Railway Empire 2 from Gaming Minds Studio and Kalypso Media is a game about trains. More importantly, it's a train game that supports 4-player online co-op. Now we're talking! And one thing about train games is that you can never have enough trains in them. Well, there will soon be more trains and more empires to build. The "Industrial Wonders" expansion is due out on June 24, and it will bring the Industrial Revolution with it.

Sea of Stars is a popular 2D RPG in the style of Chrono Trigger. Since it first arrived in 2023, the game has continued to improve. First, the developer added local co-op for up to three players. Now, Sabotage Studio has released a free DLC called "Throes of the Watchmaker'" that adds hours of new content to the adventure. The game is currently on sale for 35 percent off on all platforms, so it's a great time to visit the Sea of Stars.

When gamers name of the greatest TMNT game, many of them choose TMNT: Shredder's Revenge. That game is certainly a fantastic beat 'em up, but I would argue that Teenage Mutant Ninja Turtles: Splintered Fate from Super Evil Megacorp is an even better game. Well, now Splintered Fate is about to get even betterer thanks to the "Casey Jones & the Junkyard Jam" DLC. It's coming to Steam, Switch, and iOS on February 5!

In November, the console versions of River City Girls 2 received the much anticipated "Double Dragon" DLC, which adds Billy and Jimmy Lee from Double Dragon as playable characters. The Steam version, however, didn't get the DLC or the accompanying free update at that time. Thankfully, Steam gamers won't have to wait any longer: the DLC is out now on PC. Are you ready for some Double Dragon action?

Both of the main River City Girls games from WayForward have featured cameos from the Double Dragon series in the form of shopkeepers. River City Girls 2 even made Marian an unlockable character. Still, fans have always longed for more Double Dragon content in RCG 2. Now they finally get their wish thanks to the "Double Dragon DLC." The paid DLC adds Billy and Jimmy Lee as playable characters, essentially transforming RCG 2 into a weird, awesome Double Dragon game.

WayForward's River City Girls 2 has been out for nearly two years now, but new things are still in store for it. The highly anticipated "Double Dragon" DLC was announced back in April without a release date. Well, it turns out that release is nearly upon us! The "Double Dragon" DLC will be released on November 12, adding two new playable characters and more. A free update will arrive at the same time, so everybody's River City Girls 2 experience is about to get better.

Earlier this year, Digital Eclipse and Atari announced two DLC expansions for Atari 50: The Anniversary Celebration, the comprehensive collection of Atari games and documentary content. The first DLC, "The Wilder World of Atari," arrived at the end of September. The second DLC, "The First Console War," will launch on November 8. It promises 19 new games and lots of behind-the-scenes materials, though we don't expect any of the new games to feature co-op multiplayer.

Teenage Mutant Ninja Turtles: Shredder's Revenge is one of the most popular beat 'em ups of the last few years, so it came as no surprise when the game received a DLC entitled "Dimension Shellshock." We even interviewed the developer, Tribute Games, about it. What did come as a surprise, however, is when Xbox published a trailer for a second DLC called "Radical Reptiles" today. No press release was sent out, and the DLC doesn't seem to be available just yet. Update: The DLC went live on September 24!

Back in June, Atari announced that paid DLC for Atari 50: The Anniversary Celebration was in the works, along with an Expanded Edition that will bundle the original collection and DLC. At last, that DLC is close to being released. it's coming out on September 26, and it's called "The Wider World of Atari." Atari is too cool to reveal the games that will be included just yet, but we're crossing our fingers for some co-op titles anyway.

Massive Monster and Devolver Digital's Cult of the Lamb will soon be getting the free "Unholy Alliance" update that will add local co-op to the popular roguelite game. That's a big addition that puts the game squarely on our radar in the hallowed halls of Co-Optimus. But wait, there's more! The "Pilgrim Pack" DLC will be arriving on the same date, August 12, and it adds new story content, quests, follower forms, and more.

Back in the Xbox 360 days, Castle Crashers captured the hearts of gamers with its addictive beat 'em up RPG gameplay and brilliant artwork and humor. The game would later be ported to modern consoles as Castle Crashers Remastered. While a sequel has yet to materialize, it turns out that The Behemoth actually has something in store for Castle Crashers fans: new DLC. The catch is that new DLC is only coming to Steam, but we can hope for a console release someday.

Atari 50: The Anniversary Celebration launched way back in 2022, celebrating the history of Atari with documentary content and a huge collection of retro games. Late last year, the collection received 12 new games in an update. At the time, Atari and Digital Eclipse promised more content would be coming. Today, we've finally learned how that content will take shape: in the form of Atari 50: The Anniversary Celebration Expanded Edition, a new edition with even more documentary content and games.