and Black Ops 7 (2025). Free-to-play Warzone arrived in 2020 and now acts as a permanent hub that folds in content from each new release.
| Game | Platform | Genre | Why It’s Great | Rating |
|---|---|---|---|---|
| Call of Duty 4: Modern Warfare | PC, Xbox, PlayStation | Military FPS | The entry that reinvented the series and modern multiplayer progression | 9.8/10 |
| Call of Duty: World at War | PC, Xbox, PlayStation, Wii | WWII FPS | Brutal Pacific and Eastern Front campaign, plus the first Zombies mode | 9.0/10 |
| Modern Warfare 2 (2009) | PC, Xbox, PlayStation | Military FPS | Peak spectacle campaign and the beloved Spec Ops co-op mode | 9.5/10 |
| Call of Duty: Black Ops | PC, Xbox, PlayStation | Cold War FPS | Twisty conspiracy story and the definitive Zombies maps | 9.4/10 |
| Black Ops II | PC, Xbox, PlayStation | Near-future FPS | Branching campaign with real endings that change based on your choices | 9.3/10 |
| Call of Duty: WWII | PC, Xbox, PlayStation | WWII FPS | A grounded return to boots-on-the-ground combat after the jetpack years | 8.4/10 |
| Modern Warfare (2019) | PC, Xbox, PlayStation | Military FPS | Gorgeous reboot that rebuilt the engine and launched Warzone | 9.0/10 |
| Black Ops 6 | PC, Xbox, PlayStation | Spy-thriller FPS | Omnimovement makes traversal feel genuinely new, plus round-based Zombies | 9.1/10 |
The Original WWII Era (2003-2006)
The first three Call of Duty games were straight World War II shooters built on a heavily modified Quake III engine. The 2003 original, developed by the newly formed Infinity Ward, distinguished itself from Medal of Honor by putting you in a squad rather than making you a lone super-soldier. Call of Duty 2 was an Xbox 360 launch title and introduced regenerating health, which quickly became a genre standard. Call of Duty 3, made by Treyarch, focused on the Normandy breakout and never received a PC release. These are historically important but rough by modern standards; play them for curiosity rather than for multiplayer, and on a decent gaming monitor buying guide pick so the low-resolution textures do not look worse than they are.
The Modern Warfare Trilogy (2007-2011)
Call of Duty 4: Modern Warfare is the single most influential entry in the franchise. Moving the setting to a contemporary conflict, it introduced killstreaks, custom loadouts, prestige and the perk system that every competitor copied for the next decade. Modern Warfare 2 escalated everything with a globe-hopping campaign, and Modern Warfare 3 closed the Makarov storyline in 2011. If you only play one arc, this is the one. The trio is best experienced with a low-latency setup, which is why so many players who return to these games start by reading a gaming mouse buying guide before they touch multiplayer.
The Black Ops Sub-Series
Treyarch’s Black Ops line runs parallel to Modern Warfare and has become the more consistent brand. Black Ops (2010) follows Alex Mason through Cold War black operations; Black Ops II (2012) splits between the 1980s and a near-future 2025 with a branching campaign; Black Ops III (2015) jumps to 2065; Black Ops 4 (2018) dropped the campaign entirely in favour of multiplayer, Zombies and the Blackout battle royale. Black Ops Cold War (2020) rewound to 1981, Black Ops 6 (2024) landed in 1991 during the Gulf War, and Black Ops 7 (2025) pushed the timeline forward again. Zombies is the connective tissue across all of them.
The Experimental Years (2013-2018)
Ghosts, Advanced Warfare and Infinite Warfare are the entries most players skip. Advanced Warfare introduced the exosuit and vertical boost-jump movement, Black Ops III refined it into wall-running, and Infinite Warfare took the series to space. The backlash pushed Sledgehammer back to WWII in 2017. These games are not bad, but their movement systems age poorly compared with the more grounded entries. Anyone revisiting the boost-jump era should be running a display capable of high refresh rates; a quick look at a high refresh rate display buying guide is worthwhile before you dive in.
The Rebooted Modern Warfare Era (2019-2023)
Infinity Ward restarted Modern Warfare in 2019 with a new engine and a darker tone, then continued with Modern Warfare II (2022) and Modern Warfare III (2023). Note the Roman numerals: they distinguish the reboots from the 2009 and 2011 originals. This era is defined less by campaigns than by Warzone, which launched in March 2020 and has been rebuilt several times since. Because these games lean hard on voice comms, most squads eventually upgrade using a gaming headset buying guide rather than sticking with bundled earbuds.
Chronological Story Order
If you want events in narrative sequence, group them by universe rather than release date. The WWII games (Call of Duty 1-3 and World at War) sit earliest. The Black Ops timeline runs Black Ops Cold War and Black Ops 6 alongside Black Ops, then Black Ops II, Black Ops 4 and finally Black Ops III in 2065. The original Modern Warfare trilogy is self-contained, as is the 2019-2023 reboot trilogy, and the two should never be mixed. Ghosts, Advanced Warfare, Infinite Warfare and Vanguard each stand alone.
Where a Newcomer Should Start
Start with Modern Warfare (2019) if you want something that still has healthy servers and looks current, or with Call of Duty 4 if you want to understand why the series exploded. For Zombies, begin with Black Ops or Black Ops III. Whatever you pick, storage matters more than it used to, because modern entries routinely exceed 150GB installed; a NVMe SSD buying guide is genuinely more useful here than a GPU upgrade. Controller drift is also a common complaint in long Warzone sessions, so a gaming controller buying guide is worth a skim if you play on console.
Frequently Asked Questions
How many Call of Duty games are there in total?
Counting only mainline console and PC releases, there are twenty-two entries from 2003 through 2025, plus free-to-play Warzone. If you include handheld spin-offs, mobile releases and expansion packs, the total climbs well past thirty, which is why most order lists stick to the mainline sequence.
Do I need to play the Call of Duty games in order?
No. Each Call of Duty campaign is designed to be understood on its own, and only two arcs genuinely reward sequential play: the original Modern Warfare trilogy and the Black Ops storyline. You can jump into any recent release without missing information you need to enjoy it.
What is the difference between Modern Warfare 2 and Modern Warfare II?
Modern Warfare 2 with the numeral two was released in 2009 by Infinity Ward and continues the original trilogy. Modern Warfare II with Roman numerals is the 2022 reboot sequel, which reimagines the same characters with a different plot, new engine and separate multiplayer progression system.
Which Call of Duty game has the best multiplayer today?
Population is the deciding factor, so the most recent releases and Warzone hold the largest active player counts. Among older titles, Black Ops III and Modern Warfare (2019) still maintain reasonably populated lobbies on PC, while the pre-2010 entries are largely limited to private servers and dedicated communities.
