Online Co-op
6001 games sharing this Steam feature
Popularity of 'Online Co-op' over time
This chart shows the amount of games released over the years with the Online Co-op feature and the percentage of games released on Steam they account for. The number of releases gives an appreciation of the quantity of games published each year. It often tends to increase naturally, just like the total amount of Steam games released.
The percentage gives a better estimate of the feature's trend. It shows if the Online Co-op feature is getting more or less popular amongst developers. The Review chart will tell us if this trend is a good thing (i.e. players interest is increasing, feature is undercrowded) or if it's the opposite.
The Online Co-op game feature peaked in 2022 with 806 games released. The popularity of the feature is in a range between 0.51% in 2010 and 2.3% in 2023.
Keep in mind that the current year is not over, so the number of games released will still increase. But the percentage is usually a good estimate.
Evolution of 'Online Co-op' game reviews
This graph displays the reviews for games associated with the Online Co-op feature, both as count and as a percentage of all Steam reviews, and the value for an average game. If the graph is hard to read, you can deactivate the review count and % of the average lines by clicking on the legend.
The review count gives a view of the sheer amount of reviews a feature receives, but it also follows the popularity of Steam itself. That is why the normalized value as a percentage of all Steam reviews is often more interesting, as it gives you the popularity trend for Online Co-op feature games.
A typical game associated with this feature collected on average between 144 (2010) and 3487 (2014) reviews. Keep in mind that it is the average and not the median, meaning it is heavily influenced by extreme values, like a very successful game with this feature.
The reviews per game as a percentage of the average show that games in the Online Co-op feature received between 354% (2012) and 731% (2021) reviews compared to other features.
| Image | Name | Description | Price | Rating | Release Date |
|---|---|---|---|---|---|
  | Left 4 Dead 2 | Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008. This 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. | 9.99 | 97.6% | Nov 16, 2009 |
  | Portal 2 | The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends! | 9.99 | 98.8% | Apr 18, 2011 |
  | DEFCON | Inspired by the 1983 cult classic film, Wargames, DEFCON superbly evokes the tension, paranoia and suspicion of the Cold War era, playing on the fascinating aspects of psychological gameplay that occur during strategic nuclear warfare. You play a General hidden deep within an underground bunker. | 9.99 | 86.7% | Sep 29, 2006 |
  | Multiwinia | "Long ago a computer scientist called Dr Sepulveda created a beautiful digital world existing entirely within a computer network of his own invention. This world was called Darwinia and it was inhabited by a peaceful, law-abiding digital life-form called the Darwinians. | 9.99 | 81.8% | Sep 19, 2008 |
  | Two Worlds Epic Edition | ... 300 years after Aziraal has been banished, a brother and sister are drawn into the conflict which has flared up between the Orcs and the free world. Kyra, the hero's younger sister, suddenly disappears in mysterious circumstances.«...If my family really belongs to the chosen ones, why then have we always been as poor as church mice? | 9.99 | 76.8% | Apr 30, 2009 |
  | Quake | Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original. | 9.99 | 96.4% | Aug 3, 2007 |
  | Quake II | Mankind is at war with the Strogg, a hostile alien race planning an invasion of Earth. In response, we launched a preemptive strike...it failed. Outnumbered and outgunned, you must fight to shut down the enemy's war machine. Only then will the fate of humanity be known. | 4.99 | 92.6% | Aug 3, 2007 |
  | ThreadSpace: Hyperbol | ThreadSpace: Hyperbol is an action-strategy game set in the distant future. Players battle each other on roads in space as they pilot massive ships capable of firing a wide variety of weapons. Create defenses, coordinate with your team, and launch an assault against your opponents to achieve victory! | 4.99 | 93.3% | Jul 12, 2007 |
  | Garry's Mod | Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play. | 9.99 | 96.8% | Nov 29, 2006 |
  | Two Worlds II HD | Check out the new Velvet Edition bundle including both Two Worlds II and Pirates of the Flying Fortress DLC. | 19.99 | 59.6% | Feb 3, 2011 |
  | EVE Online | EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. | Free | 80.4% | Dec 15, 2010 |
  | Total War: EMPIRE – Definitive Edition | Command the seas, control the land, forge a new nation, and conquer the globe. | 24.99 | 89.6% | Mar 4, 2009 |
  | GROUND BRANCH | From one of the developers behind the original Rainbow Six® and Ghost Recon® games, comes a thinking-man's first-person shooter featuring in-depth character and weapon customization. Take your time. Think ahead. Get the job done. | 29.99 | 91.6% | Aug 14, 2018 |
  | Zombie Panic! Source | Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification. | Free | 84.4% | Oct 3, 2008 |
  | DC Universe™ Online | DC Universe Online is a Free-to-Play, massive multiplayer online action game set in the popular DC Universe. Become one of a new breed of Heroes or Villains and wield incredible powers as you go to war with legendary characters such as Batman, Superman, Lex Luthor and The Joker. | Free | 72.6% | Nov 2, 2011 |
  | Madballs in Babo:Invasion | Now with cross-platform multiplayer! PC vs. Mac at last. | 4.99 | 84.5% | Sep 17, 2009 |
  | Dead Horde | As a survivor of the mutant virus, make your way through the city and wipe out the hordes of flesh eating mutants. Teamwork is the key to survive the DEAD HORDE... | 5.99 | 35.6% | Jul 27, 2011 |
  | Arma 2: Operation Arrowhead | Three years after the conflict in Chernarus, portrayed in the original Arma 2, a new flashpoint explodes in the Green Sea Region. Coalition forces led by the US Army are deployed to Takistan to quickly restore peace and prevent further civilian casualties. | 19.99 | 92.2% | Jun 29, 2010 |
  | Trine Enchanted Edition | Three Heroes make their way through dangers untold in a fairytale world of great castles and strange machinery, featuring physics-based puzzles, beautiful sights and online co-op. | 14.99 | 95.8% | Jul 2, 2009 |
  | Trine 2: Complete Story | Three Heroes make their way through dangers untold in a fairytale world, featuring physics-based puzzles, beautiful sights and online co-op. | 19.99 | 95.5% | Jun 6, 2013 |
  | Angle of Attack | Angle Of Attack is the aerial combat action companion title to All Aspect Warfare. It features high-octane air combat against air, land and sea threats over vast planetary regions. See the action from a different perspective and get in on the action! | 9.99 | N/A | Aug 17, 2009 |
  | RIFT | Dive into a world of epic adventure! Create your perfect hero thanks to a uniquely customizable class system. Collect, craft, and customize your gear. Go it alone or group up to challenge dungeons, raids, dynamic open-world content, and your fellow players. | Free | 75.4% | Mar 1, 2011 |
  | FINAL FANTASY XIV Online | Take part in an epic and ever-changing FINAL FANTASY as you adventure and explore with friends from around the world. | 19.99 | 88.2% | Feb 18, 2014 |
  | SpellForce 2 - Anniversary Edition | SpellForce 2 - Anniversary Edition presents the award-winning SpellForce saga hits: "SpellForce 2 – Shadow Wars" and the add-on "SpellForce 2 – Dragon Storm" for a spectacular game experience! | 14.99 | 72.8% | Oct 29, 2009 |
  | Nation Red | Nation Red is an ultra fast infinite play arena-based shooter providing an exceptional close-quarter battlefield experience. Fight thousands of zombie mutants and their bosses in frantic bloody gameplay while earning close to 100 perks. Fight in Barricade, Survival or Free Play mode. | 2.99 | 88.6% | Sep 3, 2009 |